diff --git a/topology/University of California San Diego/UCSD OSG/StashCaches_downtime.yaml b/topology/University of California San Diego/UCSD OSG/StashCaches_downtime.yaml
index 5f5b9c28c..8078f7642 100644
--- a/topology/University of California San Diego/UCSD OSG/StashCaches_downtime.yaml	
+++ b/topology/University of California San Diego/UCSD OSG/StashCaches_downtime.yaml	
@@ -19,3 +19,14 @@
   Services:
   - XRootD cache server
 # ---------------------------------------------------------
+- Class: UNSCHEDULED
+  ID: 1754329572
+  Description: changing main volume
+  Severity: Outage
+  StartTime: Mar 14, 2024 16:30 +0000
+  EndTime: Mar 15, 2024 16:30 +0000
+  CreatedTime: Mar 14, 2024 16:15 +0000
+  ResourceName: Stashcache-UCSD
+  Services:
+  - XRootD cache server
+# ---------------------------------------------------------