topic Re: VA/Nike Performance Utility in Disk Enclosures

VA/Nike Performance Utility

MARK OWEN — Fri, 08 Nov 2002 13:41:20 GMT

The problem I am having is with a VA-7400 array. As background I have a software vendor that is updating their software. As it stands, all their old data is on a Nike array and all their new data is on the VA-7400. The vendor is complaining about performance issues on the VA-7400 as compared to the Nike array. When I ask what they are using to justify their claim they waltz around the question. My question is there a utility that I can run to compare throughput on the Nike verses the VA-7400? I am running 11.0 on a K-580.

Re: VA/Nike Performance Utility

Leif Halvarsson_2 — Fri, 08 Nov 2002 13:50:22 GMT

Hi

Postmark is a tool to mesure filesystem performance, you can get it from:
http://www.netapp.com/tech_library/3022.html

Another good performance test is to run a backup to a fast device (or to /dev/null).

Re: VA/Nike Performance Utility

Chuck J — Fri, 08 Nov 2002 13:50:49 GMT

You can use a tool such as GPM (Glance Plus?) which can report disk utilisation.

Let me check my docs as I may have something more.

Chuck J

Re: VA/Nike Performance Utility

harry d brown jr — Fri, 08 Nov 2002 14:14:33 GMT

Mark,

have a look at this thread:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x7239eea29889d611abdb0090277a778c,00.html

live free or die
harry

Re: VA/Nike Performance Utility

Roger_22 — Fri, 08 Nov 2002 14:35:01 GMT

Anyone experiencing performance problems with the VA should upgrade the firmware to HP17 and the latest Command View management software. Then, enable the new pre-fetch algorithm. This combination can have dramatic results for highly utilized systems, or low concurrency sequential workloads.

Try it, let me know what happens

Re: VA/Nike Performance Utility

Don Capps — Sat, 09 Nov 2002 15:44:02 GMT

One could use Iozone to get performance data. This is my favorite I/O tool.
See: www.iozone.org