Use the VSFW FlashSnap Snap Start command to mirror the volumes on the remote computer. The offhost backup option does not create mirrored volumes or resynchronize volumes that are already created and split.
Confirm that the mirrored volumes that you create with the VSFW FlashSnap option reside on disks that are shared between the remote computer (the computer containing the volumes to be backed up) and the media server.
Do not select dynamic volumes and basic volumes for the same offhost backup job because the VSFW FlashSnap option cannot perform snapshots of basic volumes. Symantec recommends that you use other backup methods for backing up basic volumes if the VSFW FlashSnap provider is selected.
If the computer on which you want to perform an offhost backup is in an environment with the Central Admin Server Option and the Veritas Cluster Server installed, and if failover occurs to a Veritas Cluster Server node, you may need to manually clean up the snapshots before restarting the offhost backup on the failover node. Refer to the VSFW documentation for details.