NonStop S-Series Hardware Installation and FastPath Guide (G06.26+)

Glossary
HP NonStop S-Series Hardware Installation and FastPath Guide—529876-001
Glossary-10
breakpoint
breakpoint. An object code location at which execution will be suspended so that you can
interactively examine and modify the process state. With symbolic debuggers,
breakpoints are usually at source line or statement boundaries.
In TNS/R native object code, breakpoints can be at any MIPS RISC instruction within a
statement. In a TNS object file that has not been accelerated, breakpoints can be at
any TNS instruction location. In a TNS object file that has been accelerated,
breakpoints can be only at certain TNS instruction locations (see memory-exact point),
not at arbitrary instructions. Some source statement boundaries are not available.
However, breakpoints can be placed at any instruction in the accelerated code.
bridge rectifier. A full-wave rectifier with four elements, as in a bridge circuit. Alternating
voltage is applied to one pair of opposite junctions, and direct voltage is obtained from
the other pair of junctions.
BSD. Berkeley Software Distribution.
built configuration. A configuration revision for which a system image and activation
package have been created.
built-in command. In the Open System Services (OSS) environment, a command that is
implemented within the /bin/sh file. Some built-in commands are also available as
separately executable files.
bypass mechanism. Equipment that permits switching from one power source to another.
For example, a bypass mechanism on an uninterruptible power supply (UPS) would
switch to an alternative power source (such as a standby power generator or
commercial utility source) when maintenance must be performed on the UPS.
byte-synchronous. A type of Open Systems Interconnection (OSI) Layer-2 protocol that
uses synchronous transmission techniques and requires a character code to define
terminal and line control sequences. Data is always transmitted in a block.
cabinet. The rack, front and back doors, side panels (if any), and PDUs. Cabinets contain
enclosures and other system components. A cabinet that can contain multiple
enclosures is also called a modular cabinet.
cable channel. A cable management conduit that protects the cables that run between two
HP NonStop™ S-series system enclosures in a double-high stack. Each system
enclosure has two cable channels running vertically on its service side: one on the
left-hand side of the enclosure, and one on the right-hand side of the enclosure.
cable guidepost. A cable management rod that routes cables exiting an HP NonStop™
S-series upper enclosure in a double-high stack to prevent the cables from hanging
down in front of the customer-replaceable units (CRUs) in the base enclosure. A cable
guidepost extends from the base of each cable channel.
cable support. A piece of cable management hardware that secures system cables. The
cable support attaches to the service side of a system enclosure near the bottom of the