Open System Services Installation Guide (G06.24+, H06.03+, J06.03+)

Glossary
Open System Services Installation Guide—429954-004
Glossary-3
group ID
provides a file system (see also ISO/IEC IS 9945-1:1990 [ANSI/IEEE Std. 1003.1-
1990], Clause 2.2.2.38); the Guardian application program interface (API) provides a
file system; and OSS Network File System (NFS) provides a file system. (OSS NFS
filenames and pathnames are governed by slightly different rules than OSS filenames
and pathnames.) Within the OSS and OSS NFS file systems, filesets exist as
manageable objects.
On a NonStop system, the Guardian file system for a node is a subset of the OSS
virtual file system. Traditionally, the API for file access in the Guardian environment is
called the Guardian file system.
In some UNIX and NFS implementations, the term file system means 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.
group ID. The nonnegative integer that identifies a group of users of a NonStop network
node. Each user of that node is a member of at least one group. When the identity of a
group is associated with an OSS process, a group ID value is referred to as one of:
•
Real group ID
•
Effective group ID
•
Supplementary group ID
•
Saved-set group ID
Guardian. An environment available for interactive or programmatic use with the 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 use the HP Tandem Advanced Command Language (TACL) or
another HP product’s command interpreter. Contrast with Open System Services
(OSS).
HP NonStop Kernel user ID. A user ID within a NonStop system. The Guardian
environment normally uses the structured view of this user ID, which consists of either
the group-number, user-number pair of values or the group-name.user-name
pair of values. For example, the structured view of the super ID is (255, 255). The OSS
environment normally uses the scalar view of this user ID, also known as the UID,
which is the value (group-number *256)+ user-number. For example, the scalar
view of the super ID is (255 * 256) + 255 = 65535.
HP NonStop™ ServerNet Cluster (ServerNet Cluster). The product name for the
collection of hardware and software components that constitute a storage pool.
link. In the OSS file system, a directory entry for a file.
local operator. The person who performs routine system operations, such as starting and
stopping the system, loading and unloading tapes, and changing the air filter. The local
operator is normally the operator of the asynchronous system console for the node.
See also operator.