IBM DCS3860, Installation, User'S, And Maintenance Manual

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auto-volume transfer/auto-disk transfer
(AVT/ADT)
A function that provides automatic
failover in case of controller failure on a
storage system.
AVT/ADT
See auto-volume transfer/auto-disk transfer .
AWT See Abstract Windowing Toolkit .
basic input/output system (BIOS)
The personal computer code that controls
basic hardware operations, such as
interactions with diskette drives, hard
disk drives, and the keyboard.
BIOS See basic input/output system .
BOOTP
See bootstrap protocol .
bootstrap protocol (BOOTP)
In Transmission Control Protocol/Internet
Protocol (TCP/IP) networking, an
alternative protocol by which a diskless
machine can obtain its Internet Protocol
(IP) address and such configuration
information as IP addresses of various
servers from a BOOTP server.
bridge A storage area network (SAN) device that
provides physical and transport
conversion, such as fibre channel to small
computer system interface (SCSI) bridge.
bridge group
A bridge and the collection of devices
connected to it.
broadcast
The simultaneous transmission of data to
more than one destination.
cathode ray tube (CRT)
A display device in which controlled
electron beams are used to display
alphanumeric or graphical data on an
electroluminescent screen.
client A computer system or process that
requests a service of another computer
system or process that is typically referred
to as a server. Multiple clients can share
access to a common server.
command
A statement used to initiate an action or
start a service. A command consists of the
command name abbreviation, and its
parameters and flags if applicable. A
command can be issued by typing it on a
command line or selecting it from a
menu.
community string
The name of a community contained in
each Simple Network Management
Protocol (SNMP) message.
concurrent download
A method of downloading and installing
firmware that does not require the user to
stop I/O to the controllers during the
process.
CRC See cyclic redundancy check .
CRT See cathode ray tube .
CRU See customer replaceable unit .
customer replaceable unit (CRU)
An assembly or part that a customer can
replace in its entirety when any of its
components fail. Contrast with
field
replaceable unit (FRU) .
cyclic redundancy check (CRC)
(1) A redundancy check in which the
check key is generated by a cyclic
algorithm. (2) An error detection
technique performed at both the sending
and receiving stations.
dac See disk array controller .
dar See disk array router .
DASD
See direct access storage device .
data striping
See striping .
default host group
A logical collection of discovered host
ports, defined host computers, and
defined host groups in the
storage-partition topology that fulfill the
following requirements:
v Are not involved in specific logical
drive-to-LUN mappings
v
Share access to logical drives with
default logical drive-to-LUN mappings
device type
Identifier used to place devices in the
physical map, such as the switch, hub, or
storage.
DHCP See Dynamic Host Configuration Protocol .
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IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide