Open System Services Management and Operations Guide (G06.29+, H06.07+)

Glossary
Open System Services Management and Operations Guide—527191-005
Glossary-3
free list
In some UNIX and NFS implementations, the term “file system” is used to mean the
same thing as “fileset.” That is, a file system is a logical grouping of files that, except
for the root of the file system, can be contained only by directories within the file
system. See also fileset.
free list. The list of available inodes that can be allocated to files.
Guardian. An environment available for interactive or programmatic use with the HP
NonStop operating system. Processes that run in the Guardian environment usually
use the Guardian system procedure calls as their application program interface;
interactive users of the Guardian environment usually use the HP Tandem Advanced
Command Language (TACL) or another HP product’s command interpreter. Contrast
with Open System Services (OSS).
inode. A data structure that stores the location of a file.
large OSS file. A regular file that has a size greater than or equal to approximately
2 gigabytes. Contrast with small OSS file.
large file safe. An application or function that causes no loss of data or corruption of data
when it encounters a large OSS file. A large file safe application or function is not
required to process large OSS files with the same ability as when it processes small
files, but it must handle errors or warnings detected during file manipulation operations
and fail gracefully. Contrast with large file aware.
large file aware. An application or function that can process large OSS files in addition to
small OSS files. For example, it must be able to access large files as input and
generate large files as output. Contrast with large file safe.
link. A directory entry for a file.
mount. To make a fileset accessible to the users of a node.
mount point. A directory that contains a mounted fileset. The mounted fileset can be in a
different file system.
node. A uniquely identified computer system connected to one or more other computer
systems in a network.
Open System Services (OSS). An open system environment available for interactive or
programmatic use with the HP NonStop operating system. Processes that run in the
OSS environment usually use the OSS application program interface; interactive users
of the OSS environment usually use the OSS shell for their command interpreter.
Synonymous with Open System Services (OSS) environment. Contrast with Guardian.
Open System Services (OSS) environment. The HP NonStop operating system Open
System Services (OSS) application program interface (API), tools, and utilities.