[Beowulf] storage server hardware considerations
landman at scalableinformatics.com
Wed Jul 15 11:02:24 PDT 2009
Orion Poplawski wrote:
>> Rather than looking at the solution, could you describe the problem you
>> need to solve?
> I've been building cheap, big, slow storage servers for our use.
> However, some of our users are starting to need higher performance IO.
> We still don't have a lot of money, but I'd like to provide something
> with a modest amount of storage (at least 500GB) that can at least
> handle full GigE, perhaps up to DDR Infiniband for future expansion,
> without breaking the bank.
You can saturate GbE fairly easily (we can). A good RAID10 could get
you pretty far here. 500GB is quite small though. Likely you will
spend more in chassis and other stuff than in disk.
Using our DeltaV as a guide, a 2U boxen with 6TB (12x 500 GB drives) and
4 GbE ports in a RAID10 provides about 250-350 MB/s for NFS.
> We have only about 10 compute machines so we're pretty small.
One thing you can do is channel bond 2-4 GbE ports on the server, and
then you can at least reduce network port contention there.
Joseph Landman, Ph.D
Founder and CEO
email: landman at scalableinformatics.com
web : http://scalableinformatics.com
phone: +1 734 786 8423 x121
fax : +1 866 888 3112
cell : +1 734 612 4615
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