On 04/09/11 8:11 AM, Christopher Chan wrote: > On Saturday, April 09, 2011 10:47 PM, Drew wrote: >>> The key is the backplane, not the drives. You should be able to get u320 >>> speeds if you have enough u160 drives. >> Does five drives count? > I guess that depends on whether they can flood an u320 bus. If they are > 10k/15k rpm drives, I'd think so... Ummmm. say huh? if any one device on a SCSI channel is U160, the whole channel has to run no faster than U160, thats all she wrote. its a single bus not a 'star' like SAS or SATA.