HP EliteBook 2170p Notebook PC - Manual (Page 10)

3 Operating systems and devices
supported
Operating systems supported
HP RAID supports the Windows 8 operating system.
Devices supported
This section describes the devices supported for RAID migration, including the SATA drives,
computers, and docking station. Device support is summarized in the following table and then
explained in more detail below the table. External USB SATA drives connected to the computer or
docking station cannot be used for migrating to RAID.
Primary and Upgrade Bay
SATA hard drives in the
computer Primary and secondary
bay SATA hard drives in
the computer Docking station hard drive
or eSATA hard drive
attached to computer
RAID 0 Yes Yes No
RAID 1 Yes Yes No
Recovery Yes Yes Yes
RAID 5 No Yes No
HP SATA drive option kits
HP offers SATA drive option kits for the computer Upgrade Bay and the docking station's SATA-
swappable bay to support RAID migration. For optimal RAID performance, it is recommended that
both drives have the same speed. However, supported HP Business computers allow drives with
different speeds to be used in a RAID volume.
Drives of different capacities are also supported for RAID migration, as long as the capacity of the
secondary (recovery) drive is equal to or greater than that of the primary drive. For example, if the
primary drive is 200 GB, then at least a 200-GB drive is required in the Upgrade Bay to create a RAID
volume. If the capacity of the secondary drive is larger than that of the primary drive, the excess
capacity of the secondary (or third) drive will not be accessible. If, for example, the primary drive is
160 GB and the secondary drive is 250 GB, only 160 GB of the secondary drive will be usable in a
RAID configuration. Therefore, for optimal use, it is recommended that both drives have the same
capacity.
eSATA hard drives (select models only)
External SATA, or eSATA, is an external interface that allows a SATA drive to achieve data transfer
speeds up to 6 times that of a SATA drive using a standard USB 2.0 interface. The following
illustration shows a supported computer with a primary hard drive (1) and an eSATA drive (2)
connected to the eSATA port (select models only) to allow Recovery. Regarding the capacity of the
6 Chapter 3 Operating systems and devices supported