On Fri, Aug 22, 2008 at 00:15, mike <[EMAIL PROTECTED]> wrote: > Question #1: > > I've seen 5-6 disk zpools are the most recommended setup. > > In traditional RAID terms, I would like to do RAID5 + hot spare (13 disks > usable) out of the 15 disks (like raidz2 I suppose). What would make the most > sense to setup 15 disks with ~ 13 disks of usable space? This is for a home > fileserver, I do not need HA/hotplugging/etc. so I can tolerate a failure and > replace it with plenty of time. It's not mission critical. I'd do two raidz groups of seven disks each and a hot spare; it gives you 12 disks worth of capacity, and reasonable redundancy. Digging up room for another disk and doing 8-disk raidz2 groups would be better for professional things, but for home usage raidz will probably suffice. Make backups of the important things, on different storage.
> Question #2: > > Same question, but 10 disks, and I'd sacrifice one for parity then. Not two. > so ~9 disks usable roughly (like raidz) Well, if you'll only give up one disk, you have only one option: a single raidz group. Groups that wide aren't recommended, so you might consider buying a smaller number of larger-capacity disks (1.5TB disks are about to be out) and making a narrower group. Less disks means less opportunities for complete failure. Will _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
