Create a snapshot view from Windows stored on unix

Create a snapshot view from Windows stored on a ClearCase UNIX server using CCFS

 Technote (FAQ)

Question

How can I create a snapshot view for use from Microsoft® Windows® clients, where the view_server process will run on a UNIX® or Linux® machine in an IBM® Rational® ClearCase® interoperation (interop) environment using CCFS (ClearCase File Server)?

Answer

Notes:

• This feature is not available for dynamic views, refer to for directions on creating and sharing dynamic views in an interop environment.
• This configuration will not work for creating VOBs. Refer to for more information.
• This configuration will only be supported when CCFS is used as the interop solution.

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A snapshot view can be created on UNIX or Linux from Windows if the view storage directory is generated using a registered that does not have a global path.

If the cleartool mkview -snapshot command syntax contains a UNC (Universal Naming Convention) path, then the operation will fail.

This is the same functionality used in Rational ClearCase LT® that allows snapshot views to be created across platforms; see for more details.

Snapshot views cannot be shared between operating systems, even though they can be created across platforms; therefore, views created from Windows are only for use on Windows, see for more details.

The view creation will apply security to the view based on the Windows user identity mapped onto UNIX.

ClearCase interop requires that all Windows users' usernames and their primary groups have matching usernames and primary groups on UNIX (or Linux) in a Rational ClearCase interop environment; see for more details.

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Create a Snapshot View

1. From UNIX, register the view storage location in the UNIX and Windows regions:
   • cleartool mkstgloc -view -host ccviewserver -hpath /ccstg/views/snapshot.view.stg -ngpath snapshot.view.stg /ccstg/views/snapshot.view.stg
     
     
   • cleartool mkstgloc -view -region windows-region -host ccviewserver -hpath /ccstg/views/snapshot.view.stg -ngpath snapshot.view.stg /ccstg/views/snapshot.view.stg
     
     
2. Create a snapshot view from a Windows client using
   
   cleartool mkview -snapshot -tag -stgloc
   
   Example:
   
   C:\>cleartool mkview -snapshot -tag snap_vu -stgloc snapshot.view.stg c:\Rational\Storage\views\snap_vu
   
   
   Note: The view can also be created from the GUI, by specifying the storage location in the Advanced View Options of the View Creation Wizard:
   
   
   
   
   
3. The snapshot view will need to have a tag in the UNIX region as well.
   
   cleartool mktag -view -tag -region -ngpath -host
   
   Example:
   
   C:\>cleartool mktag -view -tag snap_vu -region unix-region -ngpath -host ccviewserver /ccstg/views/snapshot.view.stg