Hi Sean Did a quick test and using one port of an Emulex LP10K (2G FC) adapter as target in a direct attach mode (with A qlogic initiator) on a 2100z I am getting 170 MB/sec. The CPU utilization during the test was around 10%. Can you post more details of the config and test case ? Also maybe Emulex has more ideas ?
# time dd if=/dev/rdsk/c8t600144F02C00000000003E4B8BC10005d0 of=/dev/null bs=256k count=32768 32768+0 records in 32768+0 records out real 0m48.41s user 0m0.04s sys 0m0.46s Sumit Sean ONeil wrote: > I'm still having performance difficulties unfortunately. I ran an local disk > IO test with Filebench and the performance was great (aprox 500MB/s > sequential read, 250MB/s write). But using the same volume over Comstar FC > the performance is 1/8th of that at best. > > On the target machine, whenever there's disk activity on the LU via FC > target, the CPU spikes to 100% for a split second. The desktop (mouse > cursor, etc) doesn't respond during this brief moment. And it repeats itself > every 3 seconds or so as long as there's disk activity going on. > > I added more RAM and installed a new dual-core Opteron. It didn't change > anything. > -- > This message posted from opensolaris.org > _______________________________________________ > storage-discuss mailing list > [email protected] > http://mail.opensolaris.org/mailman/listinfo/storage-discuss > _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
