Dale Ghent wrote:
On May 1, 2009, at 4:01 AM, Ian Collins wrote:
Dale Ghent wrote:
On May 1, 2009, at 2:09 AM, Wilkinson, Alex wrote:
So, shall I forget ZFS and use UFS ?
Not at all. Just export lots of LUNs from your EMC to get the IO
scheduling win, not one giant one, and configure the zpool as a stripe.
What, no redundancy?
Leave that up to the array he's getting the LUNs from.
EMC. It's where data lives.
Not if you want ZFS to actually be able to recover from checksum
detected failures. ZFS must be in control of the redundancy, ie a
mirror, raidz or raidz2. If ZFS is just given 1 or more LUNs in a
stripe then it is unlikely to be able to recover from data corruption,
it might be able to recover metadata because it is always stored with at
least copies=2 but that is best efforts.
--
Darren J Moffat
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