Glossary
362 Quantum Scalar i40 and Scalar i80 User’s Guide
C Cartridge A container that is a protective housing for storage media,
such as cartridges for tapes or optical disks.
Cleaning tape / cleaning cartridge A tape used to clean recording
heads and reading heads on a tape drive.
Cleaning slot The physical home where a cleaning tape or cartridge
resides.
COD (Capacity on Demand) A library feature that allows users to
have a large physical library, but only be licensed to use a subset
of its total capacity. Users pay only for what they are currently
using. License upgrades enable more capacity without causing a
system interruption.
Connectivity The method by which hardware devices or software
communicate with other hardware or software.
Control path The connection between a partition and host
application. The control path connection is made through a
designated tape drive. Only one tape drive can be selected as
the control path per partition.
Controller The PCB or system that translates computer data and
commands into a form suitable for use by the storage disks.
CRU (Customer Replaceable Unit) The smallest hardware component
that can be replaced at a customer installation by a customer.
D Default A value or setting that is selected by the hardware or software
unless specified otherwise by the user.
DHCP (Dynamic Host Configuration Protocol) A protocol for
assigning dynamic IP addresses to devices on a network. DHCP
supports a mix of static and dynamic IP addresses.
Diagnostic ticket A ticket that alerts service personnel and customers
of an issue with the library. Diagnostic tickets identify which
library components are most likely causing the issue. When
possible, a diagnostic ticket provides instructions for resolving
the issue.
Directory A file that contains a list of other files.
Directory
is short for
directory file
.
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