RAID Level Definitions


RAID = Redundant Array of Inexpensive Disks

leveldescription
0Striped disk array (mnemonic: "ZERO" fault tolerance)
1Mirroring / duplexing / shadowing (mnemonic: "ONE" disk from two or more)
5Independent data disks with distributed parity blocks
0+1High data transfer performance
...and just to be closer to complete...
2Hamming Code ECC
3Parallel transfer with parity
4Independent Data disks with shared parity disk
6Independent Data disks with two independent parity schemes
7Optimized Asynchrony for High I/O and Data Transfer Rates
10Very High Reliability combined with High Performance
53High I/O Rates and Data Transfer Performance (s/b RAID 0+3)


source: ACNC
keywords: hardware,storage
date: 01/11/2005