RAID (Redundant Array of Inexpensive Disks) is the combining of multiple disks to mimic a single hardware storage device. Depending on the type, or “level”, RAID increases performance, capacity, and fault tolerance in some combination. So, what is RAID 50?<\/p>\n
Fifty is the new Five, okay, the new Five-O, or to be slightly more accurate–the new 0-5 as in RAID 0<\/a> striping across nested RAID 5<\/a> sub-arrays. Yes, the speedy but dangerous RAID 0 has found its margin of safety through the use of RAID 5 members rather than individual disks.<\/p>\n RAID 0 stripes data across multiple disks, or in this case, multiple nodes or sub-arrays. The nested RAID 5 arrays add fault tolerance by writing one block of parity data for each block of data. Parity blocks are distributed across all the disks in such a way that they never reside on the disk that contains the data they’re protecting.<\/p>\nWhat is Parity Info?<\/h2>\n