> If you're looking at port multipliers, you need to find PCI-Express > modules if you want them to be fast. The PCI ones are gonna be very > slow when you have more than 2 disks per card. I'm definitely going to use the PCIX/PCIe slots for the Host Adapter. What I'm wondering is if I use a HBA and Port Multiplier that support FIS based switching, say a Sil 3124 & 3726, how much of a loss in data transfer rate can I expect from the RAID array built off the PM as opposed to each disk plugged in separately? An example configuration I'm looking at is a Sil3124 4 port HBA with three of the ports having Sil3726 5to1 PMs attached. Each PM then has four disks hung off the PM. If I create a RAID5 array for example on each PM, what sort of speed degradation would I be looking at compared to making a RAID5 off just the 3124? -- Drew "Nothing in life is to be feared. It is only to be understood." --Marie Curie -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
