diff --git a/nextcloud-backup-to-backblaze.sh b/nextcloud-backup-to-backblaze.sh
index 7e79f7e..1cd1946 100755
--- a/nextcloud-backup-to-backblaze.sh
+++ b/nextcloud-backup-to-backblaze.sh
@@ -17,8 +17,10 @@ BACKUP_DIR="/opt/nextcloud-backup/.backups"
 LOG_DIR="${BACKUP_DIR}/logs"
 TIMESTAMP=$(date +%Y%m%d_%H%M%S)
 LOG_FILE="${LOG_DIR}/backup_${TIMESTAMP}.log"
-# Use staging directory on disk with sufficient space (not tmpfs /tmp)
-STAGING_DIR="/mnt/nextcloud-data/.backup-staging"
+# Use warm-storage NFS mount for staging (900GB available, separate from data disk)
+# /mnt/nextcloud-data is 2TB total with 1.4TB data = can't fit 587GB backup
+# /mnt/warm-storage is 900GB NFS with 0% used = sufficient space
+STAGING_DIR="/mnt/warm-storage/.backup-staging"
 TEMP_DIR="${STAGING_DIR}/nextcloud-backup-${TIMESTAMP}"
 
 # Create directories