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Glossary

TNSVU User’s Guide—528143-003

Glossary-17

Open Systems Interconnection Layer 2

Open Systems Interconnection Layer 2. The data-link control level of the Open Systems

Interconnection (OSI) model, composed of asynchronous or minimal line control

protocols, byte-oriented or character-oriented protocols, and bit-synchronous or

bit-oriented protocols. Data link protocols can be defined in terms of method of access

of data, link relationship of stations, error detection scheme, error recovery, message

formatting, logical half-duplex or full-duplex operation, code, and machine

transparency.

operating system. See HP NonStop™ operating system.

operational environment. The conditions under which your system performs. These

conditions include the devices and communications lines that are made active and the

system and application processes that are started at system startup.

OS. See HP NonStop™ operating system.

OSS. See Open System Services (OSS).

OSS environment. See Open System Services (OSS) environment.

OSS Monitor. See Open System Services (OSS) Monitor.

OSS process ID. In the Open System Services (OSS) environment, the unique identifier

that identifies a process during the lifetime of the process and during the lifetime of the

process group of that process. See also PID.

OSS signal. See Open System Services (OSS) signal.

OSS user ID. See HP NonStop™ operating system user ID.

pathname. In the Open System Services (OSS) file system and Network File System

(NFS), the string of characters that uniquely identifies a file within its file system. A

pathname can be either relative or absolute. See also ISO/IEC IS 9945-1:1990

(ANSI/IEEE Std. 1003.1-1990 or POSIX.1), Clause 2.2.2.57.

pathname component. See filename.

PIC. (See position-independent code (PIC).

PID. In the Open System Services (OSS) environment, a synonym for process ID. OSS

process ID is the preferred term in HP NonStop™ system publications.

In the Guardian environment, PID is sometimes used to mean either:

•

A Guardian process identifier such as the process ID

•

The cpu, pin value that is unique to a process within an Expand node (See HP

NonStop™ operating system user ID.)

PIN. See process identification number (PIN).

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Hp Integrity NonStop H-Series Bedienungsanleitung Seite 65