| TABLE 1: Relative RAID Performance Guide |
| Disk I/O Characteristics (1st is fastest, 2nd is second fastest, 3rd is slowest) |
| Fault Tolerance Level Provided |
RAID Level |
Random Read |
Random Write |
Sequential Read |
Sequential Write |
| None |
Stripe (0) |
1st |
1st |
1st |
1st |
| Capable of surviving a single disk failure without loss of data | Mirror (1) | 2nd
2nd | 2nd (up to two times as slow as one hard disk or a RAID 0 stripe) | 3rd | 2nd (up to two times as slow as one hard disk or a RAID 0 stripe) |
| Capable of surviving a single disk failure without loss of data |
Stripe w/parity (5) |
1st | 3rd (up to four times as slow as other RAID options | 1st | 3rd (up to four times as slow as other RAID options |