Introduction to NonStop Operations Management

Introduction to NonStop Operations Management–125507
Glossary-1
Glossary
access-control list (ACL). A Safeguard facility that allows you to restrict access to system
objects.
ACL. See access-control list (ACL).
alias. When using TACL, an alias is a name that stands for a command. When using DNS, an
alias is a name that stands for a network component. Aliases simplify operations tasks.
When using Safeguard, an alias is an alternate name that can be assigned to a user for
purposes of logging on to the system.
Alliance program. A program that Tandem has developed with third parties to augment
Tandem offerings. Alliance partners offer consulting services, products, and application
development services.
answerback string. A set of characters that the terminal sends in answer to a computer
request. Answerback strings are useful for controlling dial-up access.
API. See application programming interface (API).
application programming interface (API). The means by which a program within an
application gains access to a set of services. For example, an API might consist of a set
of procedure calls that provide a workstation application with a standard interface for
communicating with a Tandem NonStop system.
audit dump. A copy of a NonStop TM/MP audit-trail file written to a tape or disk volume.
audit-dump process. A NonStop TM/MP process for automatically writing to tape or disk a
copy of an audit-trail file that has become full.
audit trail. A series of audit-trail files.
availability. Tandem is using this term to describe end-user availability. End-user availability
is the amount of time an application running on a Tandem system can be used effectively
by a user of that application. See also planned outage, unplanned outage, and outage
minutes.
BACKCOPY. A utility program that allows you to duplicate tapes made with the BACKUP
utility. With BACKCOPY, you can create up to two duplicate tapes for archiving,
distribution, or disaster recovery.
backout process. A NonStop TM/MP process that restores a database to its original state
when a transaction aborts.
BACKUP. A utility program that copies disk files onto magnetic tape.
baseline security. The minimum level of security your organization is committed to
providing.