Kirk Bocek wrote:
3Ware's site advertises 300MB/Sec writes using 8 disks on the PCI Express version of this card (the 9580 I think.) I'm guessing 4x PCI Express has more bandwidth but 133Mhz 64-bit PCI-X is no slouch. The only two things I need to change are to put the disks in 3GB/Sec SATA mode (they're in 1.5GB/Sec mode right now) and to enable memory interleaving on the motherboard (I only have two sticks of memory, this M/B needs 4 for interleaving.) But I don't think these things should drop me down to the write performance of a single IDE disk.
Has somebody made experience with PCI-X-133MHz and PCI-X-66MHz? With my board there's not much difference. I even have the feeling, that driving a 9550SXU-4LP at PCI-X-66MHz is a bit faster than at 133. At least bonnie++ gives me slightly faster values @ 66.
Does anyone have any suggestions on improving write performance?
see above. :)
TIA - Michael