On Fri, Mar 26, 2010 at 11:39 AM, Slack-Moehrle < mailingli...@mailnewsrss.com> wrote:
> I am looking at ZFS and I get that they call it RAIDZ which is similar to > RAID 5, but what about RAID 10? Isn't a RAID 10 setup better for data > protection? > > So if I have 8 x 1.5tb drives, wouldn't I: > > - mirror drive 1 and 5 > - mirror drive 2 and 6 > - mirror drive 3 and 7 > - mirror drive 4 and 8 > > Then stripe 1,2,3,4 > > Then stripe 5,6,7,8 > > How does one do this with ZFS? > > Overly-simplified, a ZFS pool is a RAID0 stripeset across all the member vdevs, which can be either mirrors (essentially RAID10), or raidz1 (essentially RAID50), or raidz2 (essentially RAID60), or raidz3 (essentially RAID70???). A pool with a single mirror vdev is just a RAID1. A pool with a single raidz1 vdev is just a RAID5. And so on. But, as you add vdevs to a pool, it becomes a stripeset across all the vdevs. -- Freddie Cash fjwc...@gmail.com
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