HP NonStop G-Series - Manual (Page 419)

Glossary
Guardian User’s Guide — 425266-001
Glossary -3
compatibility distributor ($Z0)
compatibility distributor ($Z0) . An EMS distributor process that allows downward
compatibility with the operator process that existed previously. The compatibility
distributor sends operator messages to a console device during system load.
configuration. (1) The arrangement of cabinets, system components, and peripheral devices
into a working unit. (2) The definition or alteration of characteristics of an object.
configuration management. The process of configuring the production system hardware and
software to adapt to changes. One of the operations disciplines in the operations
management model. See
operations management model (OM model).
connection. (1) The path between two protocol modules that provides reliable stream
delivery service. (2) For the Compaq Tandem Service Management (TSM) software
package, the logical link established between the TSM client software on a workstation
and the TSM server software on a NonStop™ Kernel system after a logon sequence has
been performed. There are two types of logical connections: service connections and
low-level links.
console message. See operator message.
consumer distributor . An EMS distributor process that returns selected event messages to
management applications upon request. The consumer distributor is used by applications
provided by Compaq and by users to read the EMS log file (or alternate log files) and all
or specific event messages, depending on filter specifications loaded to the consumer
distributor process. The application can take appropriate action, if necessary, in response
to an important event. The TSM EMS Event Viewer application, provided by Compaq,
uses the consumer distributor.
controller . (1) A device, sometimes a logic board containing computer chips, consisting of
hardware and software that manage a computer function such as disk operations or
communications. (2) The access paths from a processor to a controller. On NonStop™
Kernel systems, each controller is dual-ported, meaning that it is connected to two
separate processors and that it has two access paths, one to each of the processors to
which it is connected.
DCOM. See Disk Compression Program (DCOM) .
DEFINE. A named set of attributes and values that allows you to specify information for a
process before you start the process.
define process library. A set of TACL routines that allow you to run background server
processes so that management applications can send commands to a number of
subsystems without the overhead of creating a new server process for each command.
device. A logical or physical entity that can be specifically and uniquely identified and with
which a processor can communicate. Examples of devices are printers, disks (volumes),
disk drives, tape drives, controllers, processors, and terminals