DownloadGluster 3.1 FAQ: What should I do if the master node gets corrupted?
From GlusterDocumentation
To prevent configuration loss, we recommend users export their configuration (export/import tab) and save it. If configuration gets corrupted, the configuration can be imported to restore the machine.
To prevent data loss, in the unlikely case of a disk file system corruption on a system, we recommend users create and use mirror volumes.
