nickpatel46
2 Bronze

how do I find disks queue depth on vmax ? what is recommended level ?

Hi Folks,

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.

Thanks

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3 Replies
Quincy561
4 Beryllium

Re: how do I find disks queue depth on vmax ? what is recommended level ?

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.

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sauravrohilla
4 Tellurium

Re: how do I find disks queue depth on vmax ? what is recommended level ?

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In SPA's diag view, you get the avg queue depth for each disk but dont know if its correct or not.

regards,

Saurabh

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Quincy561
4 Beryllium

Re: how do I find disks queue depth on vmax ? what is recommended level ?

That can't be correct.  Something is wrong.  I would suggest opening a case.  Maybe you need a SE/SPA update.

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