On Sat, 14 Jun 2008, dick hoogendijk wrote: >> With zfs you can scrub the pool at the system level. This allows you >> to discover many issues early before they become nightmares. > > #zpool status > scrub: none requested > > My question is really, do I wait 'till scrub is requested or am I > supposed to scrub on a regular basis myself.
I think that "none requested" likely means that the administrator has never issued a request to scrub the pool. 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: # Scrub the pool for errors 20 4 * * * /usr/sbin/zpool scrub MyPool Scrub helps find and correct residual problems before they cause serious problems such as when the data is used, or during resilvering. 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. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
