Hello Bob,
Wednesday, April 15, 2009, 1:01:02 AM, you wrote:
BF Today I updated the firmware on my StorageTek 2540 to the latest
BF recommended version and am seeing radically difference performance
BF when testing with iozone than I did in February of 2008. I am using
BF Solaris 10 U5 with
On Tue, 21 Apr 2009, Robert Milkowski wrote:
BF One change is that I had applied a firmware tweak from Joel Miller
BF (apparently no longer at Sun) to tell the array to ignore cache sync
BF commands (i.e. don't wait for disk). This updated firmware seems
BF totally different so it is unlikely
On 4/20/2009 7:26 PM, Robert Milkowski wrote:
Well, you need to disable cache flushes on zfs side then (or make a
firmware change work) and it will make a difference.
If you're running recent OpenSolaris/Solaris/SX builds you shouldn't
have to disable cache flushing on the array. The
On Mon, 20 Apr 2009, Torrey McMahon wrote:
On 4/20/2009 7:26 PM, Robert Milkowski wrote:
Well, you need to disable cache flushes on zfs side then (or make a
firmware change work) and it will make a difference.
If you're running recent OpenSolaris/Solaris/SX builds you shouldn't have to
Today I updated the firmware on my StorageTek 2540 to the latest
recommended version and am seeing radically difference performance
when testing with iozone than I did in February of 2008. I am using
Solaris 10 U5 with all the latest patches.
This is the performance achieved (on a 32GB file)
I should have allowed the iozone run to go futher. What is really
interesting is that performance is very much tied to file size:
KB reclen write rewritereadreread
33554432 64 76688 27870 552106 555438
33554432 128 103120 369527
