Backup Exec to attempt snapshots of virtual machines after the first snapshot has failed to allow for backups to retry the snapshot process for customers to get a successful backup of virtual machines. After the modifications below have been made, Backup Exec will attempt to retry a Quiesced snapshot the number of times specified, if all of the retry attempts fail Backup Exec will then attempt a Non Quiesced snapshot to complete the backup of the virtual machine.  If the non quiesced snapshot is used for the backup, no application GRT will be available for restore from that backup.

Steps to configure snapshot retries:

1. Install Hotfix 199866 on the Backup Exec server.
2. Stop all of the Backup Exec services.
3. Open regedit on the Backup Exec server.
4. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec for Windows\Backup Exec\Engine\VMWare Agent
5. Create the following keys:
6. “Use hybrid snapshot method” value data = 1
7. “Snapshot retry attempts” value data = 5
8. “Snapshot retry interval” value data = 60
   Note: All keys are DWORD (32-bit) Value and all value data settings should be set to Hexadecimal.
   Note: All keys are case sensitive
   
9. Exit regedit
10. Start the Backup Exec services