[OpenIndiana-discuss] what to setup with 4 matched disks

[James]

On 09/11/2020 16:49, Harry Putnam wrote:

> Someone (T Coalson)mentioned 3 way mirror with 2 disks.  I must admit
> I do not understand how that is even possible.  I guess my concept of
> mirror is stuck at 2 matched disks set as mirror, in a pool.

3 way mirror has 3 discs in a single "mirror".  You have three copies of 
the data and double redundancy.

# zpool create dpool mirror c3t0d0 c3t1d0 c3t2d0
# zpool status dpool
   pool: dpool
  state: ONLINE
   scan: none requested
config:

	dpool       ONLINE       0     0     0
	  mirror-0  ONLINE       0     0     0
	    c3t0d0  ONLINE       0     0     0
	    c3t1d0  ONLINE       0     0     0
	    c3t2d0  ONLINE       0     0     0



James.