avoid vcenter totals pages scanning whole database

2026-02-09 13:44:43 +11:00
parent c66679a71f
commit 5736dc6929
11 changed files with 991 additions and 195 deletions
--- a/.drone.yml
+++ b/.drone.yml
@@ -56,7 +56,7 @@ steps:
  commands:
  - cp /shared/vctp-linux-amd64 ./build/vctp-linux-amd64
  #- find .
-  - nfpm package --config vctp.yml --packager rpm --target ./build/
+  - nfpm package --config vctp-service.yml --packager rpm --target ./build/
  - ls -lah ./build/  

 - name: dell-sftp-deploy
--- a/README.md
+++ b/README.md
@@ -80,6 +80,13 @@ use:
 vctp -settings /path/to/vctp.yml -db-cleanup
 ```

+If you want a one-time cache backfill for the vCenter totals cache tables
+(`vcenter_latest_totals` and `vcenter_aggregate_totals`) and exit, use:
+
+```shell
+vctp -settings /path/to/vctp.yml -backfill-vcenter-cache
+```
+
 ## Database Configuration
 By default the app uses SQLite and creates/opens `db.sqlite3`.

--- a/components/views/snapshots.templ
+++ b/components/views/snapshots.templ
@@ -23,14 +23,12 @@ type VcenterTotalsEntry struct {
 }

 type VcenterTotalsMeta struct {
-	ViewType     string
-	TypeLabel    string
-	HourlyLink   string
-	DailyLink    string
-	MonthlyLink  string
-	HourlyClass  string
-	DailyClass   string
-	MonthlyClass string
+	ViewType    string
+	TypeLabel   string
+	HourlyLink  string
+	DailyLink   string
+	HourlyClass string
+	DailyClass  string
 }

 type VcenterChartData struct {
@@ -176,12 +174,11 @@ templ VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcen
 							<a class="web2-button" href="/">Dashboard</a>
 						</div>
 					</div>
-					<div class="web3-button-group mt-8 mb-3">
-						<a class={ meta.HourlyClass } href={ meta.HourlyLink }>Hourly</a>
-						<a class={ meta.DailyClass } href={ meta.DailyLink }>Daily</a>
-						<a class={ meta.MonthlyClass } href={ meta.MonthlyLink }>Monthly</a>
-					</div>
-				</section>
+						<div class="web3-button-group mt-8 mb-3">
+							<a class={ meta.HourlyClass } href={ meta.HourlyLink }>Hourly Detail (45d)</a>
+							<a class={ meta.DailyClass } href={ meta.DailyLink }>Daily Aggregated</a>
+						</div>
+					</section>
 				<section class="web2-card">
 					<div class="flex items-center justify-between gap-3 mb-4 flex-wrap">
 						<h2 class="text-lg font-semibold">{ meta.TypeLabel } Snapshots</h2>
--- a/components/views/snapshots_templ.go
+++ b/components/views/snapshots_templ.go
@@ -31,14 +31,12 @@ type VcenterTotalsEntry struct {
 }

 type VcenterTotalsMeta struct {
-	ViewType     string
-	TypeLabel    string
-	HourlyLink   string
-	DailyLink    string
-	MonthlyLink  string
-	HourlyClass  string
-	DailyClass   string
-	MonthlyClass string
+	ViewType    string
+	TypeLabel   string
+	HourlyLink  string
+	DailyLink   string
+	HourlyClass string
+	DailyClass  string
 }

 type VcenterChartData struct {
@@ -168,7 +166,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 		var templ_7745c5c3_Var5 string
 		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 62, Col: 50}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 60, Col: 50}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
 		if templ_7745c5c3_Err != nil {
@@ -181,7 +179,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 		var templ_7745c5c3_Var6 string
 		templ_7745c5c3_Var6, templ_7745c5c3_Err = templ.JoinStringErrs(subtitle)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 63, Col: 56}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 61, Col: 56}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var6))
 		if templ_7745c5c3_Err != nil {
@@ -194,7 +192,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 		var templ_7745c5c3_Var7 string
 		templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.JoinStringErrs(len(entries))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 71, Col: 45}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 69, Col: 45}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var7))
 		if templ_7745c5c3_Err != nil {
@@ -213,7 +211,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 				var templ_7745c5c3_Var8 string
 				templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(entry.Group)
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 86, Col: 77}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 84, Col: 77}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
 				if templ_7745c5c3_Err != nil {
@@ -231,7 +229,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 			var templ_7745c5c3_Var9 string
 			templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(entry.Label)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 92, Col: 76}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 90, Col: 76}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var9))
 			if templ_7745c5c3_Err != nil {
@@ -244,7 +242,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 			var templ_7745c5c3_Var10 string
 			templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(entry.Count)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 96, Col: 49}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 94, Col: 49}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
 			if templ_7745c5c3_Err != nil {
@@ -257,7 +255,7 @@ func SnapshotListPage(title string, subtitle string, entries []SnapshotEntry) te
 			var templ_7745c5c3_Var11 templ.SafeURL
 			templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.JoinURLErrs(entry.Link)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 99, Col: 49}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 97, Col: 49}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var11))
 			if templ_7745c5c3_Err != nil {
@@ -320,7 +318,7 @@ func VcenterList(links []VcenterLink) templ.Component {
 		var templ_7745c5c3_Var13 string
 		templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinStringErrs(len(links))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 132, Col: 43}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 130, Col: 43}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
 		if templ_7745c5c3_Err != nil {
@@ -338,7 +336,7 @@ func VcenterList(links []VcenterLink) templ.Component {
 			var templ_7745c5c3_Var14 string
 			templ_7745c5c3_Var14, templ_7745c5c3_Err = templ.JoinStringErrs(link.Name)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 145, Col: 62}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 143, Col: 62}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var14))
 			if templ_7745c5c3_Err != nil {
@@ -351,7 +349,7 @@ func VcenterList(links []VcenterLink) templ.Component {
 			var templ_7745c5c3_Var15 templ.SafeURL
 			templ_7745c5c3_Var15, templ_7745c5c3_Err = templ.JoinURLErrs(link.Link)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 147, Col: 48}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 145, Col: 48}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var15))
 			if templ_7745c5c3_Err != nil {
@@ -414,7 +412,7 @@ func VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcent
 		var templ_7745c5c3_Var17 string
 		templ_7745c5c3_Var17, templ_7745c5c3_Err = templ.JoinStringErrs(vcenter)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 171, Col: 63}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 169, Col: 63}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var17))
 		if templ_7745c5c3_Err != nil {
@@ -427,7 +425,7 @@ func VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcent
 		var templ_7745c5c3_Var18 string
 		templ_7745c5c3_Var18, templ_7745c5c3_Err = templ.JoinStringErrs(meta.TypeLabel)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 172, Col: 62}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 170, Col: 62}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var18))
 		if templ_7745c5c3_Err != nil {
@@ -462,13 +460,13 @@ func VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcent
 		var templ_7745c5c3_Var21 templ.SafeURL
 		templ_7745c5c3_Var21, templ_7745c5c3_Err = templ.JoinURLErrs(meta.HourlyLink)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 180, Col: 58}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 178, Col: 59}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var21))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "\">Hourly</a> ")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "\">Hourly Detail (45d)</a> ")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -497,159 +495,124 @@ func VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcent
 		var templ_7745c5c3_Var24 templ.SafeURL
 		templ_7745c5c3_Var24, templ_7745c5c3_Err = templ.JoinURLErrs(meta.DailyLink)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 181, Col: 56}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 179, Col: 57}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var24))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "\">Daily</a> ")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "\">Daily Aggregated</a></div></section><section class=\"web2-card\"><div class=\"flex items-center justify-between gap-3 mb-4 flex-wrap\"><h2 class=\"text-lg font-semibold\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var25 = []any{meta.MonthlyClass}
-		templ_7745c5c3_Err = templ.RenderCSSItems(ctx, templ_7745c5c3_Buffer, templ_7745c5c3_Var25...)
+		var templ_7745c5c3_Var25 string
+		templ_7745c5c3_Var25, templ_7745c5c3_Err = templ.JoinStringErrs(meta.TypeLabel)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 184, Col: 56}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var25))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, "<a class=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 32, " Snapshots</h2><span class=\"web2-badge\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var26 string
-		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs(templ.CSSClasses(templ_7745c5c3_Var25).String())
+		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs(len(entries))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 1, Col: 0}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 185, Col: 45}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var26))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "\" href=\"")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var27 templ.SafeURL
-		templ_7745c5c3_Var27, templ_7745c5c3_Err = templ.JoinURLErrs(meta.MonthlyLink)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 182, Col: 60}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var27))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "\">Monthly</a></div></section><section class=\"web2-card\"><div class=\"flex items-center justify-between gap-3 mb-4 flex-wrap\"><h2 class=\"text-lg font-semibold\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var28 string
-		templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.JoinStringErrs(meta.TypeLabel)
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 187, Col: 56}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var28))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, " Snapshots</h2><span class=\"web2-badge\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var29 string
-		templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(len(entries))
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 188, Col: 45}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var29))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, " records</span></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, " records</span></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		if chart.ConfigJSON != "" {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "<div class=\"mb-6 overflow-auto\"><div class=\"web3-chart-frame\"><canvas id=\"vcenter-totals-chart\" class=\"web3-chart-canvas\" role=\"img\" aria-label=\"Totals over time\" data-chart-config=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "<div class=\"mb-6 overflow-auto\"><div class=\"web3-chart-frame\"><canvas id=\"vcenter-totals-chart\" class=\"web3-chart-canvas\" role=\"img\" aria-label=\"Totals over time\" data-chart-config=\"")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var27 string
+			templ_7745c5c3_Var27, templ_7745c5c3_Err = templ.JoinStringErrs(chart.ConfigJSON)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 190, Col: 145}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var27))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "\"></canvas><div id=\"vcenter-totals-tooltip\" class=\"web3-chart-tooltip\" aria-hidden=\"true\"></div></div><script>\n\t\t\t\t\t\t\t\twindow.Web3Charts.renderFromDataset({\n\t\t\t\t\t\t\t\t\tcanvasId: \"vcenter-totals-chart\",\n\t\t\t\t\t\t\t\t\ttooltipId: \"vcenter-totals-tooltip\",\n\t\t\t\t\t\t\t\t})\n\t\t\t\t\t\t\t</script></div>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "<div class=\"overflow-hidden border border-slate-200 rounded\"><table class=\"web2-table\"><thead><tr><th>Snapshot Time</th><th class=\"text-right\">VMs</th><th class=\"text-right\">vCPUs</th><th class=\"text-right\">RAM (GB)</th></tr></thead> <tbody>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		for _, entry := range entries {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "<tr><td>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var28 string
+			templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.JoinStringErrs(entry.Snapshot)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 214, Col: 30}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var28))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "</td><td class=\"text-right\">")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var29 string
+			templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(entry.VmCount)
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 215, Col: 48}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var29))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "</td><td class=\"text-right\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var30 string
-			templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(chart.ConfigJSON)
+			templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(entry.VcpuTotal)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 193, Col: 145}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 216, Col: 50}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var30))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "\"></canvas><div id=\"vcenter-totals-tooltip\" class=\"web3-chart-tooltip\" aria-hidden=\"true\"></div></div><script>\n\t\t\t\t\t\t\t\twindow.Web3Charts.renderFromDataset({\n\t\t\t\t\t\t\t\t\tcanvasId: \"vcenter-totals-chart\",\n\t\t\t\t\t\t\t\t\ttooltipId: \"vcenter-totals-tooltip\",\n\t\t\t\t\t\t\t\t})\n\t\t\t\t\t\t\t</script></div>")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "<div class=\"overflow-hidden border border-slate-200 rounded\"><table class=\"web2-table\"><thead><tr><th>Snapshot Time</th><th class=\"text-right\">VMs</th><th class=\"text-right\">vCPUs</th><th class=\"text-right\">RAM (GB)</th></tr></thead> <tbody>")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		for _, entry := range entries {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "<tr><td>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "</td><td class=\"text-right\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var31 string
-			templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(entry.Snapshot)
+			templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(entry.RamTotalGB)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 217, Col: 30}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 217, Col: 51}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var31))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</td><td class=\"text-right\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var32 string
-			templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinStringErrs(entry.VmCount)
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 218, Col: 48}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var32))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "</td><td class=\"text-right\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var33 string
-			templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.JoinStringErrs(entry.VcpuTotal)
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 219, Col: 50}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var33))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</td><td class=\"text-right\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var34 string
-			templ_7745c5c3_Var34, templ_7745c5c3_Err = templ.JoinStringErrs(entry.RamTotalGB)
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `views/snapshots.templ`, Line: 220, Col: 51}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var34))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "</td></tr>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</td></tr>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, "</tbody></table></div></section></main></body>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "</tbody></table></div></section></main></body>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -657,7 +620,7 @@ func VcenterTotalsPage(vcenter string, entries []VcenterTotalsEntry, chart Vcent
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "</html>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</html>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
--- a/db/helpers.go
+++ b/db/helpers.go
@@ -1121,6 +1121,277 @@ CREATE TABLE IF NOT EXISTS vcenter_totals (
 	return nil
 }

+// EnsureVcenterLatestTotalsTable creates a compact table with one latest totals row per vCenter.
+func EnsureVcenterLatestTotalsTable(ctx context.Context, dbConn *sqlx.DB) error {
+	driver := strings.ToLower(dbConn.DriverName())
+	var ddl string
+	switch driver {
+	case "pgx", "postgres":
+		ddl = `
+CREATE TABLE IF NOT EXISTS vcenter_latest_totals (
+  "Vcenter" TEXT PRIMARY KEY,
+  "SnapshotTime" BIGINT NOT NULL,
+  "VmCount" BIGINT NOT NULL,
+  "VcpuTotal" BIGINT NOT NULL,
+  "RamTotalGB" BIGINT NOT NULL
+);`
+	default:
+		ddl = `
+CREATE TABLE IF NOT EXISTS vcenter_latest_totals (
+  "Vcenter" TEXT PRIMARY KEY,
+  "SnapshotTime" BIGINT NOT NULL,
+  "VmCount" BIGINT NOT NULL,
+  "VcpuTotal" BIGINT NOT NULL,
+  "RamTotalGB" BIGINT NOT NULL
+);`
+	}
+	if _, err := execLog(ctx, dbConn, ddl); err != nil {
+		return err
+	}
+	return nil
+}
+
+// UpsertVcenterLatestTotals stores the latest totals per vCenter.
+func UpsertVcenterLatestTotals(ctx context.Context, dbConn *sqlx.DB, vcenter string, snapshotTime int64, vmCount, vcpuTotal, ramTotal int64) error {
+	if strings.TrimSpace(vcenter) == "" {
+		return fmt.Errorf("vcenter is empty")
+	}
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err != nil {
+		return err
+	}
+	_, err := execLog(ctx, dbConn, `
+INSERT INTO vcenter_latest_totals ("Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB")
+VALUES ($1,$2,$3,$4,$5)
+ON CONFLICT ("Vcenter") DO UPDATE SET
+  "SnapshotTime" = EXCLUDED."SnapshotTime",
+  "VmCount" = EXCLUDED."VmCount",
+  "VcpuTotal" = EXCLUDED."VcpuTotal",
+  "RamTotalGB" = EXCLUDED."RamTotalGB"
+WHERE EXCLUDED."SnapshotTime" >= vcenter_latest_totals."SnapshotTime"
+`, vcenter, snapshotTime, vmCount, vcpuTotal, ramTotal)
+	return err
+}
+
+// EnsureVcenterAggregateTotalsTable creates a compact cache for hourly/daily (and optional monthly) totals.
+func EnsureVcenterAggregateTotalsTable(ctx context.Context, dbConn *sqlx.DB) error {
+	ddl := `
+CREATE TABLE IF NOT EXISTS vcenter_aggregate_totals (
+  "SnapshotType" TEXT NOT NULL,
+  "Vcenter" TEXT NOT NULL,
+  "SnapshotTime" BIGINT NOT NULL,
+  "VmCount" BIGINT NOT NULL,
+  "VcpuTotal" BIGINT NOT NULL,
+  "RamTotalGB" BIGINT NOT NULL,
+  PRIMARY KEY ("SnapshotType","Vcenter","SnapshotTime")
+);`
+	if _, err := execLog(ctx, dbConn, ddl); err != nil {
+		return err
+	}
+	_, _ = execLog(ctx, dbConn, `CREATE INDEX IF NOT EXISTS vcenter_aggregate_totals_vc_type_time_idx ON vcenter_aggregate_totals ("Vcenter","SnapshotType","SnapshotTime" DESC)`)
+	return nil
+}
+
+// UpsertVcenterAggregateTotal stores per-vCenter totals for a snapshot type/time.
+func UpsertVcenterAggregateTotal(ctx context.Context, dbConn *sqlx.DB, snapshotType, vcenter string, snapshotTime int64, vmCount, vcpuTotal, ramTotal int64) error {
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
+	if snapshotType == "" {
+		return fmt.Errorf("snapshot type is empty")
+	}
+	if strings.TrimSpace(vcenter) == "" {
+		return fmt.Errorf("vcenter is empty")
+	}
+	if err := EnsureVcenterAggregateTotalsTable(ctx, dbConn); err != nil {
+		return err
+	}
+	_, err := execLog(ctx, dbConn, `
+INSERT INTO vcenter_aggregate_totals ("SnapshotType","Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB")
+VALUES ($1,$2,$3,$4,$5,$6)
+ON CONFLICT ("SnapshotType","Vcenter","SnapshotTime") DO UPDATE SET
+  "VmCount" = EXCLUDED."VmCount",
+  "VcpuTotal" = EXCLUDED."VcpuTotal",
+  "RamTotalGB" = EXCLUDED."RamTotalGB"
+`, snapshotType, vcenter, snapshotTime, vmCount, vcpuTotal, ramTotal)
+	return err
+}
+
+// ReplaceVcenterAggregateTotalsFromSummary recomputes one snapshot's per-vCenter totals from a summary table.
+func ReplaceVcenterAggregateTotalsFromSummary(ctx context.Context, dbConn *sqlx.DB, summaryTable, snapshotType string, snapshotTime int64) (int, error) {
+	if err := ValidateTableName(summaryTable); err != nil {
+		return 0, err
+	}
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
+	if snapshotType == "" {
+		return 0, fmt.Errorf("snapshot type is empty")
+	}
+	if err := EnsureVcenterAggregateTotalsTable(ctx, dbConn); err != nil {
+		return 0, err
+	}
+	if _, err := execLog(ctx, dbConn, `
+DELETE FROM vcenter_aggregate_totals
+WHERE "SnapshotType" = $1 AND "SnapshotTime" = $2
+`, snapshotType, snapshotTime); err != nil {
+		return 0, err
+	}
+	query := fmt.Sprintf(`
+SELECT
+  "Vcenter" AS vcenter,
+  COUNT(1) AS vm_count,
+  CAST(COALESCE(SUM(COALESCE("AvgVcpuCount","VcpuCount")),0) AS BIGINT) AS vcpu_total,
+  CAST(COALESCE(SUM(COALESCE("AvgRamGB","RamGB")),0) AS BIGINT) AS ram_total
+FROM %s
+GROUP BY "Vcenter"
+`, summaryTable)
+	var rows []struct {
+		Vcenter   string `db:"vcenter"`
+		VmCount   int64  `db:"vm_count"`
+		VcpuTotal int64  `db:"vcpu_total"`
+		RamTotal  int64  `db:"ram_total"`
+	}
+	if err := selectLog(ctx, dbConn, &rows, query); err != nil {
+		return 0, err
+	}
+	upserted := 0
+	for _, row := range rows {
+		if err := UpsertVcenterAggregateTotal(ctx, dbConn, snapshotType, row.Vcenter, snapshotTime, row.VmCount, row.VcpuTotal, row.RamTotal); err != nil {
+			return upserted, err
+		}
+		upserted++
+	}
+	return upserted, nil
+}
+
+// SyncVcenterAggregateTotalsFromRegistry refreshes cached totals for summary snapshots listed in snapshot_registry.
+func SyncVcenterAggregateTotalsFromRegistry(ctx context.Context, dbConn *sqlx.DB, snapshotType string) (int, int, error) {
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
+	if snapshotType == "" {
+		return 0, 0, fmt.Errorf("snapshot type is empty")
+	}
+	if snapshotType != "daily" && snapshotType != "monthly" {
+		return 0, 0, fmt.Errorf("unsupported snapshot type for summary cache sync: %s", snapshotType)
+	}
+	if err := EnsureVcenterAggregateTotalsTable(ctx, dbConn); err != nil {
+		return 0, 0, err
+	}
+
+	query := dbConn.Rebind(`
+SELECT table_name, snapshot_time
+FROM snapshot_registry
+WHERE snapshot_type = ?
+ORDER BY snapshot_time
+`)
+	var snapshots []struct {
+		TableName    string `db:"table_name"`
+		SnapshotTime int64  `db:"snapshot_time"`
+	}
+	if err := selectLog(ctx, dbConn, &snapshots, query, snapshotType); err != nil {
+		return 0, 0, err
+	}
+
+	snapshotsRefreshed := 0
+	rowsUpserted := 0
+	failures := 0
+	for _, snapshot := range snapshots {
+		if err := ValidateTableName(snapshot.TableName); err != nil {
+			failures++
+			slog.Warn("skipping invalid summary table in snapshot registry", "snapshot_type", snapshotType, "table", snapshot.TableName, "error", err)
+			continue
+		}
+		upserted, err := ReplaceVcenterAggregateTotalsFromSummary(ctx, dbConn, snapshot.TableName, snapshotType, snapshot.SnapshotTime)
+		if err != nil {
+			failures++
+			slog.Warn("failed to refresh vcenter aggregate cache from summary table", "snapshot_type", snapshotType, "table", snapshot.TableName, "snapshot_time", snapshot.SnapshotTime, "error", err)
+			continue
+		}
+		snapshotsRefreshed++
+		rowsUpserted += upserted
+	}
+
+	if failures > 0 {
+		return snapshotsRefreshed, rowsUpserted, fmt.Errorf("vcenter aggregate cache sync finished with %d failed snapshot(s)", failures)
+	}
+	return snapshotsRefreshed, rowsUpserted, nil
+}
+
+// ListVcenterAggregateTotals lists cached totals by type.
+func ListVcenterAggregateTotals(ctx context.Context, dbConn *sqlx.DB, vcenter, snapshotType string, limit int) ([]VcenterTotalRow, error) {
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
+	if err := EnsureVcenterAggregateTotalsTable(ctx, dbConn); err != nil {
+		return nil, err
+	}
+	if limit <= 0 {
+		limit = 200
+	}
+	rows := make([]VcenterTotalRow, 0, limit)
+	query := `
+SELECT "Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB"
+FROM vcenter_aggregate_totals
+WHERE "Vcenter" = $1 AND "SnapshotType" = $2
+ORDER BY "SnapshotTime" DESC
+LIMIT $3
+`
+	if err := selectLog(ctx, dbConn, &rows, query, vcenter, snapshotType, limit); err != nil {
+		return nil, err
+	}
+	return rows, nil
+}
+
+// ListVcenterAggregateTotalsSince lists cached totals by type from a lower-bound timestamp.
+func ListVcenterAggregateTotalsSince(ctx context.Context, dbConn *sqlx.DB, vcenter, snapshotType string, since time.Time) ([]VcenterTotalRow, error) {
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
+	if err := EnsureVcenterAggregateTotalsTable(ctx, dbConn); err != nil {
+		return nil, err
+	}
+	rows := make([]VcenterTotalRow, 0, 256)
+	query := `
+SELECT "Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB"
+FROM vcenter_aggregate_totals
+WHERE "Vcenter" = $1 AND "SnapshotType" = $2 AND "SnapshotTime" >= $3
+ORDER BY "SnapshotTime" DESC
+`
+	if err := selectLog(ctx, dbConn, &rows, query, vcenter, snapshotType, since.Unix()); err != nil {
+		return nil, err
+	}
+	return rows, nil
+}
+
+// SyncVcenterLatestTotalsFromHistory backfills latest totals from existing vcenter_totals history.
+func SyncVcenterLatestTotalsFromHistory(ctx context.Context, dbConn *sqlx.DB) (int, error) {
+	if err := EnsureVcenterTotalsTable(ctx, dbConn); err != nil {
+		return 0, err
+	}
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err != nil {
+		return 0, err
+	}
+	var rows []struct {
+		Vcenter      string `db:"Vcenter"`
+		SnapshotTime int64  `db:"SnapshotTime"`
+		VmCount      int64  `db:"VmCount"`
+		VcpuTotal    int64  `db:"VcpuTotal"`
+		RamTotalGB   int64  `db:"RamTotalGB"`
+	}
+	if err := selectLog(ctx, dbConn, &rows, `
+SELECT t."Vcenter", t."SnapshotTime", t."VmCount", t."VcpuTotal", t."RamTotalGB"
+FROM vcenter_totals t
+JOIN (
+  SELECT "Vcenter", MAX("SnapshotTime") AS max_snapshot_time
+  FROM vcenter_totals
+  GROUP BY "Vcenter"
+) latest
+  ON latest."Vcenter" = t."Vcenter"
+ AND latest.max_snapshot_time = t."SnapshotTime"
+`); err != nil {
+		return 0, err
+	}
+	upserted := 0
+	for _, row := range rows {
+		if err := UpsertVcenterLatestTotals(ctx, dbConn, row.Vcenter, row.SnapshotTime, row.VmCount, row.VcpuTotal, row.RamTotalGB); err != nil {
+			return upserted, err
+		}
+		upserted++
+	}
+	return upserted, nil
+}
+
 // InsertVcenterTotals records totals for a vcenter at a snapshot time.
 func InsertVcenterTotals(ctx context.Context, dbConn *sqlx.DB, vcenter string, snapshotTime time.Time, vmCount, vcpuTotal, ramTotal int64) error {
 	if strings.TrimSpace(vcenter) == "" {
@@ -1129,15 +1400,56 @@ func InsertVcenterTotals(ctx context.Context, dbConn *sqlx.DB, vcenter string, s
 	if err := EnsureVcenterTotalsTable(ctx, dbConn); err != nil {
 		return err
 	}
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err != nil {
+		return err
+	}
 	_, err := execLog(ctx, dbConn, `
 INSERT INTO vcenter_totals ("Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB")
 VALUES ($1,$2,$3,$4,$5)
 `, vcenter, snapshotTime.Unix(), vmCount, vcpuTotal, ramTotal)
-	return err
+	if err != nil {
+		return err
+	}
+	if err := UpsertVcenterLatestTotals(ctx, dbConn, vcenter, snapshotTime.Unix(), vmCount, vcpuTotal, ramTotal); err != nil {
+		return err
+	}
+	if err := UpsertVcenterAggregateTotal(ctx, dbConn, "hourly", vcenter, snapshotTime.Unix(), vmCount, vcpuTotal, ramTotal); err != nil {
+		slog.Warn("failed to upsert vcenter_aggregate_totals", "snapshot_type", "hourly", "vcenter", vcenter, "snapshot_time", snapshotTime.Unix(), "error", err)
+	}
+	return nil
 }

 // ListVcenters returns distinct vcenter URLs tracked.
 func ListVcenters(ctx context.Context, dbConn *sqlx.DB) ([]string, error) {
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err == nil {
+		rows, err := dbConn.QueryxContext(ctx, `SELECT "Vcenter" FROM vcenter_latest_totals ORDER BY "Vcenter"`)
+		if err == nil {
+			defer rows.Close()
+			out := make([]string, 0, 32)
+			for rows.Next() {
+				var v string
+				if err := rows.Scan(&v); err != nil {
+					return nil, err
+				}
+				out = append(out, v)
+			}
+			if err := rows.Err(); err != nil {
+				return nil, err
+			}
+			if len(out) > 0 {
+				return out, nil
+			}
+			// Older installs may have vcenter_totals populated but no latest cache yet.
+			if _, err := SyncVcenterLatestTotalsFromHistory(ctx, dbConn); err == nil {
+				refreshed := make([]string, 0, 32)
+				if err := selectLog(ctx, dbConn, &refreshed, `SELECT "Vcenter" FROM vcenter_latest_totals ORDER BY "Vcenter"`); err == nil && len(refreshed) > 0 {
+					return refreshed, nil
+				}
+			}
+		}
+	}
+
+	// Fallback for older DBs before vcenter_latest_totals gets populated.
 	if err := EnsureVcenterTotalsTable(ctx, dbConn); err != nil {
 		return nil, err
 	}
@@ -1187,15 +1499,66 @@ LIMIT $2`
 	return rows, nil
 }

+// ListVcenterHourlyTotalsSince returns hourly totals for a vCenter from a minimum snapshot time.
+func ListVcenterHourlyTotalsSince(ctx context.Context, dbConn *sqlx.DB, vcenter string, since time.Time) ([]VcenterTotalRow, error) {
+	cachedRows, cacheErr := ListVcenterAggregateTotalsSince(ctx, dbConn, vcenter, "hourly", since)
+	if cacheErr == nil && len(cachedRows) > 0 {
+		return cachedRows, nil
+	}
+	if cacheErr != nil {
+		slog.Warn("failed to read hourly totals cache", "vcenter", vcenter, "since", since.Unix(), "error", cacheErr)
+	}
+
+	if err := EnsureVcenterTotalsTable(ctx, dbConn); err != nil {
+		return nil, err
+	}
+	rows := make([]VcenterTotalRow, 0, 256)
+	query := `
+SELECT "Vcenter","SnapshotTime","VmCount","VcpuTotal","RamTotalGB"
+FROM vcenter_totals
+WHERE "Vcenter" = $1
+  AND "SnapshotTime" >= $2
+ORDER BY "SnapshotTime" DESC`
+	if err := selectLog(ctx, dbConn, &rows, query, vcenter, since.Unix()); err != nil {
+		return nil, err
+	}
+	for _, row := range rows {
+		if err := UpsertVcenterAggregateTotal(ctx, dbConn, "hourly", row.Vcenter, row.SnapshotTime, row.VmCount, row.VcpuTotal, row.RamTotalGB); err != nil {
+			slog.Warn("failed to warm hourly totals cache", "vcenter", row.Vcenter, "snapshot_time", row.SnapshotTime, "error", err)
+			break
+		}
+	}
+	return rows, nil
+}
+
 // ListVcenterTotalsByType returns totals for a vcenter for the requested snapshot type (hourly, daily, monthly).
-// Hourly values come from vcenter_totals; daily/monthly are derived from the summary tables referenced in snapshot_registry.
+// Prefer vcenter_aggregate_totals cache and fallback to source tables when cache is empty.
 func ListVcenterTotalsByType(ctx context.Context, dbConn *sqlx.DB, vcenter string, snapshotType string, limit int) ([]VcenterTotalRow, error) {
-	snapshotType = strings.ToLower(snapshotType)
+	snapshotType = strings.ToLower(strings.TrimSpace(snapshotType))
 	if snapshotType == "" {
 		snapshotType = "hourly"
 	}
+
+	cachedRows, cacheErr := ListVcenterAggregateTotals(ctx, dbConn, vcenter, snapshotType, limit)
+	if cacheErr == nil && len(cachedRows) > 0 {
+		return cachedRows, nil
+	}
+	if cacheErr != nil {
+		slog.Warn("failed to read vcenter aggregate totals cache", "snapshot_type", snapshotType, "vcenter", vcenter, "error", cacheErr)
+	}
+
 	if snapshotType == "hourly" {
-		return ListVcenterTotals(ctx, dbConn, vcenter, limit)
+		rows, err := ListVcenterTotals(ctx, dbConn, vcenter, limit)
+		if err != nil {
+			return nil, err
+		}
+		for _, row := range rows {
+			if err := UpsertVcenterAggregateTotal(ctx, dbConn, "hourly", row.Vcenter, row.SnapshotTime, row.VmCount, row.VcpuTotal, row.RamTotalGB); err != nil {
+				slog.Warn("failed to warm hourly totals cache", "vcenter", row.Vcenter, "snapshot_time", row.SnapshotTime, "error", err)
+				break
+			}
+		}
+		return rows, nil
 	}

 	if limit <= 0 {
@@ -1240,6 +1603,12 @@ LIMIT $2
 			RamTotalGB:   agg.RamTotalGB,
 		})
 	}
+	for _, row := range out {
+		if err := UpsertVcenterAggregateTotal(ctx, dbConn, snapshotType, row.Vcenter, row.SnapshotTime, row.VmCount, row.VcpuTotal, row.RamTotalGB); err != nil {
+			slog.Warn("failed to warm vcenter aggregate totals cache", "snapshot_type", snapshotType, "vcenter", row.Vcenter, "snapshot_time", row.SnapshotTime, "error", err)
+			break
+		}
+	}
 	return out, nil
 }

@@ -1589,6 +1958,9 @@ func SyncVcenterTotalsFromSnapshots(ctx context.Context, dbConn *sqlx.DB) error
 	if err := EnsureVcenterTotalsTable(ctx, dbConn); err != nil {
 		return err
 	}
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err != nil {
+		return err
+	}
 	driver := strings.ToLower(dbConn.DriverName())
 	var hourlyTables []struct {
 		TableName    string `db:"table_name"`
@@ -1640,6 +2012,12 @@ WHERE NOT EXISTS (
 			if _, err := execLog(ctx, dbConn, insert, a.Vcenter, ht.SnapshotTime, a.VmCount, a.VcpuTotal, a.RamTotal); err != nil {
 				slog.Warn("failed to backfill vcenter_totals", "table", ht.TableName, "vcenter", a.Vcenter, "snapshot_time", ht.SnapshotTime, "error", err)
 			}
+			if err := UpsertVcenterLatestTotals(ctx, dbConn, a.Vcenter, ht.SnapshotTime, a.VmCount, a.VcpuTotal, a.RamTotal); err != nil {
+				slog.Warn("failed to upsert vcenter_latest_totals", "table", ht.TableName, "vcenter", a.Vcenter, "snapshot_time", ht.SnapshotTime, "error", err)
+			}
+			if err := UpsertVcenterAggregateTotal(ctx, dbConn, "hourly", a.Vcenter, ht.SnapshotTime, a.VmCount, a.VcpuTotal, a.RamTotal); err != nil {
+				slog.Warn("failed to upsert vcenter_aggregate_totals", "table", ht.TableName, "snapshot_type", "hourly", "vcenter", a.Vcenter, "snapshot_time", ht.SnapshotTime, "error", err)
+			}
 		}
 	}
 	return nil
--- a/db/helpers_cache_and_index_test.go
+++ b/db/helpers_cache_and_index_test.go
@@ -162,3 +162,316 @@ func TestParseHourlySnapshotUnix(t *testing.T) {
 		}
 	}
 }
+
+func TestVcenterLatestTotalsAndListFallback(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	if err := EnsureVcenterLatestTotalsTable(ctx, dbConn); err != nil {
+		t.Fatalf("failed to ensure vcenter_latest_totals: %v", err)
+	}
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-a", time.Unix(200, 0), 10, 20, 30); err != nil {
+		t.Fatalf("failed to insert totals for vc-a: %v", err)
+	}
+	// Older snapshot should not replace latest totals.
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-a", time.Unix(100, 0), 1, 2, 3); err != nil {
+		t.Fatalf("failed to insert older totals for vc-a: %v", err)
+	}
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-b", time.Unix(300, 0), 11, 21, 31); err != nil {
+		t.Fatalf("failed to insert totals for vc-b: %v", err)
+	}
+
+	vcenters, err := ListVcenters(ctx, dbConn)
+	if err != nil {
+		t.Fatalf("ListVcenters failed: %v", err)
+	}
+	if len(vcenters) != 2 || vcenters[0] != "vc-a" || vcenters[1] != "vc-b" {
+		t.Fatalf("unexpected vcenter list: %#v", vcenters)
+	}
+
+	var latest struct {
+		SnapshotTime int64 `db:"SnapshotTime"`
+		VmCount      int64 `db:"VmCount"`
+		VcpuTotal    int64 `db:"VcpuTotal"`
+		RamTotalGB   int64 `db:"RamTotalGB"`
+	}
+	if err := dbConn.GetContext(ctx, &latest, `
+SELECT "SnapshotTime","VmCount","VcpuTotal","RamTotalGB"
+FROM vcenter_latest_totals
+WHERE "Vcenter" = ?
+`, "vc-a"); err != nil {
+		t.Fatalf("failed to query latest totals for vc-a: %v", err)
+	}
+	if latest.SnapshotTime != 200 || latest.VmCount != 10 || latest.VcpuTotal != 20 || latest.RamTotalGB != 30 {
+		t.Fatalf("unexpected latest totals for vc-a: %#v", latest)
+	}
+}
+
+func TestListVcenterHourlyTotalsSince(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	base := time.Unix(1_700_000_000, 0)
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-a", base.AddDate(0, 0, -60), 1, 2, 3); err != nil {
+		t.Fatalf("failed to insert old totals: %v", err)
+	}
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-a", base.AddDate(0, 0, -10), 10, 20, 30); err != nil {
+		t.Fatalf("failed to insert recent totals: %v", err)
+	}
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-b", base.AddDate(0, 0, -5), 100, 200, 300); err != nil {
+		t.Fatalf("failed to insert other-vcenter totals: %v", err)
+	}
+
+	rows, err := ListVcenterHourlyTotalsSince(ctx, dbConn, "vc-a", base.AddDate(0, 0, -45))
+	if err != nil {
+		t.Fatalf("ListVcenterHourlyTotalsSince failed: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 row for vc-a since cutoff, got %d", len(rows))
+	}
+	if rows[0].SnapshotTime != base.AddDate(0, 0, -10).Unix() || rows[0].VmCount != 10 {
+		t.Fatalf("unexpected row returned: %#v", rows[0])
+	}
+}
+
+func TestInsertVcenterTotalsUpsertsHourlyAggregate(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	snapshotTime := time.Unix(1_700_000_500, 0)
+	if err := InsertVcenterTotals(ctx, dbConn, "vc-a", snapshotTime, 12, 24, 48); err != nil {
+		t.Fatalf("InsertVcenterTotals failed: %v", err)
+	}
+
+	rows, err := ListVcenterAggregateTotals(ctx, dbConn, "vc-a", "hourly", 10)
+	if err != nil {
+		t.Fatalf("ListVcenterAggregateTotals failed: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 hourly aggregate row, got %d", len(rows))
+	}
+	if rows[0].SnapshotTime != snapshotTime.Unix() || rows[0].VmCount != 12 || rows[0].VcpuTotal != 24 || rows[0].RamTotalGB != 48 {
+		t.Fatalf("unexpected hourly aggregate row: %#v", rows[0])
+	}
+}
+
+func TestListVcenterHourlyTotalsSinceUsesAggregateCache(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	base := time.Unix(1_700_000_000, 0)
+	if err := UpsertVcenterAggregateTotal(ctx, dbConn, "hourly", "vc-a", base.Unix(), 7, 14, 21); err != nil {
+		t.Fatalf("UpsertVcenterAggregateTotal failed: %v", err)
+	}
+
+	rows, err := ListVcenterHourlyTotalsSince(ctx, dbConn, "vc-a", base.Add(-24*time.Hour))
+	if err != nil {
+		t.Fatalf("ListVcenterHourlyTotalsSince failed: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 cached row, got %d", len(rows))
+	}
+	if rows[0].SnapshotTime != base.Unix() || rows[0].VmCount != 7 || rows[0].VcpuTotal != 14 || rows[0].RamTotalGB != 21 {
+		t.Fatalf("unexpected cached hourly row: %#v", rows[0])
+	}
+}
+
+func TestReplaceVcenterAggregateTotalsFromSummary(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	summaryTable := "inventory_daily_summary_20260101"
+	if _, err := dbConn.ExecContext(ctx, fmt.Sprintf(`
+CREATE TABLE %s (
+  "Vcenter" TEXT NOT NULL,
+  "Name" TEXT,
+  "VmId" TEXT,
+  "VmUuid" TEXT,
+  "AvgVcpuCount" REAL,
+  "VcpuCount" BIGINT,
+  "AvgRamGB" REAL,
+  "RamGB" BIGINT
+)`, summaryTable)); err != nil {
+		t.Fatalf("failed to create summary table: %v", err)
+	}
+	insertSQL := fmt.Sprintf(`
+INSERT INTO %s ("Vcenter","Name","VmId","VmUuid","AvgVcpuCount","AvgRamGB")
+VALUES (?,?,?,?,?,?)
+`, summaryTable)
+	rows := [][]interface{}{
+		{"vc-a", "vm-1", "1", "u1", 2.0, 4.0},
+		{"vc-a", "vm-2", "2", "u2", 3.0, 5.0},
+		{"vc-b", "vm-3", "3", "u3", 1.0, 2.0},
+	}
+	for _, args := range rows {
+		if _, err := dbConn.ExecContext(ctx, insertSQL, args...); err != nil {
+			t.Fatalf("failed to insert summary row: %v", err)
+		}
+	}
+
+	upserted, err := ReplaceVcenterAggregateTotalsFromSummary(ctx, dbConn, summaryTable, "daily", 1_700_010_000)
+	if err != nil {
+		t.Fatalf("ReplaceVcenterAggregateTotalsFromSummary failed: %v", err)
+	}
+	if upserted != 2 {
+		t.Fatalf("expected 2 vcenter aggregate rows, got %d", upserted)
+	}
+
+	vcA, err := ListVcenterAggregateTotals(ctx, dbConn, "vc-a", "daily", 10)
+	if err != nil {
+		t.Fatalf("ListVcenterAggregateTotals(vc-a) failed: %v", err)
+	}
+	if len(vcA) != 1 {
+		t.Fatalf("expected 1 vc-a daily row, got %d", len(vcA))
+	}
+	if vcA[0].SnapshotTime != 1_700_010_000 || vcA[0].VmCount != 2 || vcA[0].VcpuTotal != 5 || vcA[0].RamTotalGB != 9 {
+		t.Fatalf("unexpected vc-a daily aggregate row: %#v", vcA[0])
+	}
+
+	vcB, err := ListVcenterAggregateTotalsSince(ctx, dbConn, "vc-b", "daily", time.Unix(1_700_009_000, 0))
+	if err != nil {
+		t.Fatalf("ListVcenterAggregateTotalsSince(vc-b) failed: %v", err)
+	}
+	if len(vcB) != 1 || vcB[0].VmCount != 1 || vcB[0].VcpuTotal != 1 || vcB[0].RamTotalGB != 2 {
+		t.Fatalf("unexpected vc-b daily aggregate row: %#v", vcB)
+	}
+}
+
+func TestListVcenterTotalsByTypeDailyFallbackWarmsCache(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	if _, err := dbConn.ExecContext(ctx, `
+CREATE TABLE snapshot_registry (
+  snapshot_type TEXT,
+  table_name TEXT,
+  snapshot_time BIGINT
+)`); err != nil {
+		t.Fatalf("failed to create snapshot_registry: %v", err)
+	}
+
+	summaryTable := "inventory_daily_summary_20260102"
+	if _, err := dbConn.ExecContext(ctx, fmt.Sprintf(`
+CREATE TABLE %s (
+  "Vcenter" TEXT NOT NULL,
+  "Name" TEXT,
+  "VmId" TEXT,
+  "VmUuid" TEXT,
+  "AvgVcpuCount" REAL,
+  "VcpuCount" BIGINT,
+  "AvgRamGB" REAL,
+  "RamGB" BIGINT
+)`, summaryTable)); err != nil {
+		t.Fatalf("failed to create summary table: %v", err)
+	}
+	insertSQL := fmt.Sprintf(`
+INSERT INTO %s ("Vcenter","Name","VmId","VmUuid","AvgVcpuCount","AvgRamGB")
+VALUES (?,?,?,?,?,?)
+`, summaryTable)
+	for _, args := range [][]interface{}{
+		{"vc-a", "vm-1", "1", "u1", 4.0, 8.0},
+		{"vc-a", "vm-2", "2", "u2", 2.0, 6.0},
+	} {
+		if _, err := dbConn.ExecContext(ctx, insertSQL, args...); err != nil {
+			t.Fatalf("failed to insert summary row: %v", err)
+		}
+	}
+	if _, err := dbConn.ExecContext(ctx, `INSERT INTO snapshot_registry (snapshot_type, table_name, snapshot_time) VALUES (?,?,?)`, "daily", summaryTable, int64(1_700_020_000)); err != nil {
+		t.Fatalf("failed to insert snapshot_registry row: %v", err)
+	}
+
+	rows, err := ListVcenterTotalsByType(ctx, dbConn, "vc-a", "daily", 10)
+	if err != nil {
+		t.Fatalf("ListVcenterTotalsByType failed: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 daily row, got %d", len(rows))
+	}
+	if rows[0].SnapshotTime != 1_700_020_000 || rows[0].VmCount != 2 || rows[0].VcpuTotal != 6 || rows[0].RamTotalGB != 14 {
+		t.Fatalf("unexpected daily totals row: %#v", rows[0])
+	}
+
+	cached, err := ListVcenterAggregateTotals(ctx, dbConn, "vc-a", "daily", 10)
+	if err != nil {
+		t.Fatalf("ListVcenterAggregateTotals failed: %v", err)
+	}
+	if len(cached) != 1 || cached[0].SnapshotTime != 1_700_020_000 || cached[0].VmCount != 2 {
+		t.Fatalf("expected warmed daily cache row, got %#v", cached)
+	}
+}
+
+func TestSyncVcenterAggregateTotalsFromRegistry(t *testing.T) {
+	ctx := context.Background()
+	dbConn := newTestSQLiteDB(t)
+
+	if _, err := dbConn.ExecContext(ctx, `
+CREATE TABLE snapshot_registry (
+  snapshot_type TEXT,
+  table_name TEXT,
+  snapshot_time BIGINT
+)`); err != nil {
+		t.Fatalf("failed to create snapshot_registry: %v", err)
+	}
+
+	table1 := "inventory_daily_summary_20260103"
+	table2 := "inventory_daily_summary_20260104"
+	for _, table := range []string{table1, table2} {
+		if _, err := dbConn.ExecContext(ctx, fmt.Sprintf(`
+CREATE TABLE %s (
+  "Vcenter" TEXT NOT NULL,
+  "Name" TEXT,
+  "VmId" TEXT,
+  "VmUuid" TEXT,
+  "AvgVcpuCount" REAL,
+  "VcpuCount" BIGINT,
+  "AvgRamGB" REAL,
+  "RamGB" BIGINT
+)`, table)); err != nil {
+			t.Fatalf("failed to create summary table %s: %v", table, err)
+		}
+	}
+	insert1 := fmt.Sprintf(`INSERT INTO %s ("Vcenter","Name","VmId","VmUuid","AvgVcpuCount","AvgRamGB") VALUES (?,?,?,?,?,?)`, table1)
+	insert2 := fmt.Sprintf(`INSERT INTO %s ("Vcenter","Name","VmId","VmUuid","AvgVcpuCount","AvgRamGB") VALUES (?,?,?,?,?,?)`, table2)
+	for _, args := range [][]interface{}{
+		{"vc-a", "vm-1", "1", "u1", 2.0, 4.0},
+		{"vc-b", "vm-2", "2", "u2", 3.0, 5.0},
+	} {
+		if _, err := dbConn.ExecContext(ctx, insert1, args...); err != nil {
+			t.Fatalf("failed to insert row into %s: %v", table1, err)
+		}
+	}
+	if _, err := dbConn.ExecContext(ctx, insert2, "vc-a", "vm-3", "3", "u3", 4.0, 6.0); err != nil {
+		t.Fatalf("failed to insert row into %s: %v", table2, err)
+	}
+	if _, err := dbConn.ExecContext(ctx, `INSERT INTO snapshot_registry (snapshot_type, table_name, snapshot_time) VALUES (?,?,?)`, "daily", table1, int64(1_700_030_000)); err != nil {
+		t.Fatalf("failed to insert snapshot_registry row for table1: %v", err)
+	}
+	if _, err := dbConn.ExecContext(ctx, `INSERT INTO snapshot_registry (snapshot_type, table_name, snapshot_time) VALUES (?,?,?)`, "daily", table2, int64(1_700_040_000)); err != nil {
+		t.Fatalf("failed to insert snapshot_registry row for table2: %v", err)
+	}
+
+	snapshotsRefreshed, rowsUpserted, err := SyncVcenterAggregateTotalsFromRegistry(ctx, dbConn, "daily")
+	if err != nil {
+		t.Fatalf("SyncVcenterAggregateTotalsFromRegistry failed: %v", err)
+	}
+	if snapshotsRefreshed != 2 {
+		t.Fatalf("expected 2 snapshots refreshed, got %d", snapshotsRefreshed)
+	}
+	if rowsUpserted != 3 {
+		t.Fatalf("expected 3 rows upserted, got %d", rowsUpserted)
+	}
+
+	rows, err := ListVcenterAggregateTotals(ctx, dbConn, "vc-a", "daily", 10)
+	if err != nil {
+		t.Fatalf("ListVcenterAggregateTotals failed: %v", err)
+	}
+	if len(rows) != 2 {
+		t.Fatalf("expected 2 daily rows for vc-a, got %d", len(rows))
+	}
+	if rows[0].SnapshotTime != 1_700_040_000 || rows[0].VmCount != 1 || rows[0].VcpuTotal != 4 || rows[0].RamTotalGB != 6 {
+		t.Fatalf("unexpected latest vc-a daily row: %#v", rows[0])
+	}
+	if rows[1].SnapshotTime != 1_700_030_000 || rows[1].VmCount != 1 || rows[1].VcpuTotal != 2 || rows[1].RamTotalGB != 4 {
+		t.Fatalf("unexpected older vc-a daily row: %#v", rows[1])
+	}
+}
--- a/internal/tasks/dailyAggregate.go
+++ b/internal/tasks/dailyAggregate.go
@@ -182,6 +182,11 @@ func (c *CronTask) aggregateDailySummary(ctx context.Context, targetTime time.Ti
 	} else {
 		c.Logger.Debug("Registered daily snapshot", "table", summaryTable, "duration", time.Since(registerStart))
 	}
+	if refreshed, err := db.ReplaceVcenterAggregateTotalsFromSummary(ctx, dbConn, summaryTable, "daily", dayStart.Unix()); err != nil {
+		c.Logger.Warn("failed to refresh vcenter daily aggregate totals cache", "error", err, "table", summaryTable)
+	} else {
+		c.Logger.Debug("refreshed vcenter daily aggregate totals cache", "table", summaryTable, "rows", refreshed)
+	}

 	reportStart := time.Now()
 	c.Logger.Debug("Generating daily report", "table", summaryTable)
@@ -432,6 +437,11 @@ LIMIT 1
 	} else {
 		c.Logger.Debug("Registered daily snapshot", "table", summaryTable, "duration", time.Since(registerStart))
 	}
+	if refreshed, err := db.ReplaceVcenterAggregateTotalsFromSummary(ctx, dbConn, summaryTable, "daily", dayStart.Unix()); err != nil {
+		c.Logger.Warn("failed to refresh vcenter daily aggregate totals cache", "error", err, "table", summaryTable)
+	} else {
+		c.Logger.Debug("refreshed vcenter daily aggregate totals cache", "table", summaryTable, "rows", refreshed)
+	}
 	reportStart := time.Now()
 	c.Logger.Debug("Generating daily report", "table", summaryTable)
 	if err := c.generateReport(ctx, summaryTable); err != nil {
--- a/main.go
+++ b/main.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 	"vctp/db"
+	"vctp/internal/report"
 	"vctp/internal/secrets"
 	"vctp/internal/settings"
 	"vctp/internal/tasks"
@@ -42,6 +43,7 @@ func main() {
 	settingsPath := flag.String("settings", "/etc/dtms/vctp.yml", "Path to settings YAML")
 	runInventory := flag.Bool("run-inventory", false, "Run a single inventory snapshot across all configured vCenters and exit")
 	dbCleanup := flag.Bool("db-cleanup", false, "Run a one-time cleanup to drop low-value hourly snapshot indexes and exit")
+	backfillVcenterCache := flag.Bool("backfill-vcenter-cache", false, "Run a one-time backfill for vcenter latest+aggregate cache tables and exit")
 	flag.Parse()

 	bootstrapLogger := log.New(log.LevelInfo, log.OutputText)
@@ -104,6 +106,60 @@ func main() {
 		logger.Info("completed hourly snapshot index cleanup", "indexes_dropped", dropped)
 		return
 	}
+	if *backfillVcenterCache {
+		logger.Info("starting one-time vcenter cache backfill")
+		if err := report.EnsureSnapshotRegistry(ctx, database); err != nil {
+			logger.Error("failed to ensure snapshot registry", "error", err)
+			os.Exit(1)
+		}
+		hourlyRecords, err := report.ListSnapshots(ctx, database, "hourly")
+		if err != nil {
+			logger.Error("failed to list hourly snapshots from registry", "error", err)
+			os.Exit(1)
+		}
+		if len(hourlyRecords) == 0 {
+			logger.Warn("snapshot registry has no hourly entries; attempting registry migration before cache backfill")
+			stats, err := report.MigrateSnapshotRegistry(ctx, database)
+			if err != nil {
+				logger.Error("failed to migrate snapshot registry before cache backfill", "error", err)
+				os.Exit(1)
+			}
+			logger.Info("snapshot registry migration complete",
+				"hourly_renamed", stats.HourlyRenamed,
+				"hourly_registered", stats.HourlyRegistered,
+				"daily_registered", stats.DailyRegistered,
+				"monthly_registered", stats.MonthlyRegistered,
+			)
+		}
+
+		if err := db.SyncVcenterTotalsFromSnapshots(ctx, database.DB()); err != nil {
+			logger.Error("failed to backfill hourly vcenter totals cache", "error", err)
+			os.Exit(1)
+		}
+		latestSynced, err := db.SyncVcenterLatestTotalsFromHistory(ctx, database.DB())
+		if err != nil {
+			logger.Error("failed to backfill latest vcenter totals cache", "error", err)
+			os.Exit(1)
+		}
+
+		dailySnapshots, dailyRows, dailyErr := db.SyncVcenterAggregateTotalsFromRegistry(ctx, database.DB(), "daily")
+		if dailyErr != nil {
+			logger.Warn("daily vcenter aggregate cache backfill completed with warnings", "error", dailyErr)
+		}
+		monthlySnapshots, monthlyRows, monthlyErr := db.SyncVcenterAggregateTotalsFromRegistry(ctx, database.DB(), "monthly")
+		if monthlyErr != nil {
+			logger.Warn("monthly vcenter aggregate cache backfill completed with warnings", "error", monthlyErr)
+		}
+
+		logger.Info("completed one-time vcenter cache backfill",
+			"latest_rows_synced", latestSynced,
+			"daily_snapshots_refreshed", dailySnapshots,
+			"daily_rows_upserted", dailyRows,
+			"monthly_snapshots_refreshed", monthlySnapshots,
+			"monthly_rows_upserted", monthlyRows,
+		)
+		return
+	}

 	// Determine bind IP
 	bindIP := strings.TrimSpace(s.Values.Settings.BindIP)
--- a/server/handler/vcenters.go
+++ b/server/handler/vcenters.go
@@ -1,6 +1,7 @@
 package handler

 import (
+	"context"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -11,6 +12,12 @@ import (
 	"vctp/db"
 )

+const (
+	vcenterHourlyDetailWindowDays = 45
+	vcenterDailyDefaultLimit      = 400
+	vcenterMonthlyDefaultLimit    = 200
+)
+
 // VcenterList renders a list of vCenters being monitored.
 // @Summary List vCenters
 // @Description Lists all vCenters with recorded snapshot totals.
@@ -20,9 +27,6 @@ import (
 // @Router /vcenters [get]
 func (h *Handler) VcenterList(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
-	if err := db.SyncVcenterTotalsFromSnapshots(ctx, h.Database.DB()); err != nil {
-		h.Logger.Warn("failed to sync vcenter totals", "error", err)
-	}
 	vcs, err := db.ListVcenters(ctx, h.Database.DB())
 	if err != nil {
 		http.Error(w, fmt.Sprintf("failed to list vcenters: %v", err), http.StatusInternalServerError)
@@ -32,7 +36,7 @@ func (h *Handler) VcenterList(w http.ResponseWriter, r *http.Request) {
 	for _, vc := range vcs {
 		links = append(links, views.VcenterLink{
 			Name: vc,
-			Link: "/vcenters/totals?vcenter=" + url.QueryEscape(vc),
+			Link: "/vcenters/totals/daily?vcenter=" + url.QueryEscape(vc),
 		})
 	}
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
@@ -41,49 +45,117 @@ func (h *Handler) VcenterList(w http.ResponseWriter, r *http.Request) {
 	}
 }

-// VcenterTotals renders totals for a vCenter.
+// VcenterTotals keeps backward compatibility with the original endpoint and routes to the new pages.
 // @Summary vCenter totals
-// @Description Shows per-snapshot totals for a vCenter.
+// @Description Redirect-style handler for compatibility; use /vcenters/totals/daily or /vcenters/totals/hourly.
 // @Tags vcenters
 // @Produce text/html
 // @Param vcenter query string true "vCenter URL"
-// @Param type query string false "hourly|daily|monthly (default: hourly)"
-// @Param limit query int false "Limit results (default 200)"
+// @Param type query string false "hourly|daily|monthly"
+// @Param limit query int false "Limit results"
 // @Success 200 {string} string "HTML page"
 // @Failure 400 {string} string "Missing vcenter"
 // @Router /vcenters/totals [get]
 func (h *Handler) VcenterTotals(w http.ResponseWriter, r *http.Request) {
+	switch strings.ToLower(strings.TrimSpace(r.URL.Query().Get("type"))) {
+	case "hourly", "hourly-detail", "detail", "detailed":
+		h.VcenterTotalsHourlyDetailed(w, r)
+		return
+	case "monthly":
+		h.vcenterTotalsLegacyMonthly(w, r)
+		return
+	default:
+		h.VcenterTotalsDaily(w, r)
+		return
+	}
+}
+
+// VcenterTotalsDaily renders the daily-aggregation totals page for one vCenter.
+// @Summary vCenter daily totals
+// @Description Shows daily aggregated VM count/vCPU/RAM totals for a vCenter.
+// @Tags vcenters
+// @Produce text/html
+// @Param vcenter query string true "vCenter URL"
+// @Param limit query int false "Limit results (default 400)"
+// @Success 200 {string} string "HTML page"
+// @Failure 400 {string} string "Missing vcenter"
+// @Router /vcenters/totals/daily [get]
+func (h *Handler) VcenterTotalsDaily(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
-	vc := r.URL.Query().Get("vcenter")
+	vc, ok := requiredVcenterParam(w, r)
+	if !ok {
+		return
+	}
+	limit := parsePositiveLimit(r, vcenterDailyDefaultLimit)
+	rows, err := db.ListVcenterTotalsByType(ctx, h.Database.DB(), vc, "daily", limit)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to list daily totals: %v", err), http.StatusInternalServerError)
+		return
+	}
+	h.renderVcenterTotalsPage(ctx, w, vc, "daily", rows)
+}
+
+// VcenterTotalsHourlyDetailed renders a detailed hourly page over the most recent 45 days.
+// @Summary vCenter hourly totals (45 days)
+// @Description Shows detailed hourly VM count/vCPU/RAM totals for the latest 45 days.
+// @Tags vcenters
+// @Produce text/html
+// @Param vcenter query string true "vCenter URL"
+// @Success 200 {string} string "HTML page"
+// @Failure 400 {string} string "Missing vcenter"
+// @Router /vcenters/totals/hourly [get]
+func (h *Handler) VcenterTotalsHourlyDetailed(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	vc, ok := requiredVcenterParam(w, r)
+	if !ok {
+		return
+	}
+	since := time.Now().AddDate(0, 0, -vcenterHourlyDetailWindowDays)
+	rows, err := db.ListVcenterHourlyTotalsSince(ctx, h.Database.DB(), vc, since)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to list hourly totals: %v", err), http.StatusInternalServerError)
+		return
+	}
+	h.renderVcenterTotalsPage(ctx, w, vc, "hourly45", rows)
+}
+
+func (h *Handler) vcenterTotalsLegacyMonthly(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	vc, ok := requiredVcenterParam(w, r)
+	if !ok {
+		return
+	}
+	limit := parsePositiveLimit(r, vcenterMonthlyDefaultLimit)
+	rows, err := db.ListVcenterTotalsByType(ctx, h.Database.DB(), vc, "monthly", limit)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("failed to list monthly totals: %v", err), http.StatusInternalServerError)
+		return
+	}
+	h.renderVcenterTotalsPage(ctx, w, vc, "monthly", rows)
+}
+
+func requiredVcenterParam(w http.ResponseWriter, r *http.Request) (string, bool) {
+	vc := strings.TrimSpace(r.URL.Query().Get("vcenter"))
 	if vc == "" {
 		http.Error(w, "vcenter is required", http.StatusBadRequest)
-		return
+		return "", false
 	}
-	viewType := strings.ToLower(r.URL.Query().Get("type"))
-	if viewType == "" {
-		viewType = "hourly"
+	return vc, true
+}
+
+func parsePositiveLimit(r *http.Request, defaultLimit int) int {
+	if defaultLimit <= 0 {
+		defaultLimit = 200
 	}
-	switch viewType {
-	case "hourly", "daily", "monthly":
-	default:
-		viewType = "hourly"
-	}
-	if viewType == "hourly" {
-		if err := db.SyncVcenterTotalsFromSnapshots(ctx, h.Database.DB()); err != nil {
-			h.Logger.Warn("failed to sync vcenter totals", "error", err)
+	if raw := strings.TrimSpace(r.URL.Query().Get("limit")); raw != "" {
+		if parsed, err := strconv.Atoi(raw); err == nil && parsed > 0 {
+			return parsed
 		}
 	}
-	limit := 200
-	if l := r.URL.Query().Get("limit"); l != "" {
-		if v, err := strconv.Atoi(l); err == nil && v > 0 {
-			limit = v
-		}
-	}
-	rows, err := db.ListVcenterTotalsByType(ctx, h.Database.DB(), vc, viewType, limit)
-	if err != nil {
-		http.Error(w, fmt.Sprintf("failed to list totals: %v", err), http.StatusInternalServerError)
-		return
-	}
+	return defaultLimit
+}
+
+func (h *Handler) renderVcenterTotalsPage(ctx context.Context, w http.ResponseWriter, vc string, viewType string, rows []db.VcenterTotalRow) {
 	entries := make([]views.VcenterTotalsEntry, 0, len(rows))
 	for _, row := range rows {
 		entries = append(entries, views.VcenterTotalsEntry{
@@ -105,28 +177,26 @@ func (h *Handler) VcenterTotals(w http.ResponseWriter, r *http.Request) {
 func buildVcenterMeta(vcenter string, viewType string) views.VcenterTotalsMeta {
 	active := viewType
 	if active == "" {
-		active = "hourly"
+		active = "daily"
 	}
 	meta := views.VcenterTotalsMeta{
-		ViewType:     active,
-		TypeLabel:    "Hourly",
-		HourlyLink:   "/vcenters/totals?vcenter=" + url.QueryEscape(vcenter) + "&type=hourly",
-		DailyLink:    "/vcenters/totals?vcenter=" + url.QueryEscape(vcenter) + "&type=daily",
-		MonthlyLink:  "/vcenters/totals?vcenter=" + url.QueryEscape(vcenter) + "&type=monthly",
-		HourlyClass:  "web3-button",
-		DailyClass:   "web3-button",
-		MonthlyClass: "web3-button",
+		ViewType:    active,
+		TypeLabel:   "Daily",
+		HourlyLink:  "/vcenters/totals/hourly?vcenter=" + url.QueryEscape(vcenter),
+		DailyLink:   "/vcenters/totals/daily?vcenter=" + url.QueryEscape(vcenter),
+		HourlyClass: "web3-button",
+		DailyClass:  "web3-button",
 	}
 	switch active {
-	case "daily":
-		meta.TypeLabel = "Daily"
-		meta.DailyClass = "web3-button active"
+	case "hourly45", "hourly":
+		meta.ViewType = "hourly45"
+		meta.TypeLabel = fmt.Sprintf("Hourly (last %d days)", vcenterHourlyDetailWindowDays)
+		meta.HourlyClass = "web3-button active"
 	case "monthly":
 		meta.TypeLabel = "Monthly"
-		meta.MonthlyClass = "web3-button active"
 	default:
-		meta.ViewType = "hourly"
-		meta.HourlyClass = "web3-button active"
+		meta.ViewType = "daily"
+		meta.DailyClass = "web3-button active"
 	}
 	return meta
 }
--- a/server/router/router.go
+++ b/server/router/router.go
@@ -72,6 +72,8 @@ func New(logger *slog.Logger, database db.Database, buildTime string, sha1ver st
 	mux.HandleFunc("/vm/trace", h.VmTrace)
 	mux.HandleFunc("/vcenters", h.VcenterList)
 	mux.HandleFunc("/vcenters/totals", h.VcenterTotals)
+	mux.HandleFunc("/vcenters/totals/daily", h.VcenterTotalsDaily)
+	mux.HandleFunc("/vcenters/totals/hourly", h.VcenterTotalsHourlyDetailed)
 	mux.HandleFunc("/metrics", h.Metrics)

 	mux.HandleFunc("/snapshots/hourly", h.SnapshotHourlyList)
--- a/vctp-service.yml
+++ b/vctp-service.yml
@@ -1,7 +1,7 @@
 name: "vctp"
 arch: "amd64"
 platform: "linux"
-version: "v26.1.2"
+version: "v26.1.3"
 version_schema: semver
 description: vCTP monitors VMware VM inventory and event data to build chargeback reports
 maintainer: "@coadn"
@@ -13,7 +13,7 @@ contents:
  - src: build/vctp-linux-amd64
    dst: /usr/bin/vctp-linux-amd64

-  - src: src/vctp.yml
+  - src: src/vctp-service.yml
    dst: /etc/dtms/vctp.yml
    type: config|noreplace
    file_info: