Every host in a
Rational® ClearCase® network
plays one or more of the following roles.
- Client host. Each Rational ClearCase user
works at a client host, running command-line programs and graphical user interfaces,
and other software (for example, development tools and operating system utilities).
A client installation can include the multiversion file system (MVFS), which
provides file-system support for dynamic views.
- Server host. Any host on which a Rational ClearCase data
repository can be created is a server host. Some hosts might be dedicated
servers on which client software rarely runs (and might not be installed).
Other server hosts might also be clients.
- License server host. Every Rational ClearCase community
must have a license server host, which is normally designated during site
preparation. The license server supplies licenses that allow Rational ClearCase commands
to run. Each client or server host in the community is initially associated
with a license server during installation. License servers and license administration contains
more information about the license server and license administration.
- Registry server host. Every Rational ClearCase community
must have a registry server host, which is normally designated during site
preparation. The Rational ClearCase registry
provides a way for members of the community to locate shared resources, such
as data repositories. Each client or server host in the community is associated
with a registry server during installation. For more information about the Rational ClearCase registry
and the registry server host, see Administering the Rational ClearCase registry.
- CM server host. At least one host in the network acts as the CM
server host. CM server provides application support for the Rational ClearCase Remote
Client.
- Network-attached storage (NAS) devices. Certain NAS devices are
certified for use with Rational ClearCase.
These devices can be used to store any Rational ClearCase programs
or data. NAS devices do not run Rational ClearCase;
they provide storage that Rational ClearCase hosts
access over a local area network. For information about configuring access
to a certified NAS device, see Rational ClearCase and network-attached storage devices.
For a list of tested and supported NAS devices, see http://www.ibm.com/support/docview.wss?rs=984&uid=swg21239315.
- Non-ClearCase hosts
running Linux or
the UNIX system. Hosts
running Linux or
the UNIX system
that cannot run Rational ClearCase can
access Rational ClearCase data,
with limitations, through standard network file-system facilities. For more
information, see Configuring non-ClearCase access on Linux or the UNIX system.