Hi Curtis,
You might review the ZFS best practices info to help you determine
the best pool configuration for your environment:
http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide
If you're considering using dedup, particularly on a 24T pool, then
review the current known issues, described here:
http://hub.opensolaris.org/bin/view/Community+Group+zfs/dedup
Thanks,
Cindy
On 06/18/10 02:52, Curtis E. Combs Jr. wrote:
I am new to zfs, so I am still learning. I'm using zpool iostat to
measure performance. Would you say that smaller raidz2 sets would give
me more reliable and better performance? I'm willing to give it a
shot...
On Fri, Jun 18, 2010 at 4:42 AM, Pasi Kärkkäinen <pa...@iki.fi> wrote:
On Fri, Jun 18, 2010 at 01:26:11AM -0700, artiepen wrote:
Well, I've searched my brains out and I can't seem to find a reason for this.
I'm getting bad to medium performance with my new test storage device. I've got
24 1.5T disks with 2 SSDs configured as a zil log device. I'm using the Areca
raid controller, the driver being arcmsr. Quad core AMD with 16 gig of RAM
OpenSolaris upgraded to snv_134.
The zpool has 2 11-disk raidz2's and I'm getting anywhere between 1MB/sec to
40MB/sec with zpool iostat. On average, though it's more like 5MB/sec if I
watch while I'm actively doing some r/w. I know that I should be getting better
performance.
How are you measuring the performance?
Do you understand raidz2 with that big amount of disks in it will give you
really poor random write performance?
-- Pasi
I'm new to OpenSolaris, but I've been using *nix systems for a long time, so if
there's any more information that I can provide, please let me know. Am I doing
anything wrong with this configuration? Thanks in advance.
--
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