RAID levels | Function/Applications | Advantages/Disadvantages |
|
|
|
RAID 0 | Function: | Advantages: |
| Data is distributed across | Read performance is |
| both disk drives. | higher than that of a non- |
| Applications: | RAID HDD. |
|
|
●Image editing
●Video production
●
Total storage capacity is doubled.
Disadvantages:
The entire array fails if one drive fails; data cannot be recovered.
Storage space may be wasted if the capacities of the primary and recovery HDDs are different (see HP SATA drive option kits
RAID 1 | Function: | Advantages: | |
| Identical (mirrored) data is | Provides high fault | |
| stored on two drives. | tolerance. | |
| Applications: | Disadvantages: | |
| ● | Accounting | Only half of the total drive |
| ● | Payroll | capacity can be used for |
| storage. | ||
| ● | Financial | Storage space may be |
|
|
| wasted if the capacities of |
the primary and recovery HDDs are different (see HP SATA drive option kits
4 Chapter 2 RAID technology overview