On Mon, November 29, 2010 04:50, taemun wrote: > I would urge you to consider a 2^n + p number of disks. For raidz, p = 1, > so an acceptable number of total drives is 3, 5 or 9. raidz2 has two > parity drives, hence 4, 6 or 10. These vdev widths ensure that the data > blocks are divided into nicer sizes. A 128KB block in a 9-wide raidz vdev > will be split into 128/(9-1) = 16KB chunks.
Wouldn't nine disks in a a one-parity RAID set be pushing reliability a bit? Notwithstanding things like rebuild/resilver time and IOps, anyone know of a maximum recommended size to minimize the chances of losing an entire pool? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
