Ross Walker <rswwalker <at> gmail.com> writes: > > Scrubbing on a routine basis is good for detecting problems early, but > it doesn't solve the problem of a double failure during resilver.
Scrubbing doesn't solve double failures, but it significantly decreases their likelihood. The assumption here is that the most common type of 2nd failures in a double failure scenario is uncorrectable errors. Not only scrubs detect and fix unc errors, but they also stress the drives as much as a resilver would do. Personally I have had my share of single-drive failures, but never any double failure. I do scrub on a weekly or monthly basis. -mrb _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
