IBM System Storage TS3500, Introduction And Planning Manual

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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 at the
following web site: http://www.ibm.com/ibm/
terminology.
Numbers
2:1 or 3:1 compression
The relationship between the quantity of
data that can be stored with compression
as compared to the quantity of data that
can be stored without compression. In 2:1
compression, twice as much data can be
stored with compression as can be stored
without compression. In 3:1 compression,
three times as much data can be stored
with compression as can be stored
without compression.
2N Twice the amount of a system's electrical
power load. If the system has 2N power
supplies, then there are two power
supplies available for every load, which
means greater redundancy and
availability of electrical power. The
Enhanced Frame Control Assembly of the
TS3500 Tape Library offers a 2N power
design with no single point of failure or
single point of repair.
3584 Tape Library
See IBM System Storage TS3500 Tape
Library .
3588 Tape Drive
See IBM System Storage 3588 Tape Drive
Model F3A or IBM System Storage TS1030
Tape Drive Model F3B . Also known as the
Ultrium 3 Tape Drive .
3592 Tape Controller Model J70
See IBM TotalStorage 3592 Tape Controller
Model J70 .
3592 Tape Drive
See the following entries: IBM TotalStorage
3592 Tape Drive Model J1A ; IBM System
Storage TS1120 Tape Drive ; IBM System
Storage TS1130 Tape Drive ; IBM System
Storage TS1140 Tape Drive .
3593 Tape System
The IBM 3953 Tape Frame Model F05 and
the IBM 3953 Library Manager Model
L05.
A
A
Ampere.
AAP See authorized assembler program .
ac See alternating current .
accessible cartridge storage slots
Within the TS3500 Tape Library, units that
can contain tape cartridges and that are
recognizable to the library by both a
physical address (such as F01-C05-R19)
and a SCSI element (logical) address (such
as 1112(X'458'). Accessible cartridge
storage slots do not include I/O station
slots or the inaccessible slots that are
reserved for the diagnostic cartridges. The
quantity of accessible cartridge storage
slots per frame varies, depending on the
quantity of drives that are installed in the
frame.
accessor controller
The logic card for the cartridge accessor.
The accessor controller handles accessor
motion requests, including calibrations,
moves, and inventory updates. It also
provides centralized management for
other aspects of the entire library,
including configuration, insert and eject
operations, automatic drive cleaning, and
determination of element status.
ac line voltage
The input voltage (in volts) that is
required by the TS3500 Tape Library for
normal operation.
Activity screen
The primary screen on the touchscreen of
the TS3500 Tape Library. The Activity
screen gives the level of firmware in the
library, shows whether the library is
ready, not ready, or initializing, and tells
the quantity of tape cartridges currently
© Copyright IBM Corp. 2008, 2012
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