After a SnapRestore reversion of a volume, which action ensures correct incremental backups?

• A. Perform a base-level backup of the volume after you restore it.
• B. Reboot the storage system to reset timestamps back to their original times before the reversion.
• C. Take a new snapshot of the volume to create new base-level timestamps for the incremental backup.
• D. Take a new snapshot of the volume to create new base-level timestamps for the incremental backup, and then perform a base-level backup of the volume after you restore it.

Answer: (A)

When a volume is SnapRestored, the data currently on the volume reflects an earlier point in time, while the existing backup chain was built from a base snapshot that’s now out of sync. To guarantee that subsequent incremental backups correctly represent changes from the restored state, you need to establish a new baseline by performing a base-level backup right after the restore. This new full backup creates a fresh starting point for all future increments, ensuring the backup stream aligns with the volume’s current data.

Taking just a new snapshot doesn’t establish that baseline for incremental backups, since snapshots are point-in-time copies and don’t reset the backup chain. Rebooting won’t rebase the backup history either, and combining a snapshot with a base backup isn’t necessary—the essential step is the fresh base-level backup after the restore.