HW raid 0 in SW raid 1

Software implementations, especially LVM-like, can allow RAID arrays to be created from partitions rather than entire physical drives. For instance, Novell NetWare allows you to divide an odd number of disks into two partitions per disk, mirror partitions across disks and stripe a volume across the mirrored partitions to emulate a RAID 1E configuration. Using partitions in this way also allows mixing reliability levels on the same set of disks. For example, one could have a very robust RAID-1 partition for important files, and a less robust RAID-5 or RAID-0 partition for less important data. (Intel calls this Intel Matrix RAID.) Using two partitions on the same drive in the same RAID array is, however, dangerous. If, for example, a RAID 5 array is composed of four drives 250 + 250 + 250 + 500 GB, with a 500 GB drive split into two 250 GB partitions, a failure of this drive will remove two partitions from the array, causing all of the data held on it to be lost.

Because these controllers often try to give the impression of being hardware RAID controllers, they can be known as Fake RAID. They do actually implement genuine RAID; the only faking is that they do it in software.


sicer pa lahko za backup uporabis kar navaden windows backup in bekapas vse na tisto particijo. ali periodicno bekapas s kaksnim norton ghost, ker ti onaj verjetno ne bo hotel sistema.
windows ima tudi neko moznost raida, poglej se na ms support (dynamic disks). ni pa to najpametneje.

Dynamic disk @ Wikipedia