Hello Richard, Saturday, November 4, 2006, 12:46:05 AM, you wrote:
REP> Incidentally, since ZFS schedules the resync iops itself, then it can REP> really move along on a mostly idle system. You should be able to resync REP> at near the media speed for an idle system. By contrast, a hardware REP> RAID array has no knowledge of the context of the data or the I/O scheduling, REP> so they will perform resyncs using a throttle. Not only do they end up REP> resyncing unused space, but they also take a long time (4-18 GBytes/hr for REP> some arrays) and thus expose you to a higher probability of second disk REP> failure. However some mechanism to slow or freeze scrub/resilvering would be useful. Especially in cases where server does many other things and not only file serving - and scrub/resilver can take much CPU power on slower servers. Something like 'zpool scrub -r 10 pool' - which would mean 10% of speed. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
