Chris,

If you have created a RAIDZ storage pool then yes, you would use zpool
replace to replace the existing disks with the larger disks. See the
example below of a RAIDZ replacement example.

A bug currently exists that means you might have to export and import
the pool to see the expanded disk space.

More device replacement tips are provided here:

http://docs.sun.com/app/docs/doc/817-2271/gazgd?a=view

Cindy

# zpool status
   pool: pool
  state: ONLINE
  scrub: none requested
config:

         NAME         STATE     READ WRITE CKSUM
         pool         ONLINE       0     0     0
           raidz1     ONLINE       0     0     0
             c7t40d0  ONLINE       0     0     0
             c7t40d1  ONLINE       0     0     0
             c7t40d2  ONLINE       0     0     0

# zpool replace pool c7t40d0 c3t1d0
# zpool status pool
   pool: pool
  state: ONLINE
  scrub: resilver completed after 0h0m with 0 errors on Wed Nov 12 
09:18:02 2008
config:

         NAME         STATE     READ WRITE CKSUM
         pool         ONLINE       0     0     0
           raidz1     ONLINE       0     0     0
             c3t1d0   ONLINE       0     0     0
             c7t40d1  ONLINE       0     0     0
             c7t40d2  ONLINE       0     0     0

errors: No known data errors

zpool replace pool c7t40d1 c3t2d0 (and so on)...

Chris wrote:
> I found this posted on another site and its exactly what I want to do.  I 
> have 6 drives I want to replace with 6 larger drives.  Can anyone help me 
> with what commands I would need to run?  Do I replace, Offline, etc?
> 
> ==================
> 2) replace all the drives in the raidz, 1 by 1 (waiting for zfs to 
> reconstruct the data on the new drive), and when you have replaced the final 
> drive the zpool will "magically" increase in size. i.e replace the 500GB 
> drives, 1 by 1, with 750GB drives, and when you finish the zpool effective 
> storage will jump to 2250GB.
> ==================
> 
> thanks,
> Chris
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