RAID 10

Uses

Strong Points

Weak Points

Drives

RAID 10 is a combination of RAID 0 and RAID 1. RAID 10 has mirrored drives. RAID 10 breaks up data into smaller blocks, and then stripes the blocks of data to each RAID 1 raid set. Each RAID 1 raid set then duplicates its data to its other drive. The size of each block is determined by the stripe size parameter, which is set during the creation of the RAID set. RAID 10 can sustain one to four drive failures while maintaining data integrity if each failed disk is in a different RAID 1 array.

RAID 10 works best for data storage that must have 100% redundancy of mirrored arrays and that also needs the enhanced I/O performance of RAID 0 (striped arrays). RAID 10 works well for medium-sized databases or any environment that requires a higher degree of fault tolerance and moderate to medium capacity.

RAID 10 provides both high data transfer rates and complete data redundancy.

RAID 10 requires twice as many drives as all other RAID levels except RAID 1.

2n, where n is greater than 1.

26ADAC Ultra2 S466 Hardware Guide