The rollback checkpoint files can be backed up from the active CSM to the standby CSM on the 7705 SAR-8 Shelf V2 or 7705 SAR-18 with the rollback-sync command in the admin context. Rollback file backups are not supported on fixed platforms because they do not have redundant CSMs.
The 7705 SAR also supports automatic synchronization with the rollback-sync command in the config context. When automatic rollback synchronization is enabled, a rollback save causes the new checkpoint file to be saved on both the active and standby CSMs if the rollback location is a local location. The suffixes of all older checkpoint files on both active and standby CSMs are incremented by one. Automatic synchronization only causes newly created rollback checkpoint files to be copied to both CSMs. Any rollback checkpoint files that were created before automatic synchronization was enabled are not copied to the standby CSM but can be manually backed up with the rollback-sync command in the admin context.
If the config>rollback-sync command is enabled, deleting a rollback checkpoint file also deletes the backup file and decrements the suffix ID numbers on the standby CSM.
The dedicated rollback-sync commands are the only commands that can be used to back up rollback checkpoint files. Existing redundancy synchronization commands are not compatible with rollback checkpoint files.