[Lustre-discuss] Vdev Configuration on Lustre

[Dilger, Andreas]

This should be possible by specifying the pool configuration for mkfs.lustre as you do with zpool:

    mkfs.lustre --backfstype zfs {other opts} {poolname/dataset} mirror sde sdf mirror sdg sdh

There is also a bug open to improve the mkfs.lustre(8) man page to describe the ZFS options better: https://jira.hpdd.intel.com/browse/LU-2234

On 2014/06/09, 1:21 PM, "Indivar Nair" <indivar.nair at techterra.in<mailto:indivar.nair at techterra.in>> wrote:

Hi All,

In Lustre, is it possible to create a zpool with multiple vdevs -

E.g.:

# zpool create tank mirror sde sdf mirror sdg sdh
# zpool status
  pool: tank
 state: ONLINE
 scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        tank        ONLINE       0     0     0
          mirror-0  ONLINE       0     0     0
            sde     ONLINE       0     0     0
            sdf     ONLINE       0     0     0
          mirror-1  ONLINE       0     0     0
            sdg     ONLINE       0     0     0
            sdh     ONLINE       0     0     0


This will allow us to have a single OST per OSS, with ZFS managing the striping across vdevs.

Regards,


Indivar Nair


Cheers, Andreas
--
Andreas Dilger
Lustre Software Architect
Intel High Performance Data Division