It's a set of disks grouped together as one logical drive, in which the data is striped over the disks and a parity file representing the data is additionally stored on another drive. Were a drive to fail you could replace it with no data loss, and it's much faster to read and write to than a single drive.
It's a set of disks grouped together as one logical drive, in which the data is striped over the disks and a parity file representing the data is additionally stored on another drive. Were a drive to fail you could replace it with no data loss, and it's much faster to read and write to than a single drive.