FlashBackup and alternate client combination example
FlashBackup is a policy type that combines the speed of raw-partition backup with the ability to restore individual files. FlashBackup can be combined with off-host backup methods, such as alternate client backup in the split-mirror configuration.
The figure shows the following phases:
Phase | Action |
|---|---|
Phase 1 | Mirror disk is synchronized with primary. |
Phase 2 | Primary client collaborates with the alternate client to create the snapshot. Primary client splits the mirror disk from primary disk, and mounts the snapshot on the alternate client. |
Phase 3 | Alternate client creates file system map of the snapshot. |
Phase 4 | Alternate client sends the file system map to the media server. |
Phase 5 | Alternate client streams the snapshot-based backup from the mirror to the media server. |
Phase 6 | Media server reads the backup image from the alternate client. |
Phase 7 | Media server writes the backup image to storage. |