[zfs-discuss] Rename disk labels in an already running zpool?

Gregor Kopka (@zfs-discuss) zfs-discuss at kopka.net
Sat Dec 2 03:45:45 EST 2017


The question was 'without breaking the zpool' (as in 'damage it/have to
recreate'), not 'without unmounting it' (the answer for the latter would
be: not possible).

Gregor

Am 02.12.2017 um 09:42 schrieb Gandalf Corvotempesta:
> Not if mounted AFAIK...
>
> Il 2 dic 2017 9:41 AM, "Gregor Kopka (@zfs-discuss) via zfs-discuss"
> <zfs-discuss at list.zfsonlinux.org
> <mailto:zfs-discuss at list.zfsonlinux.org>> ha scritto:
>
>     Simple:
>
>     zpool export xtbmr
>     zpool import xtbmr -d /dev/disk/by-id
>
>     Gregor
>
>     Am 02.12.2017 um 08:44 schrieb Zenny via zfs-discuss:
>>     Hi,
>>
>>     I have a mirror pool with two drives:
>>
>>             NAME                        STATE     READ WRITE CKSUM
>>             xtbmr                       ONLINE       0     0     0
>>               mirror-0                  ONLINE       0     0     0
>>                 sde                      ONLINE       0     0     0
>>                 sda                      ONLINE       0     0     0
>>
>>
>>     I want to change the labels derived from disk-id. 'ls -la
>>     /dev/disk/by-id' outputs:
>>
>>         lrwxrwxrwx 1 root root   9 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA22435B -> ../../sde
>>         lrwxrwxrwx 1 root root  10 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA22435B-part1 -> ../../sde1
>>         lrwxrwxrwx 1 root root  10 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA22435B-part9 -> ../../sde9
>>         lrwxrwxrwx 1 root root   9 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA224RJK -> ../../sda
>>         lrwxrwxrwx 1 root root  10 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA224RJK-part1 -> ../../sda1
>>         lrwxrwxrwx 1 root root  10 Dec  2 08:08
>>         ata-ST10000VN0004-1ZD101_ZA224RJK-part9 -> ../../sda9
>>
>>
>>     How can I change the disk labeling
>>
>>     FROM sde TO ata-ST10000VN0004-1ZD101_ZA22435B
>>     FROM sda TO ata-ST10000VN0004-1ZD101_ZA224RJK
>>
>>     without breaking the zpool?
>>
>>     Inputs appreciated and have a nice weekend!
>>
>>     Cheers,
>>     /z
>>
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