Ok, 1. Motherboard Raid is often "Fake Raid" 2. In Gentoo the Software Raid fucntions for Linux are probably faster than your motherboard's 3. Having had and seen issues with mother board raid I'd suggest using the mdtools. Since there is a FAR LARGER support base; that way if somthing goes awry you'll have a far larger pool of knowledge to draw from.
When Considering Raid always look to see if you have a MB that has it's own XOR implemented in silicon, these are a little pricy but they are the "Engine" that speeds up the whole checksumming process. Server Motherboards and high end workstations will have integrated RAID controllers from repudible providers (LSI, Adaptec, AMI...) and even those break down and forget configuration's some times. If you are going to do a whole bunch of storage on the cheap the software raid is fine, and if you have a quad core you won't even notice the overhead. On Mon, Apr 27, 2009 at 11:35 AM, Alan McKinnon <alan.mckin...@gmail.com>wrote: > On Monday 27 April 2009 14:18:39 Yahya Mohammad wrote: > > Hi list, > > > > I'm setting up a new desktop machine with RAID 0. The motherboard I > > bought supports the so-called "Fake" RAID, which offloads most of the > > processing to the system CPU. What are the pros and cons of using this > > as opposed to pure software RAID? > > There are no pros that I have ever seen and plenty of cons. Notably - > performance sucks. > > You are almost always better off using software RAID. Big plus - you can > actually configure it to get a result closer to what you want as opposed to > what the firmware manufacturer wants you to have. > > > -- > alan dot mckinnon at gmail dot com > > -- Hazen Valliant-Saunders IT/IS Consultant (613) 355-5977
