diff --git a/cookbook/litellm_proxy_server/grafana_dashboard/dashboard_all_metrics/grafana_dashboard.json b/cookbook/litellm_proxy_server/grafana_dashboard/dashboard_all_metrics/grafana_dashboard.json
index cedbbd0f07b..9d0d246f82c 100644
--- a/cookbook/litellm_proxy_server/grafana_dashboard/dashboard_all_metrics/grafana_dashboard.json
+++ b/cookbook/litellm_proxy_server/grafana_dashboard/dashboard_all_metrics/grafana_dashboard.json
@@ -5655,6 +5655,63 @@
       "title": "litellm_spend_log_cleanup_batch_failures rate",
       "type": "timeseries"
     },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${DS_PROMETHEUS}"
+      },
+      "description": "Disk used by the spend log tables, as last measured by the cleanup job. allocated is the total on disk, estimated_live is the share held by live rows, above_target is how far estimated_live exceeds the cleanup target (0 once reached)",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "fillOpacity": 10,
+            "lineWidth": 1,
+            "showPoints": "never",
+            "spanNulls": false
+          },
+          "unit": "bytes"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 405
+      },
+      "id": 117,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "${DS_PROMETHEUS}"
+          },
+          "editorMode": "code",
+          "expr": "max by (measure) (litellm_spend_log_storage_bytes)",
+          "legendFormat": "{{measure}}",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "litellm_spend_log_storage_bytes",
+      "type": "timeseries"
+    },
     {
       "collapsed": false,
       "gridPos": {
diff --git a/tests/unit/integrations/test_prometheus_metric_name_consistency.py b/tests/unit/integrations/test_prometheus_metric_name_consistency.py
index 2c1def4c613..75e578dfac5 100644
--- a/tests/unit/integrations/test_prometheus_metric_name_consistency.py
+++ b/tests/unit/integrations/test_prometheus_metric_name_consistency.py
@@ -60,6 +60,7 @@ def _lazy_owner_collectors() -> tuple[Collector, ...]:
     assert SpendLogCleanupMetrics.rows_remaining is not None
     assert SpendLogCleanupMetrics.batch_failures is not None
     assert SpendLogCleanupMetrics.runs is not None
+    assert SpendLogCleanupMetrics.storage_bytes is not None
     in_flight: Final = InFlightRequestsMiddleware._get_gauge()
     assert in_flight is not None
     services: Final = PrometheusServicesLogger()
@@ -72,6 +73,7 @@ def _lazy_owner_collectors() -> tuple[Collector, ...]:
         SpendLogCleanupMetrics.rows_remaining,
         SpendLogCleanupMetrics.batch_failures,
         SpendLogCleanupMetrics.runs,
+        SpendLogCleanupMetrics.storage_bytes,
         in_flight,
         services.redis_breaker_state,
         services.redis_breaker_transitions,