On Sat, Jun 14, 2008 at 02:51:31PM -0500, Bob Friesenhahn wrote: > > I think that "none requested" likely means that the administrator has > never issued a request to scrub the pool.
Or the system. That status line will show the last scrub/resilver to have taken place. "None requested" means that no scrub/resilver has happened. > How often to scrub depends on how much you care about your data and > how invasive the scrub is to other activities (I/O bandwidth > consumption, snapshots, acoustic noise, electricity consumption), and > how long the scrub takes. My pool is set to be scrubbed every night > via a cron job: And like all other things of this nature, the more often you do it, the less invasive it will be as there is less to do. That being said, I still wouldn't recommend hourly scrubs. ;) > The statistical chances of problems during disk resilvering are surely > significantly improved if scrub is executed often since scrub and > resilvering both access the same data. This is based on the "Does the > sun comes up every day?" principle. Also I would think that this would in the worst case scenario reduce the amount of time to resilver, but I could be wrong. -brian -- "Coding in C is like sending a 3 year old to do groceries. You gotta tell them exactly what you want or you'll end up with a cupboard full of pop tarts and pancake mix." -- IRC User (http://www.bash.org/?841435) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
