zfs code - Dec 2006 - ZFS Storage Pool advice

This question is concerning ZFS.  We have a Sun Fire V890 attached to a EMC disk
array.  Here''s are plan to incorporate ZFS:
On our EMC storage array we will create 3 LUNS.  Now how would ZFS be used for
the best performance?

What I''m trying to ask is if you have 3 LUNS and you want to create a
ZFS storage pool, would it be better to have a storage pool per LUN or combine
the 3 LUNS as one big disks under ZFS and create 1 huge ZFS storage pool.

Example:
LUN1 200gb  ZFS Storage Pool "pooldata1"
LUN2 200gb  ZFS Storage Pool "pooldata2"
LUN3 200gb  ZFS Storage Pool "pooldata3"

or

LUN 600gb  ZFS Storage Pool "alldata"
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This messages posted from opensolaris.org

Hello Kory,

Tuesday, December 12, 2006, 7:30:54 PM, you wrote:

KW> This question is concerning ZFS.  We have a Sun Fire V890
KW> attached to a EMC disk array.  Here''s are plan to incorporate
ZFS:
KW> On our EMC storage array we will create 3 LUNS.  Now how would
KW> ZFS be used for the best performance?

KW> What I''m trying to ask is if you have 3 LUNS and you want to
KW> create a ZFS storage pool, would it be better to have a storage
KW> pool per LUN or combine the 3 LUNS as one big disks under ZFS and create
1 huge ZFS storage pool.

KW> Example:
KW> LUN1 200gb  ZFS Storage Pool "pooldata1"
KW> LUN2 200gb  ZFS Storage Pool "pooldata2"
KW> LUN3 200gb  ZFS Storage Pool "pooldata3"

KW> or

KW> LUN 600gb  ZFS Storage Pool "alldata"


Depends on application. Generally striping between those 3 should give
you better performance.

-- 
Best regards,
 Robert                            mailto:rmilkowski at task.gda.pl
                                       http://milek.blogspot.com