Hi Markus,
The numbered VDEVs listed in your zpool status output facilitate log
device removal that integrated into build 125. Eventually, they will
also be used for removal of redundant devices when device removal
integrates.
In build 125, if you create a pool with mirrored log devices, and
then you want to remove the mirrored log devices, you can remove them
individually by device name or by referring to the top-level VDEV name.
See the example below of removing by the top-level VDEV name.
You can read about this feature here:
http://docs.sun.com/app/docs/doc/817-2271/givdo?a=view
I can't find the PSARC case so maybe it only integrated as this CR:
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6574286
Cindy
# zpool create tank2 mirror c0t4d0 c0t5d0 log mirror c0t6d0 c0t7d0
# zpool status tank2
pool: tank2
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank2 ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c0t4d0 ONLINE 0 0 0
c0t5d0 ONLINE 0 0 0
logs
mirror-1 ONLINE 0 0 0
c0t6d0 ONLINE 0 0 0
c0t7d0 ONLINE 0 0 0
errors: No known data errors
# zpool remove tank2 mirror-1
# zpool status tank2
pool: tank2
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
tank2 ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
c0t4d0 ONLINE 0 0 0
c0t5d0 ONLINE 0 0 0
errors: No known data errors
On 10/19/09 11:53, Markus Kovero wrote:
Hi, I just noticed this on snv_125, is there oncoming feature that
allows use of numbered vdevs or what for are these?
(raidz2-N)
pool: tank
state: ONLINE
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
c8t40d0 ONLINE 0 0 0
c8t36d0 ONLINE 0 0 0
c8t38d0 ONLINE 0 0 0
c8t39d0 ONLINE 0 0 0
c8t41d0 ONLINE 0 0 0
c8t42d0 ONLINE 0 0 0
c8t43d0 ONLINE 0 0 0
raidz2-1 ONLINE 0 0 0
c8t44d0 ONLINE 0 0 0
c8t45d0 ONLINE 0 0 0
c8t46d0 ONLINE 0 0 0
c8t47d0 ONLINE 0 0 0
c8t48d0 ONLINE 0 0 0
c8t49d0 ONLINE 0 0 0
c8t50d0 ONLINE 0 0 0
raidz2-2 ONLINE 0 0 0
c8t51d0 ONLINE 0 0 0
c8t86d0 ONLINE 0 0 0
c8t87d0 ONLINE 0 0 0
c8t149d0 ONLINE 0 0 0
c8t91d0 ONLINE 0 0 0
c8t94d0 ONLINE 0 0 0
c8t95d0 ONLINE 0 0 0
Yours
Markus Kovero
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