On Thu, Feb 9, 2012 at 3:50 PM, David Brodbeck <[email protected]> wrote: > In my experience it's often the resilvering process that triggers the > failure of the second drive -- and this is an issue with RAID in general, > not just with ZFS. The reason is you're suddenly forcing a read of all the > the data on all the remaining drives, and this can uncover latent failures. > It's also not that uncommon for a hotspare to turn out to be bad -- after > all, it's been spinning just as long as the rest of the disks. > > This is, incidentally, why I don't run single-parity RAID anymore. That > and I like to stay in bed at night. ;) > > -- > David Brodbeck > System Administrator, Linguistics > University of Washington
And this is a great argument (IMHO) for running periodic scrubs of your zpools! Then when you actually need to re-silver it's not a 'never tried that before' stressor for the system. -Eric _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
