What is RAID 1?

What is RAID 1?

RAID 1 is a level of the data storage technology RAID (Redundant Array of Independent Disk). It was first introduced in the 1980s as Redundant Array of Inexpensive Disks, highlighting its comparative cheapness.

What is RAID 1 Level 1 mirroring?

RAID level 1 – Mirroring. Data are stored twice by writing them to both the data drive (or set of data drives) and a mirror drive (or set of drives). If a drive fails, the controller uses either the data drive or the mirror drive for data recovery and continues operation. You need at least 2 drives for a RAID 1 array.

What is RAID 0 level 0 striping?

RAID level 0 – Striping. In a RAID 0 system data are split up into blocks that get written across all the drives in the array. By using multiple disks (at least 2) at the same time, this offers superior I/O performance.

What are the different types of RAID levels?

RAID. 1 RAID level 0 – Striping. In a RAID 0 system data are split up into blocks that get written across all the drives in the array. By using multiple disks 2 RAID level 1 – Mirroring. 3 RAID level 5 – Striping with parity. 4 RAID level 6 – Striping with double parity. 5 RAID level 10 – combining RAID 1 & RAID 0.