[PVE-User] HP Smart Array P410i

[Philippe Schwarz]

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Le 28/05/2012 00:36, Laurent CARON a écrit :
> On 28/05/2012 00:18, Philippe Schwarz wrote:
>> So, i'm wondering about actual proxmox kernel to be used with
>> those HP Smart Array P410i (1GB NV cache) controllers.
>> 
>> Found a few informations about issues; not very easy to be sure
>> about it :
>> 
>> http://forum.proxmox.com/archive/index.php/t-8530.html or 
>> http://pve.proxmox.com/pipermail/pve-user/2012-February/003303.html
>>
>>
>>
>> 
Does anyone use p410i without issue ?
> 
> Hi,
> 
> No problem with P410 (and other PXXX series here) although those 
> controlers exhibit a quite low performance (related to the
> controler, not promox).
> 
> Laurent
Hi,
thanks for tour answer.
It's a little bit frightening in fact.
It's has been proven, that without battery backup cache, performance
are awful; but in spite of everything, it seems indeed you're right
about perf :
http://www.overclock.net/t/515068/tuning-a-hp-smart-array-p400-with-linux-why-tuning-really-matters
for instance.
Even with tuning,8 SAS disks leading to 300MB/s is not very impressive
at all!

Should i ask for other HP raid controller ?

Thanks.


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