Hi Mark.
Actually the SL4500 should be only ~30% more expensive (according to postings) then SuperMicro SC847, while having ~2x drive density.
Regards,
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).
You mean that a 2-node configuration should be faster/have better ROI then 2xSL4500 boxes?
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.
Interesting, any vendors/models you can advise? I do like high-density machines as they are more space efficient (per U) and should be more power efficient as the result, but you have a point there about the penalty.
Btw, how drastic would be loosing a single node / machine, with 3x replication?
Btw, how drastic would be loosing a single node / machine, with 3x replication?
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. :)
Actually the SL4500 should be only ~30% more expensive (according to postings) then SuperMicro SC847, while having ~2x drive density.
Regards,
Stas.
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