IBM DCS3860, Инструкция по установке, использованию и обслуживанию

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Glossary
This glossary defines the special terms,
abbreviations, and acronyms used in this
publication and other related publications. If you
do not find the term you are looking for, see the
IBM Glossary of Computing Terms located at the
following Web site:
www.ibm.com/ibm/terminology
The following cross-reference conventions are
used in this glossary:
See Refers you to (a) a term that is the
expanded form of an abbreviation or
acronym, or (b) a synonym or more
preferred term.
See also
Refers you to a related term.
Abstract Windowing Toolkit (AWT)
A Java
™
graphical user interface (GUI).
accelerated graphics port (AGP)
A bus specification that gives low-cost 3D
graphics cards faster access to main
memory on personal computers than the
usual peripheral component interconnect
(PCI) bus. AGP reduces the overall cost of
creating high-end graphics systems by
using existing system memory.
access volume
A special logical drive that allows the
host-agent to communicate with the
controllers in the storage system.
adapter
A printed circuit assembly that transmits
user data input/output (I/O) between the
internal bus of the host system and the
external fibre-channel (FC) link and vice
versa. Also called an I/O adapter, host
adapter, or FC adapter.
advanced technology (AT) bus architecture
A bus standard for IBM compatibles. It
extends the XT bus architecture to 16 bits
and also allows for bus mastering,
although only the first 16 MB of main
memory are available for direct access.
agent A server program that receives virtual
connections from the network manager
(the client program) in a Simple Network
Management Protocol-Transmission
Control Protocol/Internet Protocol
(SNMP-TCP/IP) network-managing
environment.
AGP See accelerated graphics port .
AL_PA
See arbitrated loop physical address .
arbitrated loop
One of three existing fibre-channel
topologies, in which 2 - 126 ports are
interconnected serially in a single loop
circuit. Access to the Fibre Channel
Arbitrated Loop (FC-AL) is controlled by
an arbitration scheme. The FC-AL
topology supports all classes of service
and guarantees in-order delivery of FC
frames when the originator and responder
are on the same FC-AL. The default
topology for the disk array is arbitrated
loop. An arbitrated loop is sometimes
referred to as a Stealth Mode.
arbitrated loop physical address (AL_PA)
An 8-bit value that is used to uniquely
identify an individual port within a loop.
A loop can have one or more AL_PAs.
array A collection of fibre-channel or SATA hard
drives that are logically grouped together.
All the drives in the array are assigned
the same RAID level. An array is
sometimes referred to as a "RAID set." See
also
redundant array of independent disks
(RAID) , RAID level .
AT
See advanced technology (AT) bus
architecture .
ATA See AT-attached .
AT-attached
Peripheral devices that are compatible
with the original IBM AT computer
standard in which signals on a 40-pin
AT-attached (ATA) ribbon cable followed
the timings and constraints of the
Industry Standard Architecture (ISA)
system bus on the IBM PC AT computer.
Equivalent to integrated drive electronics
(IDE).
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