On Fri, 18 Sep 2009, Lloyd H. Gill wrote:

The Sun docs seem to indicate it possible, but not a recommended course. I
realize there are some advantages, such as snapshots, etc. But, the h/w raid
will handle most disk problems, basically reducing the great capabilities
of the big reasons to deploy zfs. One suggestion would be to create the h/w
RAID LUNs as usual, present them to the OS, then do simple striping with
ZFS.

ZFS will catch issues that the H/W RAID will not. Other than this, there is nothing inherently wrong with the "simple striping" with ZFS as long as you are confident about your SAN device. If your SAN device fails, the whole ZFS pool may be lost, and if the failure is temporary, then the pool will be down until the SAN is restored.

If you care to keep your pool up and alive as much as possible, then mirroring across SAN devices is recommended.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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