On Thu, 7 Oct 2010, Edward Ned Harvey wrote:
If you're going raidz3, with 7 disks, then you might as well just make mirrors instead, and eliminate the slow resilver.
While the math supports using raidz3, practicality (other than storage space) supports using mirrors. Mirrors are just much more agile and easier to maintain. Having one or two hot spares that zfs can resilver to right away will help improve mirrored pool reliability.
Mirrors resilver enormously faster than raidzN. At least for now, until maybe one day the raidz resilver code might be rewritten.
The resilver algorithm is closely aligned to the zfs data storage model so it is unlikely to dramatically improve.
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, 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
