On 2010-03-11 22:23, Matthew Geier wrote: > I've had a disk fail in such a way on a SCSI array that all disks on > that SCSI bus became unavailable simultaneously. When half the disks > dropped of the array at the same time, it gave up and corrupted the RAID > 5 meta data so that even after removing the offending drive, the array > didn't recover.
In that scenario you *should* be able to recover by reconfiguring the RAID as it originally was before the SCSI crash, and *not* initializing the logical drives. I have my systems all mail me a nightly report of RAID configuration in case I ever need to do this. While I might be able to remember how I configured RAIDs at install time, the config may change over time, e.g. after a hot spare is brought online. If you are using LSI-based RAID controllers, you might be able to save the current controller config with MegaCLI using the -cfgsave option periodically, and recover the config after a crash using -cfgrestore. _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
