[ZFS] How to change the geom label for a disk without losing data in the ZFS pool?

[jhell]

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On Sat, 29 Jan 2011 22:47, universite@ wrote:
> Why does not appear glabel label  when connecting to a ZFS pool???
>
> # zpool status
>  pool: tank
> state: ONLINE
> scrub: scrub in progress for 9h7m, 51,27% done, 8h40m to go
> config:
>
>        NAME           STATE     READ WRITE CKSUM
>        tank           ONLINE       0     0     0
>          raidz2       ONLINE       0     0     0
>            gpt/disk0  ONLINE       0     0     0
>            gpt/disk1  ONLINE       0     0     0
>            gpt/disk2  ONLINE       0     0     0
>            gpt/disk3  ONLINE       0     0     0
>            gpt/disk4  ONLINE       0     0     0
>            ad18p1     ONLINE       0     0     0
>

You are using gpt/* labels in this pool and there is no use for glabel(8) 
functionality since you already have the disk labeled by gpart(8).

If you would like to use glabel(8) instead then your pool will need to be 
pointed to those devices like so:

zpool create tank raidz2 label/disk{0,1,2,3,4}


If you were to use glabel(8) on any other disk that has been setup to not 
use the generic label/* then the result of using glabel(8) would be to the 
same effect as writing to parts of your pool and destroying the data that 
is already on it causing the situation that you see here.


To say the least... choose one or the other but not both.


Regards,

- -- 

  jhell

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