
Glossary ●176
firmware
A combination of hardware and software; software written onto read-
only memory (ROM).
format
See initialize.
G
GB
GigaByte. 1,024 MB. See also MB.
H
host
A computer that’s connected to a TCP/IP network. See also TCP/IP.
host bus adapter (HBA)
An adapter card that includes all of the I/O logic, software, and
processing to manage the transfer of information betw een the host and
the devices it’s connected to.
hot spare
A spare disk drive which will automatically replace a failed disk drive in
a logical drive.
hot-swap
Remove and replace a failed disk dri ve in a logical drive without
shutting down the server or disrupting activity on the logical drive.
I
initialize
Prepare a disk drive for reading and writing.
I/O
Input/Output. Data ent ering into or being extracted from a computer.
L
LAN
Local Are a N etw ork. A netw ork of inter c onnect ed workstations sharing
the resourc es of a single server, typically within the area of a small office
building.