VMware backups stuck at 0% and fails with Backup Window expired
Problem description
- Every time a job is run, it stays stuck at 0%.
- The job may or may not pass the snapshot phase.
- The VM shows disk consolidation is needed.
- The network is fine.
- When performed consolidation it fails with disks is locked.
- When the snapshot fails, the VCenter console shows,
Snapshot failed - Too many levels of redo logs.
Traceback
Main_Service.log shows
['Finished snapshot operation.'
[INFO] Pinging Sync Server
[ERROR] roboSyncer: network error while execute_node : Dropped network connection. (#100000022) (Error Code : PHOENIX34)!! [2021-07-22 04:47:43,748] [WARNING] No connection available in pool to execute_rpc_all_active.
Vmware error
This virtual machine has more than 100 redo logs in a single branch of its snapshot tree.
Resolution
- Verify the VM (name) folder by browsing the datastore.
- It should not contain multiple snapshot disks.
- Virtual Machine needs maintenance task.