> This is a sample at the time of slowdown: > > hdiskpower7 66.4 551.0K 134.4 549.8K 1.2K 14:36:30 >
Look at the actual hdisk (not hdiskpower) in the iostat output. It should have a avg/min/max response time for reads and writes. The below is ugly, but this is what I keep for some of our TSM servers. Disks: xfers read write queue time ------------- -------------------------------- ------------------------------------ ------------------------------------ -------------------------------------- --------- %tm bps tps bread bwrtn rps avg min max time fail wps avg min max time fail avg min max avg avg serv act serv serv serv outs serv serv serv outs time time time wqsz sqsz qfull hdisk142 4.5 2.0M 7.8 1.1M 858.2K 4.3 4.2 0.2 221.4 0 0 3.4 8.1 0.5 150.3 0 0 0.0 0.0 0.6 0.0 0.0 0.0 00:15:08 vgtsmstg hdisk140 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0 0 0.0 0.0 0.0 0.0 0.0 0.0 00:15:08 vgtsmstg Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.