Table of Contents
Advertisement
Glossary
This glossary defines terms and
abbreviations in this and other SL8500
library related publications.
This glossary defines terms and
abbreviations used in this publication.
A
aggregate backup and recovery support
(ABARS) A function that backs up a user-
defined related group of data sets, called an
aggregate, and recovers those data sets on
the same system or on a recovery system.
Automated Cartridge System (ACS) A
system that automatically mounts cartridges
into tape drives in response to requests from
host software.
B
back up To copy information for
safekeeping.
C
cache A block of memory that temporarily
collects and retains data that allows quicker
retrieval of frequently-used data to improve
overall system performance.
cartridge A protective container that
consists of magnetic tape on supply and
take-up reels.
control data set (CDS) The host software
component (HSC) database. This data set
contains all configuration and volume
information that the host software uses to
control the functions in an automated library.
TM0017 • Revision B
D
Data Facility Storage Management
Subsystem (DFSMS) An operating
environment that helps automate and
centralize the management of storage. To
manage storage, DFSMS provides the
storage administrator with control over data
class, storage class, management class,
storage group, and automatic class selection
routine definitions.
DFSMShsm A DFSMS functional
component or base element of z/OS that
provides functions for backing up and
recovering data, and managing space on
volumes in the storage hierarchy. See
Hierarchical Storage Management (HSM).
E
Expert Library Manager (ExLM) Software
that manages the contents of LSMs and
provides virtual tape management functions.
F
fast load Once a HandBot successfully
inserts a tape cartridge into a drive, it is
immediately available for the next operation
and does not wait until the drive reports that
the cartridge has been loaded.
H
Hierarchical Storage Management
(HSM) A data storage system that
automatically manages and distributes data
between high-cost and low-cost storage
devices.
149
Advertisement
Table of Contents
