On Montag 27 April 2009, Andrei Susnea wrote: > Neil Bothwick wrote: > > On Mon, 27 Apr 2009 16:18:39 +0400, Yahya Mohammad wrote: > >> 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? > > > > The advantage of FakeRAID is that you get to depend on a Windows-only > > driver that only works with your motherboard and will prevent the RAID > > working if the motherboard files and you try to connect the drives to a > > different system. For some reason,this gives Windows users a warm, fuzzy > > feeling. > > Maybe you want pure hardware raid that's a pci(-e) slot that has a chip > doing all the parity calculations plus a battery keeping data that > didn't manage to write in case of a power failure. That's the best option. > For a mb in order to have fake raid capabilities from my understanding > it has to have a raid chip itself but still most of the calculation is > done by the CPU. > Software raid can be done OS dependant... and you don't need any > hardware or chips for that, it's a form of OS fooling itself instead of > the MB fooling the OS (fake one). > > From my experience with fake raid 0 on 2 hdd's the speeds would be very > nice when talking about small files, but for files with 1gb or more the > writing speed would decrease as the parity calculations get more > complicated.
there is no parity with raid 0.
