on 7-24-2008 4:21 PM Matt spake the following:
I was monitoring it with SAR and there was very high level of IOWait, meaning the drive was having a hard time.How bad does the below look? Dual core AM2 5600+ with 4G DDR2 and single SATA2 drive. Matt
<snip>
User and IOwaits are a little high. Not going to stop the server, but it stops it from hitting its full potential.05:40:01 PM CPU %user %nice %system %iowait %idle 05:50:01 PM all 7.20 0.00 2.49 5.08 85.23 Average: all 14.13 0.00 3.12 14.85 67.90
How many users? I have a server with about 80 users and my averages are; Average: all 6.00 0.00 3.65 3.95 86.40 That is with 2 dualcore XEON's at 2.2 Gh and 4 gigs and a SATA raid 5 (3ware)..It was on a single drive for a month or so after a recovery and I had IOwaits like yours. System was sluggish. Users whined. It wasn't pretty. The single drive was the fastest recovery while I had to replace some drives that tanked. I have a spare, but not 3.
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