Should you need information on the former certifications please contact Victoria Koepnick . The following is a high-level overview of how ClearCase works. The version object base, or VOB, is the repository for most ClearCase data containing all the different files and directories which are under version control. MVFS adds a third dimension of version to the normal two provided by UNIX and NT, directories and files. The specific version of a particular file or directory that the user sees in the workspace is determined by the view.
Different views allow users to work on different change activities.
MVFS uses the view to dynamically select file and directory versions out of the VOB for user access. In addition, on the NT platform only, ClearCase provides a snapshot mechanism that allows users to copy file versions selected by a view into a Snapshot directory. All three components may be located on the same or on different machines in the network. Each storage pool has its own set of characteristics. However, if data is lost it cannot be reconstructed, only restored from a backup.