Hi Stas,
The SL4500 series looks like it should be a good option for large
deployments, though you may want to consider going with the 2-node
configuration with 25 drives each. The drive density is a bit lower but
you'll have a better CPU/drive ratio and can get away with much cheaper
processors (dual E5-2620s should be sufficient for 25 drives).
It's important to keep in mind that unless you are talking about
deploying multiple racks of OSDs, you are likely better off with smaller
nodes with fewer drives (say 2U 12 drive boxes). That helps keep the
penalty for losing a node from being too dramatic.
Both the SL4500 and the Dell C8000 allow you to have configurations with
multiple nodes in 1 chassis with fewer drives, so they are kind of an
interesting compromise between high density and keeping the
drives-per-node count lower. Granted, they both tend to be more
expensive than supermicro gear, so like always it's a giant balancing
act. :)
Mark
On 03/17/2013 04:31 PM, Stas Oskin wrote:
Hi.
First of all, nice to meet you, and thanks for the great software!
I've thoroughly read the benchmarks on the SuperMicro hardware with and
without SSD combinations, and wondered if there were any tests done on
HP file server.
According to this article:
http://www.theregister.co.uk/2012/11/15/hp_proliant_sl4500_big_data_servers/
This server in single node configuration is ideal for clustered systems
(OpenStack in this case), holds 60 3.5 drives and can push up to 1M
IOPS. Being priced as $7,643, it seems to make a serious competition to
SuperMicro's hardware.
Any idea what throughput can be achieved on this machine with Ceph?
Regards.
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