User's Manual

Glossary 87
Glossary
BitLocker
A full disk encryption feature included with the Microsoft
®
Windows Server
®
2008 operating system that encrypts entire volumes.
Controller
A chip that controls the transfer of data between the microprocessor and memory
or between the microprocessor and a peripheral device, such as a disk drive or the
keyboard. RAID controllers perform RAID functions, such as striping and
mirroring to provide data protection.
disk pool
A logical grouping of disks attached to a RAID controller on which one or more
virtual disks can be created.
DUP
Dell Update Package. A self-contained executable in a standard package format.
Each Update Package is designed to update a single software component
on your system.
HII
Human Interface Infrastructure. HII is a UEFI-standard method for viewing and
setting a device's configuration.
hot spare
A physical disk that is available to aid in recovery of a logical drive.
logical drive
See virtual disk .
physical disk
A non-volatile, randomly addressable device for storing data. Physical disks are
rewritable and commonly referred to as disk drives.
RACADM
A command-line utility that provides a scriptable interface that allows you to
locally or remotely configure a remote access controller (RAC).
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