EVA 6400

 
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Eric Sabo_1
Regular Advisor

EVA 6400

How would one measure or baseline an EVA6400 SAN to make sure I/O performance is not hitting maximum capacity? Is there any best practice documentation on this subject.

Thanks in advance
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Johan Guldmyr
Honored Contributor
Solution

Re: EVA 6400

Hi!

You use the CLI tool evaperf to measure the performance on the EVA6400.
It can pipe output to a .csv file.

Here are some initial recommendations for EVA best practices:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=3664583&prodTypeId=12169&objectID=c01846577

More links and hints can be found in this quite lengthy thread:

http://h30499.www3.hp.com/t5/Storage-Area-Networks-SAN/EVA-4400-need-help-with-performance-issues-in-VMware/m-p/4739441#M47600

 

For example this:

EVA 4400 performance whitepaper: http://h20195.www2.hp.com/V2/GetPDF.aspx/4AA1-8473ENW.pdf

The 6400 is just a little bigger than the 4400, more cache etc. Basic performance optimization should be the same.

HP support used to have a nice tool to take the .csv file from evaperf and make a nice web page with lots of details and graphs.

Eric Sabo_1
Regular Advisor

Re: EVA 6400

We saw the evaperf in action as HP was troubleshooting an I/O issue at our site some months but how does one know what to measure against (like what is standard I/O numbers from the evaperf should we reaching)
Eric Sabo_1
Regular Advisor

Re: EVA 6400

Do you know if HP offers an EVA health check?
Johan Guldmyr
Honored Contributor

Re: EVA 6400

Standard I/O when it's maxed out?
Johan Guldmyr
Honored Contributor

Re: EVA 6400

They do. They have an "optimization team" or whatever it's called - that can do a performance analysis for you. Wasn't free though last time I checked.
Eric Sabo_1
Regular Advisor

Re: EVA 6400

I meant to say - determining current I/O we have then measuring that against what would be considered the maximum throughput for this unit. I checked and we do have evaperf setup within our environment. Can you just run it to start to collect data?
Johan Guldmyr
Honored Contributor

Re: EVA 6400

Not exactly, you need to specify some things, which EVA, output file, how often and long to capture performance data for example.
CLEB
Valued Contributor

Re: EVA 6400

I've done exactly this recently for our EVA4400 units.

Run evaperf for a long enough time and output it to csv. Something like: evaperf all -csv -cont "N second intervals" -dur "duration in seconds"

Then open an HP support incident specifying that you might have a potential performance issue and give them your data output.

You should receive a very detailed report.
Eric Sabo_1
Regular Advisor

Re: EVA 6400

Thanks for all the feedback on this issue, when I get some time, I will try some of the suggestions