On Wed, 2007-09-05 at 14:26 -0700, Richard Elling wrote: > AFAIK, nobody has characterized resilvering, though this is about the 4th > time this week someone has brought the topic up. Has anyone done work here > that we don't know about? If so, please speak up :-)
I haven't been conducting controlled experiments, but I have been moving a large pool around recently via a series of zpool replace operations, and so have been keeping an eye on a bunch of resilvering. The one conclusion I have so far is that, for the pool I'm moving, the time to complete a disk-replacement resilver seems to be largely independent of the number of disks being resilvered (so far, I've done batches of up to seven replacements) and in the same ballpark as a scrub. To be conservative, I'm moving only one disk per raidz group per "pass". - Bill _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss