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I/O SAN performance check

Fabrizio Maggioni_2
Super Advisor

I/O SAN performance check

Hi all,


This is my environment:


Server HPUX 11.23 V2 with Oracle

Storage Hitaci 9990

Switch Brocade


The customer complain about Oracle database performance .


I have already check performance on Storage/Brocade and all seems fine. Now I would like to check I/O utilization on the server. (CPU/MEM are OK)


With sar and glance i found out sometimes avque/avwait abnormal value, but happen with random behavior.

I need to be sure that system is correctly configured. For example filesystem configuration, kernel parameter and patch.

Do you have any suggestion to investigate on Operating System side ?