Configuring non-ClearCase access on Linux or the UNIX system

You can configure a DevOps Code ClearCase® host running Linux® or the UNIX system to support access to VOBs and dynamic views from computers that do not run DevOps Code ClearCase.

Note: Non-ClearCase access is not supported on DevOps Code ClearCase Windows hosts.
A host running Linux or the UNIX system on which DevOps Code ClearCase has not been installed can read VOB data from a VOB server running Linux or the UNIX system. Typically, the technique is as follows:
  • A host running Linux or the UNIX system and DevOps Code ClearCase must export a view-extended pathname to the VOB mount point (for example, /view/exportvu/vobs/vegaproj). Edit the file /etc/exports.mvfs to specify this pathname.
  • One or more non-ClearCase hosts access the VOB through a view-extended pathname. For example, a host may have an entry in its file-system table that begins
    mars:/view/exportvu/vobs/vegaproj /usr/vega nfs ...

Restrictions on use

Non-ClearCase access carries several restrictions:
  • VOB access. Users on the non-ClearCase host can read, but cannot modify, data from VOBs on VOB server hosts running Linux or the UNIX system that have been configured for non-ClearCase access. They are also restricted to using the element versions selected by the specified view; they cannot use version-extended or view-extended pathnames to access other versions of the VOB's elements.
  • Building. Although users cannot modify VOBs that are accessed through an export view, they can write to view-private storage. Users can modify these view-private files with an editor and build them, though not with clearmake. Files created by such builds do not become derived objects; they are view-private files, unless developers take steps to convert them. (For more information, see DevOps Code ClearCase Guide to Building Software.)
  • Because clearmake and other build-management tools do not run on the non-ClearCase host, configuration lookup and DO sharing are not available.