> HW vs SW RAID: Kind of a religious question. HW has some advantages when using > RAID-5 or RAID-6 (less CPU load). When using RAID-0 or RAID-1 there should > not be any difference performance wise. HW RAID gives you some advantages in > terms of handling, i.e. hotplugging of discs, nice administration console, > RAID-10 during install ;-), etc. It's up to you to decide whether it is worth > the money. Plus you need to find a controller that is well supported in > Linux. Hardware raid that comes with bbu write caches normally have a speed boost in addition to the extra data safety too. > > P.p.s. Creating one swap partition on each disc is correct, because swapping > to RAID-0 is useless. Only if you decide to use RAID-1 for the whole disc you > should also swap to RAID-1. > creating one swap partition on each disc is equivalent to swapping to raid 0...linux automatically strips/spreads swap data to all available swap areas.