Dear All,
We are running a huge process in parallel sessions and monitored iostat command.
Noticed that asvc_t & wsvc_t values in iostat command outputs are mostly more than 50. I found the following detail from an alternate site:
----
1.asvc_t average service time of active transactions, in milliseconds. If the average service time is exceeding more than 25, then there is issue in the specific disk and need attention.
2.wsvc_t average service time in wait queue, in milliseconds. If the wait queue is crossed more than 10 then we need to check with SAN team regarding this.
----
Please let me know whether the above statements are true? ie. I need to concentrate on disk & SAN issues for performance tuning. Kindly note that the same process is running in other clients without any performance bottlenecks. So I believe that the problem is with current disk & SAN configuration.
Please clarify.
Thanks in advance.