> Do the machines have built in controller in the motherboard, > or do they have a pci-e card that's hosting the disks?
We shall probably use a few of the MegaRAID 9280 controllers in passthrough mode. These are capable of handling 2 or 3 GB/s. It depends on what the vendor supports really. > > From those pci-e cards there is plenty of benchmarks around, and > basically > they all struggle to get nearby 1GB/s bandwidth. > > From the motherboards i see 0 benchmarks putting disks on them and > measuring aggregated bandwidth. > > Which chip is on the motherboard doing that and how many disks can it > host? > > On Aug 27, 2012, at 3:55 PM, hol...@th.physik.uni-frankfurt.de wrote: > >> >>> So my simple question would be: is this better with the built in raid >>> controllers that most motherboards have as they can use >>> the fast 2.5Ghz Xeon cpu's? >> >> Im not going to be doing any hardware RAID. ZFS does everything in >> software. >> >> >> >> >> > > _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
