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Re: [Xen-users] Large server, Xen limitations



On Fri, 2 Jan 2009 10:00:40 -0500 (EST), Steve Thompson <smt@xxxxxxxxxxxx>
wrote:
> On Fri, 2 Jan 2009, John Madden wrote:
> 
>> On Thursday 01 January 2009 08:15:09 am morten@xxxxxxxxxxxxxx wrote:
>>> We're talking about a 4 x Quad core CPU server with 64 GBs of RAM and a
>>> couple of terabytes of RAIDed SATA storage.
>>
>> I'd worry about your I/O with that setup if you plan to do anything
>> disk-intensive.  If you're already spending on the 64GB RAM, buy SAS.
> 
> I second this recommendation. I went with SATA myself for cost reasons (I
> got 750 GB enterprise SATA drives for $120 each). I guess that the best I
> can say is that SATA gives better price/performance.

Right, thanks for the tip.  :-)

We need a lot of storage space, and believe the applications will benefit
more
from available memory (the database is cached for reads in memory, and
unpacking the objects from the database is rather CPU-, if not
disk-intensive)

I see there are some 1TB "Near-line SAS" disks available, does anyone have
experience with those disks vs. regular SAS or SATA disks?

-Morten

(Re-sending this as well, as the xen-users spam filter seems a bit
overzealous)


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