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Poor Disk Performance - DL380p Gen8

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Unilink
Occasional Contributor

Poor Disk Performance - DL380p Gen8

Hello

 

I'm hoping someone might have seen this before and be able to help me.

 

I've recently installed Windows 2012 R2 on a new Proliant DL380p Gen8 server.

The server has 2x arrays with 3x 300 SAS HDDs in one of the arrays (RAID 1 with a hotspare) and 3x 1Tb SATA drives in another array with the same config.

 

Disk peformance on both arrays is slow.

File copy speeds don't go above 5MB sec.

I've tried firmware updates and driver updates but am unable to get it to perform.

 

I've also run tests using 'PerformanceTest' and the speeds are low.  (see attached)

If I run the same tests on another Windows 2012 R2 server running on a considerably older IBM xSeries 3250 M3, the results are fine.

 

To add something else into the mix, I've another server (Proliant DL360e Gen8) experienceing exactly the same issue but with even worse disk performance results.

 

Any help will be greatefully received.

 

Thanks in advance

Richard

7 REPLIES
Jimmy Vance
HPE Pro

Re: Poor Disk Performance - DL380p Gen8

What array controllers and cache modules are installed in the two server you are working with?




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Unilink
Occasional Contributor

Re: Poor Disk Performance - DL380p Gen8

Hi Jimmy

 

I've realised I made a typo earlier, the the DL360e is actually a DL360p, apologies.

 

They are both using the default Smart Array P420i/ZM that came with the machines.

I'm not sure how to check what cache module I'm using.  I've checked the Controller Settings and the 'Phyiscal Drive Write Cache State' is set to disabled.  Is that what you're referring to?

 

Thanks

Richard

Unilink
Occasional Contributor

Re: Poor Disk Performance - DL380p Gen8

Ah, wait...

 

I've found the information within the Licence Manager.

There is no cache module installed.

Jimmy Vance
HPE Pro
Solution

Re: Poor Disk Performance - DL380p Gen8

Installing a cache module will improve performance. This paper is a good reference document for Smart Array controllers

 

Technical white paper

HP Smart Array Controller technology

http://www8.hp.com/h20195/v2/getpdf.aspx/4AA5-4124ENW.pdf?ver=1.0

 

 




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Unilink
Occasional Contributor

Re: Poor Disk Performance - DL380p Gen8

OK, thanks for your advice.

Unilink
Occasional Contributor

Re: Poor Disk Performance - DL380p Gen8

Sorry, I meant to ask.

 

Do I need anything other than than FBWC module, i.e. software or licence key?

Jimmy Vance
HPE Pro

Re: Poor Disk Performance - DL380p Gen8

No, just the FBWC module




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No support by private messages. Please ask the forum!      I work for HPE

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