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you may also want to check out Eric Kustarz's blog,which is good to note if your're using storage arrays:
Noel
On Oct 16, 2006, at 11:21 AM, Torrey McMahon wrote: Ciaran Johnston (AT/LMI) wrote: [SNIP]
With our current filesystem, we create two 5-disk RAID5 arrays and export these as two logical devices, with two spare disks. In a ZFS scenario, is it worth us letting the 3510 do RAID5 in the way we currently do, or should we let ZFS manage all the RAID using raid-z and treat the 3510 as 12 discrete devices? What about spare disks in a ZFS pool? Any advice is greatly appreciated.
You might want to troll through the discussion list on the opensolaris site to get some more info on your situation but, as always, it depends. Is this the only host that will be using the array? Other systems running ZFS? Are you migrating at some point?
If you want to do a simple speed check then I'd create some R0 stripes, server those to the system running ZFS, and then put RAIDZ or mirrors on top of it. I'm pretty sure it isn't possible to farm out the individual drives from the 3510. You have to overlay some sort of RAID first.
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