Requestors

The Requestor is a piece of software (typically a backup application) responsible for the following tasks:

Initiating the request for a VSS backup
Processing the backup instructions from the Writers, including which files are selected for backup and the methods that should be used to back up those files
Backing up the shadow copy data to media
Signaling the completion of the backup by deleting the shadow copy data from the disk

Arcserve Backup is designed to function as the Requestor in VSS backups.