On Jun 14, 2011, at 10:38 AM, Jim Klimov wrote: > 2011-06-14 19:23, Richard Elling пишет: >> On Jun 14, 2011, at 5:18 AM, Jim Klimov wrote: >> >>> Hello all, >>> >>> Is there any sort of a "Global Hot Spare" feature in ZFS, >>> i.e. that one sufficiently-sized spare HDD would automatically >>> be pulled into any faulted pool on the system? >> Yes. See the ZFS Admin Guide section on Designating Hot Spares inYour >> Storage Pool. >> -- richard > Yes, thatnk. I've read that, but the guide and its examples > only refer to hot spares for a certain single pool, except > in the starting phrase: "The hot spares feature enables you > to identify disks that could be used to replace a failed or > faulted device in one or more storage pools. " > > Further on in the examples, hot spares are added to specific > pools, etc. > > Can the same spare be added to several pools?
Yes > > So far it is a theoretical question - I don't have a box with > several pools and a spare disk in place at once, which I'd > want to sacrifice to uncertain experiments ;) ZFS won't let you intentionally compromise a pool without warning. Now, as to whether a hot spare for multiple pools is a good thing, that depends on many factors. I find for most systems I see today, warm spares are superior to hot spares. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
