Michael Shadle wrote:
On Wed, Apr 1, 2009 at 3:19 AM, Michael Shadle <mike...@gmail.com> wrote:
I'm going to try to move one of my disks off my rpool tomorrow (since
it's a mirror) to a different controller.
According to what I've heard before, ZFS should automagically
recognize this new location and have no problem, right?
I successfully have realized how nice ZFS is with locating the proper
location of the disk across different controllers/ports. Besides for
rpool - ZFS boot. Moving those creates a huge PITA.
Now quick question - if I have a raidz2 named 'tank' already I can
expand the pool by doing:
zpool attach tank raidz2 device1 device2 device3 ... device7
It will make 'tank' larger and each group of disks (vdev? or zdev?)
You cannot expand a RAIDZ or RAIDZ2 at all. You must back up the data
and destroy
if you wish to alter the number of disks in a single RAIDz or RAIDZ2 stripe.
You may however attach and additional RAIDZ or RAIDZ2 to an existing
storage pool.
Your pool would look something like below if you add additional RAIDZ's.
This is an output from a J4500 with 48 x 1TB drives with multiple
RAIDZ's in a single pool
yielding ~30TB or so.
pool: nbupool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
nbupool ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t2d0 ONLINE 0 0 0
c2t3d0 ONLINE 0 0 0
c2t4d0 ONLINE 0 0 0
c2t5d0 ONLINE 0 0 0
c2t6d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t7d0 ONLINE 0 0 0
c2t8d0 ONLINE 0 0 0
c2t9d0 ONLINE 0 0 0
c2t10d0 ONLINE 0 0 0
c2t11d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t12d0 ONLINE 0 0 0
c2t13d0 ONLINE 0 0 0
c2t14d0 ONLINE 0 0 0
c2t15d0 ONLINE 0 0 0
c2t16d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t17d0 ONLINE 0 0 0
c2t18d0 ONLINE 0 0 0
c2t19d0 ONLINE 0 0 0
c2t20d0 ONLINE 0 0 0
c2t21d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t22d0 ONLINE 0 0 0
c2t23d0 ONLINE 0 0 0
c2t24d0 ONLINE 0 0 0
c2t25d0 ONLINE 0 0 0
c2t26d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t27d0 ONLINE 0 0 0
c2t28d0 ONLINE 0 0 0
c2t29d0 ONLINE 0 0 0
c2t30d0 ONLINE 0 0 0
c2t31d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t32d0 ONLINE 0 0 0
c2t33d0 ONLINE 0 0 0
c2t34d0 ONLINE 0 0 0
c2t35d0 ONLINE 0 0 0
c2t36d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t37d0 ONLINE 0 0 0
c2t38d0 ONLINE 0 0 0
c2t39d0 ONLINE 0 0 0
c2t40d0 ONLINE 0 0 0
c2t41d0 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t42d0 ONLINE 0 0 0
c2t43d0 ONLINE 0 0 0
c2t44d0 ONLINE 0 0 0
c2t45d0 ONLINE 0 0 0
c2t46d0 ONLINE 0 0 0
spares
c2t47d0 AVAIL
c2t48d0 AVAIL
c2t49d0 AVAIL
will be dual parity. It won't create a mirror, will it?
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