5190/5194 Modular Tape Subsystem Manual

Glossary
5190/5194 Modular Tape Subsystem Manual—426878-002
Glossary-4
drive state
drive state. The online or offline state of a tape drive. A 5190 or 5194 tape drive can be in
one of four READY states or two NOT READY states.
DSC. See Dynamic System Configuration (DSC).
DSM/SCM. See Distributed Systems Management/Software Configuration Manager
(DSM/SCM).
Dynamic System Configuration (DSC). A utility used in D-series and earlier releases to
make online changes to the configuration of devices and controllers. Its interactive
utility is called the Configuration Utility Program (COUP). In G-series releases, similar
functions are performed by Subsystem Control Facility (SCF).
end-of-tape (EOT) mark. A data byte sequence that indicates the end of the space
available for data recording on a cartridge tape. This sequence appears more than 4.3
meters (169 inches) from the tape-to-hub junction.
EOT. See end-of-tape (EOT) mark.
fiber-optic plug-in card (F-PIC). A plug-in card (PIC) for the 6760 ServerNet device
adapter (ServerNet/DA) that uses a fiber-optic interface to connect a Compaq NonStop
Himalaya S-series system to external disk drives and to some tape drives that contain
a back-end board (BEB) that translates fiber-optic signals from the F-PIC into SCSI
commands and information for the tape drive. See also plug-in card (PIC)
and SCSI
plug-in card (S-PIC).
fiber-optic ServerNet addressable controller (F-SAC). A ServerNet addressable
controller (SAC) that is contained within a fiber-optic plug-in card (F-PIC).
field-replaceable unit (FRU). A unit that can be replaced in the field only by qualified
personnel trained by Compaq and cannot be replaced by customers. A unit is
classified as a FRU because of safety hazards such as weight, size, sharp edges, or
electrical potential; contractual agreements with suppliers; or national or international
standards. See also customer-replaceable unit (CRU)
.
file mark. See tape mark.
File Utility Program (FUP). A utility for the Compaq NonStop Himalaya range of servers
that performs a variety of operations on files, including copying, creating, duplicating,
renaming, and securing.
firmware. Code in memory that is necessary for the power-up initialization and
communication with a host or device. The software for components of the ServerNet
architecture (for example, an adapter) is called firmware. Some firmware for ServerNet
components is downloaded when the system or component is loaded.
F-PIC. See fiber-optic plug-in card (F-PIC).
FRU. See field-replaceable unit (FRU)