NOTE: When the SATA controller is in RAID mode, it will only support up to 4 SATA port devices. Enabling a fifth SATA port device causes the computer to freeze. Removing the fifth SATA port device restores normal operation.
RAID 0
RAID 0 stripes, or distributes, data across both drives. This allows data, especially large files, to be read faster because data is read simultaneously from both drives. However, RAID 0 offers no fault tolerance, which means that if one drive fails, the entire array fails.
RAID 1
RAID 1 copies, or mirrors, identical data on two hard drives. If one hard drive fails, RAID 1 allows data to be recovered from the other hard drive.
RAID 5
RAID 5 distributes data across three hard drives. If one hard drive fails, RAID 5 allows data to be recovered from the other two hard drives.
Flexible data protection (Recovery)
Flexible data protection (Recovery) is a feature of Intel® Rapid Storage Technology software. Recovery enhances RAID 1 functionality with several features that make it easier for users to mirror data to a designated recovery drive. For example, Recovery allows users to determine how the recovery volume is updated, either continuously (the default) or on request. Recovery also enables docking and undocking of the computer if the second drive is in the docking station's bay.
RAID mode summary
The following table describes the functions, applications, and advantages and disadvantages of the supported RAID modes.
RAID levels | Function/Applications | Advantages/Disadvantages |
RAID 0 | Function: | |
| Data is distributed across | |
| both disk drives. | |
| Applications: | |
| ● | Image editing |
| ● | Video production |
| ● | |
Advantages:
Read performance is higher than that of a non- RAID hard drive.
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 hard drives are different (see HP SATA drive option kits on page 6).
RAID modes supported | 3 |