Re: Anyone using ZFS with SAN storage?
- From: Roger Johnson <roger0080@xxxxxxxxxxxx>
- Date: Mon, 22 Jan 2007 20:58:26 -0600
Gary Mills wrote:
ZFS seems designed to combine a number of real disk devices into a
storage pool, using various RAID techniques. How well does it work in
the situation where storage comes from a virtual disk on a SAN,
presented in the form of a single LUN? I'm setting up a large IMAP
server with storage provided by an iSCSI SAN. All of the redundancy
and other disk management will take place on the SAN. ZFS on the
server will provide valuable filesystem features, such as dynamic
sizing and snapshots. This seems like a good design to me. Are there
any drawbacks to using ZFS in this manner?
Taking it one step further, ZFS, SAN storage, and Sun Cluster seem like
an ideal combination for high reliability. Has anyone tried this
already?
From Solaris Internals: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#General_ZFS_Administration_Information
Recommends:
"For better performance, use individual disks or at least LUNs made up of just a few disks. By providing ZFS with more visibility into the LUNs setup, ZFS will be able to make better I/O scheduling decisions."
There may be other info like this in the ZFS Administration Guide, IIRC.
.
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