I would like to find out what is disk queue depth set on our vmax. How Do I find that information ? What is recommendation level ? I will appreciate your reply.
There is a average disk queue counter on the drive stats. To get good response time from the drives, the queue should be low, 1 or 2. To get the maximum throughput from the drives, you need more IOs queued, but the response time will suffer. There is no setting for this.
In SPA's diag view, you get the avg queue depth for each disk but dont know if its correct or not.