Figure 2.1 RAID 0 Array
Segment 1 | Segment 2 |
Segment 3 | Segment 4 |
Segment 5 | Segment 6 |
Segment 7 | Segment 8 |
2.2RAID 1
RAID 1 (Figure 2.2) duplicates all data from one drive to a second drive. RAID 1 provides complete data redundancy, but at the cost of doubling the required data storage capacity.
Uses | Databases or any other mission critical environment that requires |
| fault tolerance. |
Strong Points | Provides complete data redundancy. RAID 1 is ideal for any |
| application that requires fault tolerance. |
Weak Points | Requires twice as many hard drives. Performance is impaired during |
| drive rebuilds. |
Drives | Two |
Figure 2.2 RAID 1 Array
Segment 1 | Segment 1 Duplicated |
Segment 2 | Segment 2 Duplicated |
Segment 3 | Segment 3 Duplicated |
Segment 4 | Segment 4 Duplicated |
RAID Levels |