Date: 19 Oct 2011 12:57:58 +1100 From: Daryl Sayers <darylXYZ@ci.com.au> To: freebsd-questions@freebsd.org Subject: ZFS and glabels when export/importing Message-ID: <ynjmxcxzqs9.fsf@mippet.ci.com.au>
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Had a prblem when I needed to export a zpool and import again. The pool used
glabels for each device but after the import the pool is now using the raw
devices names.
sandbox# zpool create -f tank3 raidz1 /dev/label/012 /dev/label/066 label/040 label/064
sandbox# zpool status
pool: tank3
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
tank3 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
label/012 ONLINE 0 0 0
label/066 ONLINE 0 0 0
label/040 ONLINE 0 0 0
label/064 ONLINE 0 0 0
sandbox# glabel list | grep Name
1. Name: label/012
1. Name: ada0
1. Name: label/066
1. Name: ada1
1. Name: label/040
1. Name: ada2
1. Name: label/064
1. Name: ada3
sandbox# zpool export tank3
sandbox# glabel list | grep Name
1. Name: label/012
1. Name: ada0
1. Name: label/066
1. Name: ada1
1. Name: label/040
1. Name: ada2
1. Name: label/064
1. Name: ada3
sandbox# zpool import tank3
sandbox# glabel list
sandbox# zpool status
pool: tank3
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
tank3 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ada0 ONLINE 0 0 0
ada1 ONLINE 0 0 0
ada2 ONLINE 0 0 0
ada3 ONLINE 0 0 0
------------------------------------------------------------------
The only way I could get zfs to use the glabels without destroying the pool
was to install a new drive, glabel it and then replace that with the first
drive, then do the same for each drive.
sandbox# zpool replace -f tank3 /dev/ada0 label/014
... wait for completion
sandbox# zpool replace -f tank3 /dev/ada1 label/012
... wait for completion
Note that I did not need to glabel any drive (except the newly installed
spare) so the label was still intact on each drive.
So, How do I do an export and import and still keep the glabels that the
original pool was created with.
--
Daryl Sayers
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