On Mon, May 10 at 9:08, Erik Trimble wrote:
Abhishek Gupta wrote:
Hi,
I just installed OpenSolaris on my Dell Optiplex 755 and created
raidz2 with a few slices on a single disk. I was expecting a good
read/write performance but I got the speed of 12-15MBps.
How can I enhance the read/write performance of my raid?
Thanks,
Abhi.
You absolutely DON'T want to do what you've done. Creating a ZFS
pool (or, for that matter, any RAID device,whether hardware or
software) out of slices/partitions of a single disk is a recipe for
horrible performance.
In essence, you reduce your performance to 1/N (or worse) of the
whole disk, where N is the number of slices you created.
+1
raidz2 on a single device is the opposite of what you want to do. If
you need some improvement in bitrot recovery you can enable multiple
copies on a single disk, which may help, but for any of the raidz
variants, you really need to use multiple physical devices to provide
that capability.
--eric
--
Eric D. Mudama
edmud...@mail.bounceswoosh.org
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