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station. Two grippers (Gripper 1 and
Gripper 2) are on the pivot assembly of
the accessor. One gripper can grip a
single cartridge.
cartridge inventory time
The amount of time that is required for
the TS4500 tape library to determine
whether each cartridge storage slot in the
library is empty or full.
cartridge manual rewind tool
A device that can be fitted into the reel of
a cartridge and used to rewind tape into
or out of the cartridge.
cartridge memory
See
LTO cartridge memory
.
cartridge move time
The time that is required for a cartridge
accessor to pick a cartridge from a slot (or
drive), move the cartridge to a drive (or
slot), pivot (if required), and insert the
cartridge into the drive (or slot).
cartridge storage slot
One of several containers that are
mounted inside the frames of the TS4500
tape library and are used to store tape
cartridges. See also
HD slot
.
caster
One of four wheels that are mounted in
swivel frames and used to support the
weight of the library.
CETool
Used with the TS3500 tape library, CETool
is a software program that is used by IBM
Service personnel (also known as
customer engineers or CEs) to update
library and drive firmware, configure Call
Home, collect library and drive logs,
backup and restore the configuration for
non-volatile random access memory
(NVRAM), and perform other
service-related tasks.
cell top cap
On each column of the storage slots
within the TS4500 tape library, a plastic
component to which a bar code label
holder can be attached. The library uses
the bar code label to establish the
boundary of a logical library.
circuit board
A thin plate on which chips and other
electronic components are placed.
Computers consist of one or more boards,
often called cards, or adapters.
cleaning cartridge
A tape cartridge that is used to clean the
heads of a tape drive. Contrast with
data
cartridge
.
clearance
The distance by which one object clears
another or the clear space between them.
compression
The process of eliminating gaps, empty
fields, redundancies, and unnecessary
data to shorten the length of records or
blocks.
configure
To describe to a system the devices,
optional features, and programs that are
installed on the system.
controller
A device that coordinates and controls the
operation of one or more input/output
devices (such as sensors and actuators),
and synchronizes the operation of such
devices with the operation of the system
as a whole.
control path
(1) Designated by the operator of the
TS4500 tape library, a logical path into the
library through which a server sends
standard SCSI Medium Changer
commands to control a specific logical
library.
(2) A tape drive that is designated by the
operator of the TS4500 tape library to
manage communication to and from a
server and the library.
control path failover
In the event of a command failure, an
optional feature of the TS4500 tape library
that enables the host device driver to
resend the command to an alternate
control path for the same logical library.
The device driver initiates error recovery
and continues the operation on the
alternate control path without
interrupting the application.
current
The quantity of charge per unit of time.
Measured in amperes (amps, A).
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IBM TS4500: Introduction and Planning Guide
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