zfs discuss - Jul 2009 - "Poor Man''s Cluster" using zpool export and zpool import

Is it supported to use zpool export and zpool import to manage disk access
between two nodes that have access to the same storage device.

What issues exist if the host currently owning the zpool goes down? In this case
will using zpool import -f work? Is there possible data corruption issues?

Thanks,
Shawn
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Shawn Joy wrote:
> Is it supported to use zpool export and zpool import to manage disk access
between two nodes that have access to the same storage device.
> 
> What issues exist if the host currently owning the zpool goes down? In this
case will using zpool import -f work? Is there possible data corruption issues?
See the description of the cachefile property in the zpool(1M) man page, 
that was put there for this type of export/import clustering.

-- 
Darren J Moffat

Hi Shawn,

I have no experience with this configuration, but you might review
the information in this blog:

http://blogs.sun.com/erickustarz/entry/poor_man_s_cluster_end

ZFS is not a cluster file system and yes, possible data corruption
issues exist. Eric mentions this in his blog.

You might also check out the HA-cluster product:

http://opensolaris.org/os/community/ha-clusters/

Cindy


Shawn Joy wrote:
> Is it supported to use zpool export and zpool import to manage disk access
between two nodes that have access to the same storage device.
> 
> What issues exist if the host currently owning the zpool goes down? In this
case will using zpool import -f work? Is there possible data corruption issues?
> 
> Thanks,
> Shawn

Thanks Cindy and Darren
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This message posted from opensolaris.org