RAID level 1RAID level 1 refers to disk mirroring with block striping.

StripingData striping consists of splitting the bits of each byte across multiple disks; such striping is called bitlevel striping.

RAIDRedundant Array of Inexpensive Disks.

Both a and bMirroring without striping can also be used with arrays of disks, to give the appearance of a single large, reliable disk.

Block level strippingBlock-level striping stripes blocks across multiple disks. It treats the array of disks as a single large disk, and it gives blocks logical numbers.

0+1Mirroring without striping can also be used with arrays of disks, to give the appearance of a single large, reliable disk.

Block interleaved distributed parityIn level 5, all disks can participate in satisfying read requests, unlike RAID level 4, where the parity disk cannot participate, so level 5 increases the total number of requests that can be met in a given amount of time.

Hot swapping reduces the mean time to repair, since replacement of a disk does not have to wait until a time when the system can be shut down.

In level 5, all disks can participate in satisfying read requests, unlike RAID level 4, where the parity disk cannot participate, so level 5 increases the total number of requests that can be met in a given amount of time.

RAID level 1 refers to disk mirroring with block striping.