VM Restore Failing at 92% – Commvault v11.32.76

Hi everyone,

I'm facing a recurring issue when restoring a virtual machine (VMware) using Commvault version 11.32.76. The restore consistently fails at the same point, regardless of different configurations and attempts.

🛠️ Environment Overview

• Restore type: Full Virtual Machine Restore

• Transport modes tested: NBD and NBD SSL

• MediaAgent: properly installed, communicates with vCenter and ESXi

• Destination datastore: accessible and has sufficient free space

• VM progress: restore completes up to 92% (~84 GB of ~91 GB total)

• Permissions & services: confirmed running correctly

❌ Error Behavior

• Restore job starts and progresses normally

• .vmdk files are successfully created and opened in the target datastore

• Failure occurs at the final phase, with the status:

   

  RestoreVMData failed

  yet no specific write/read/seek errors are logged

Relevant log snippet (vsrst.log)

RestoreVMData failed. CloseArchiveRet: [0] Seek Error [0] Write Error [0] Read Error [0] Browse Error [0] Restored 80266 of 86563 extents (92%) writedisk: Bytes [84165001216], Speed [4.59 MB/s] LookupEntity - .vmdk not found! Marking VM as pending Sending FAILED complete message to JM

Already tested

• Reduced number of streams to 4

• Changed destination VM name (to avoid object conflicts)

• Tried different target datastores

• Restarted Commvault services

• Network and port connectivity (443 & 902): tested OK

• Installed required packages: File System Core, Virtual Server, MediaAgent

• File-Level Restore (FLR) tested and working correctly

❓Looking for guidance on:

• Is this a known SDT or pipeline timeout issue?

• Could this be fixed by using HotAdd transport mode? (not tested yet due to infra constraints)

• Any advanced settings or workarounds to force a successful commit?