Samba on NonStop User Manual

Glossary
A-Z
Access control list A structure attached to a software object that defines access permissions for multiple users and
groups. It extends the permissions defined by the file-system permission bits by allowing you
specify the access rights of many individuals and groups instead of just one of each.
ACL See access control list (ACL).
browser A graphical user interface (GUI) used to access sites on the World Wide Web. Netscape, Internet
Explorer, Mosaic, and Lynx are commonly used browsers.
Daemon On a UNIX system, a process that runs continuously to provide a specific service for other
processes. A daemon does not have a controlling terminal and is not explicitly invoked. On an
HP NonStop system, a daemon runs in the OSS environment and has an OSS process ID.
Directory A type of OSS file that contains directory entries, which name links to other files. No two directory
entries in the same directory have the same name.
EDIT file An unstructured file with the file code 101 in the Guardian file system. An EDIT file can be
processed by either the EDIT or PS Text Edit (TEDIT) editor. An EDIT file typically contains source
program or script code, documentation, or program output. OSS functions can open an EDIT file
only for reading.
EMS See Event Management Service (EMS).
Event Management
Service (EMS)
A part of the Distributed Systems Management (DSM) product used to provide event collection,
event logging, and event distribution facilities. It provides for different event descriptions for
interactive and programmatic interfaces, lets an operator or application select specific
event-message data, and allows for flexible distribution of event messages within a system or
network.
Fault tolerance The ability of a HP NonStop system to continue processing despite the failure of any single
software or hardware component within the system.
File-system In the OSS environment, a collection of files and file attributes. A file-system provides the
namespace for the file serial numbers that uniquely identify its files. Open System Services 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 an HP 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 referred to as the
Guardian file-system.
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.
Fileset In the OSS environment, a set of files with a common mount point within the file hierarchy. A
fileset can be part or all of a single virtual file system.
On an HP NonStop system, the Guardian file system for a node has a mount point and is a subset
of the OSS virtual file-system. The entire Guardian file system therefore could be viewed as a
single fileset. However, each volume, and each process of subtype 30, within the Guardian
file-system is actually a separate fileset. The term file-system is often used interchangeably with
fileset in UNIX documentation.
Guardian An environment available for interactive or programmatic use with the HP NonStop operating
system. Processes that run in the Guardian environment 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.
28 Glossary