First all: sorry for my english :-P >With four SATA drives on a new mobo > with an AHCI chip you'd see over 400 MB/s, about 4 times that of the PCI > 6 drive solution. You'd have one drive less worth of capacity. 400Mb/s is because the integrated controller of mobo reach that speed? So is it a raid hardware (no need mdadm)? What happen if the controller goes break? >additionally, in the event > of a disk failure, rebuilding a 6x1TB RAID5/6 array will take forever > and a day. a nightmare... very thanks for your reasoning.. I don't have enought experience about raid and friends! Pol -- 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