On Mar 1, 2010, at 8:32 AM, Giovanni Tirloni wrote:

> On Mon, Mar 1, 2010 at 1:16 PM, Tony MacDoodle <tpsdoo...@gmail.com> wrote:
> What is the following syntax?
> 
> zpool create tank mirror c1t2d0 c1t3d0 mirror c1t4d0 c1t5d0 spare c1t6d0 
> 
> Is this RAID 0+1 or 1+0?
> 
> That's RAID1+0. You are mirroring devices and them striping the mirrors 
> together.
> 
> AFAIK, RAID0+1 is not supported since a vdev can only be of type disk, mirror 
> or raidz. And all vdevs are stripped together. Someone more experienced in 
> ZFS can probably confirm/deny this.

Correct, although the definition of vdev is not restricted to disks.
 -- richard

ZFS storage and performance consulting at http://www.RichardElling.com
ZFS training on deduplication, NexentaStor, and NAS performance
http://nexenta-atlanta.eventbrite.com (March 16-18, 2010)




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