Module
Backup module
Reason:
During backup disk level MUS is disabled because there are VSS writers in local node.
When the OFA agent is installed on the local machine, VSS writers will be displayed in the backup manager. If you select the VSS writers along with the volumes to back up, multi-sreaming backup for local node will be disabled.
This is because the following global options are set for VSS writers by default:
- Files included by a Writer will be excluded from file system backups.
- Files excluded by a Writer will be excluded from file system backups.
These global options need VSS writers and volumes to be backed up in one stream.
Action:
In global options, uncheck the default options for writers and components on the Volume Shadow Copy Service tab.
To eliminate this warning:
1. Use only one stream in the backup job. You can select a FSD group as destination.
2. To use multiple stream, in backup manager open 'global options' dialog, click the 'Volume Shadow Copy Service' and then uncheck the following two options for 'Writers and components':
- Files included by a Writer will be excluded from file system backups.
- Files excluded by a Writer will be excluded from file system backups.
3. Open registry editor, create DWORD value named 'ForciblyMUSForLocalVSSBackup' under key
'HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCServe Backup\Base\Task\Backup', and then set the value to 1.
This registry key value will forcibly disable the default global options for 'Writers and Components'
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