topic EVA vraid performance in Disk Enclosures

EVA vraid performance

ben horan — Mon, 03 Mar 2008 15:33:40 GMT

Can anyone point me to documentation that covers EVA vraid performance (vraid1 vs. vraid5)? The only documentation I find talks about protection level rather than performance of vraids.

Re: EVA vraid performance

Patrick Terlisten — Mon, 03 Mar 2008 16:26:04 GMT

Hello Ben,

are you searching for benchmark results?? Have you read the best practise guide for the EVA?

Best regards,
Patrick

Re: EVA vraid performance

Nguyen Anh Tien — Tue, 04 Mar 2008 03:39:54 GMT

I think attached best practices will much help you.
Grant point if it address your need

Re: EVA vraid performance

ben horan — Tue, 04 Mar 2008 16:13:11 GMT

That is helpful but all it really says is that "Vraid1 provides the best performance" and unfortunately does not provide evidence. Is there any benchmarks/figures for vraid1 vs vraid5 performance?

Re: EVA vraid performance

Nguyen Anh Tien — Wed, 05 Mar 2008 02:41:26 GMT

There is no exact number or percent for you as public document. Please contact with your local HP personnel, He will address this issue for you. I know some tool but it is used for internal only.

Re: EVA vraid performance

Patrick Terlisten — Wed, 05 Mar 2008 08:00:25 GMT

Hello Ben,

performance depends on you configuration. More disks - more performance. I don't think that HP will provide you an exact percentage for performance between Vraid 1 and 5.

Best regards,
Patrick

Re: EVA vraid performance

Peter Mattei — Wed, 05 Mar 2008 19:23:54 GMT

Hi

vraid 1 and vraid5 on an EVA do have the same read performance.
An EVA8100 can achive up to 60000 backend read IOPS with <30ms response time.

max backend write performance of an EVA8100 for vraid1 is 26500 IOPS for vraid5 14000 IOPS.

To achive these values you need a fully configured array and IO distribution across all disks.

Cheers
Pete