Bruce Allen <[EMAIL PROTECTED]> writes: >> I think you should add a parity verification to this - not just a >> sector scan. > > Good idea. In other words, don't just check that all disk surfaces > are readable by the disk device. Also check that the data is > consistent from the RAID perspective. Did I understand you correctly?
Exactly. A colleague (hi, Peter!) just found that our shiny (and cheap) new p400 controllers don't have this rather basic functionality. So we will probably change our procurement procedures to avoid this in the future. And even among those controllers that *can* verify the parity, there seem to be many that don't handle a detected inconsistency in any sane fashion. Often they just recompute the parity block and claim that the damage is "repaired". Yeah, right. -- Leif Nixon - Systems expert ------------------------------------------------------------ National Supercomputer Centre - Linkoping University ------------------------------------------------------------ _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
