You can run multiple backup verification jobs concurrently on the verification server, when verification requests originate on a different server than the server where the backup is created.
Note: SnapManager executes multiple verification requests from the same host serially.
SnapManager workflow for concurrent backup verification
The workflow for concurrent backup verification is as follows:
- After you create a new backup copy at the source backup server, SnapManager immediately sends it for verification to the remote verification server.
The remote server uses the same Job ID as the source server.
- The backup job sent to the remote server is displayed as running on the source server.
The remote server shows the active job as running or queued, depending on its position in the queue.
- After SnapManager verifies the first backup set at the remote server, the job runs until all the backup sets are created and verified.
Note: There is a maximum of four backup jobs from different servers that SnapManager can verify simultaneously. SnapManager places the subsequent jobs in the queue.
The job can be a full backup job that includes backup verification, a deferred backup verification job, or a backup verification job that is initiated as part of a restore job.
You can create a new full backup when the deferred integrity verification job is running if all production volumes are FlexClone enabled.
Concurrent backup verification during a restore operation
You can restore a backup when the verification job is running. When you submit a restore job with verification, SnapManager performs one of the following tasks based on the scenario:
- Aborts the restore job if any backup or deferred integrity verification jobs are running
- Cancels all the running jobs and then starts the restore operation
Note: The status of the Storage Group of all the canceled verification jobs remains unverified.
- Waits for all the currently running jobs to finish and then starts the restore operation
When you select to have the restore operation cancel all the currently running jobs, the restore operation performs the following tasks:
- Stops processing new jobs that are in the queue
- Disables all SnapManager scheduled tasks in the Windows scheduler
- If SnapManager is creating a full backup, cancels the full backup operation
- If SnapManager is running a Frequent Recovery Point operation, cancels the Frequent Recovery Point operation
- If one or more verification jobs are running, cancels all running jobs
- Waits for the full backup operation to stop
- Runs the restore operation
Concurrent backup verification and Frequent Recovery Point backup
Concurrent backup verification involves Frequent Recovery Point backup running in parallel with full backup.
- If SnapManager is waiting for VSS Snapshot copy to start, then Frequent Recovery Point backup is running.
- If SnapManager is Running backup verification for the new VSS Snapshot copy backup, then Frequent Recovery Point backup starts.
- If SnapManager is Creating a new VSS Snapshot copy backup, then Frequent Recovery Point backup fails to start.
You can select restore options for such backup from Job Control Options in the Restore window.
