Hi Andrew, After KS & OLS discussions about memory pressure, I wanted to re-do iSCSI testing with "dd"s to see if we are throttling writes. I created 50 10-GB ext3 filesystems on iSCSI luns. Test is simple 50 dds (one per filesystem). System seems to throttle memory properly and making progress. (Machine doesn't respond very well for anything else, but my vmstat keeps running - 100% sys time). Thanks, Badari