On Fri, Feb 8, 2013 at 12:36 AM, Jonathan Aquilina <[email protected]> wrote: > What kind of ssd's are we talking about here I have seen OCS has pci-express > ones or are we talking about standard sata SSD's. Is there that much of a > performance difference between pci-e and sata based ssd's in terms of > performance be it caching or otherwise.
Yes, latency and bandwidth per device. The PCI-E SSD cards can do more than 2GB/s, some claim nearly 3GB/s and the latency of the bus is going to be microsecond or sub-microsecond. So you get higher IOPS per device. _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
