Complete system failure recovery

Recover from complete system failure by deleting the database. Then, reload the metadata from the dump file using the ccmdb load command, and then restoring the file system data from its separate backup. The work performed in the file system since the last dump is lost. However, because the metadata dumps are relatively small and fast, you can perform dumps frequently and limit the amount of work lost since the last dump.

Recover from metadata loss by reloading the saved metadata using ccmdb load with the overwrite option. If the failure occurred in the file system, you can restore from the file system backup without restoring the metadata. Either of these partial restorations might leave the metadata and file system inconsistent. Use ccm fs_check to locate areas where these inconsistencies are serious.

For more about the command, see:

ccmdb info

ccmdb info

ccmdb info


Feedback