RAID levels | Function/Applications | Advantages/Disadvantages |
|
|
|
RAID Recovery | Function: | Advantages: |
| Identical (mirrored) data is | Provides high fault |
| stored on two drives. | tolerance. |
| Boosts the functionality of | Users can choose to mirror |
| RAID 1 with valuable | data continuously or on |
| features. | request. |
| Applications: | Data recovery is quick and |
| Any application that requires | easy. |
|
| |
| a simple data protection | Allows |
| method. | mirrored drive (with eSATA |
|
| or docking station HDD). |
|
| Enables easy migration to |
|
| |
|
| Disadvantages: |
|
| Only half of the total drive |
|
| capacity can be used for |
|
| storage. |
|
| Storage space may be |
|
| wasted if the capacities of |
|
| the primary and recovery |
|
| HDDs are different. |
RAID 5 | Function: |
| Distributes data across three |
| HDDs. If one HDD fails, |
| RAID 5 allows data to be |
| recovered from the other two |
| HDDs. |
| Applications: |
| A good choice for large |
| amounts of critical data. |
Advantages:
Data redundancy
Improved performance and capacity
High
Disadvantages:
During a RAID rebuild after a hard drive fails, system performance can be decreased.
RAID modes supported | 5 |
