ZFS and glabels when export/importing

[FreeBSD Optik Sécurité]

Le 2011-10-18 21:57, Daryl Sayers a écrit :
> 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.
>
Hi!

I just tried it and had no problem on 9.0-BETA3 AMD64. The labels were 
still intact and used by ZFS after the import. Which FreeBSD version are 
you using?

Martin