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RAID modes supported
The RAID modes supported by HP Business Notebook PCs include RAID 0, RAID 1, and Intel® Rapid
Recover Technology (RAID 1 enhanced) as described below. Each RAID mode requires two SATA
HDDs. This can be accomplished by inserting a second SATA hard drive into the Upgrade Bay or eSATA
port (if available) of the notebook PC, or in the SATA swappable bay of the HP Advanced Docking
Station (see
Devices supported on page 6). RAID 5 and RAID 10 are not supported.
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 the entire array fails if one drive fails.
RAID 1
RAID 1 copies, or mirrors, identical data on two HDDs. If one HDD fails, RAID 1 allows data to be
recovered from the other HDD.
Intel® Rapid Recover Technology
Intel Rapid Recover Technology (IRRT) is a feature of Intel® Matrix Storage Manager software. IRRT
enhances RAID 1 functionality with several features that make it easier for users to mirror data to a
designated recovery drive. For example, IRRT allows users to determine how the recovery volume is
updated, either continuously or on request. IRRT also enables docking and undocking of the computer
if the recovery drive is in the docking station bay.
RAID mode summary
The following table describes the function, applications, and the 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
●
Pre-press applications
Advantages:
Read performance is higher
than that of a non-RAID
HDD.
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 on page 6).
RAID 1 Function:
Identical (mirrored) data is
stored on two drives.
Advantages:
Provides high fault
tolerance.
RAID modes supported 3