On Wed, Jun 20, 2007 at 12:03:02PM -0400, Will Murnane wrote: > Yes. 2 disks means when one fails, you've still got an extra. In > raid 5 boxes, it's not uncommon with large arrays for one disk to die, > and when it's replaced, the stress on the other disks causes another > failure. Then the array is toast. I don't know if this is a problem > on ZFS... but they took the time to implement raidz2, so I'd suggest > it.
If you buy all the disks at once and add them to a pool all at once, they should all theoretically have appoximately the same lifespan. When one dies, you can almost count on others following soon after. Nothing sucks more than your "redundant" disk array losing more disks than it can support and you lose all your data anyway. You'd be better off doing a giant non-parity stripe and dumping to tape on a regular basis. ;) -brian -- "Perl can be fast and elegant as much as J2EE can be fast and elegant. In the hands of a skilled artisan, it can and does happen; it's just that most of the shit out there is built by people who'd be better suited to making sure that my burger is cooked thoroughly." -- Jonathan Patschke _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
