The ability to set the backup mode at the vault store and Index location level ensures that the following happens during a backup:
While one vault store is put into backup mode any other vault store in the Enterprise Vault site can continue to archive. When the backup mode is set on a vault store its content can be retrieved. However, the vault store cannot archive new content until the backup mode is cleared.
When NetBackup sets the backup mode, Enterprise Vault uses three services internally. These services need to remain up on all Enterprise Vault servers in the Enterprise Vault site during the backup. The following is a list of the three Enterprise Vault services that must remain running during the backup:
If a backup job fails and the vault store or index location continues to be in backup mode, you can use the Enterprise Vault Administration Console or the PowerShell cmdlets to set and clear the backup mode for the following: