HP Integrity NonStop H-Series - Manual (Page 65)

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) .