25.7 Networkwide Accessibility of VOBs and Views

Networkwide storage registries make all VOBs and views visible to all users. You can use the All VOBs and All Views nodes of the ClearCase Administration Console or the lsvob and lsview commands to list them all.

Typically, VOBs and views have different patterns of use:

• Most users require access to most (or all) VOBs.

• Most users require access to only a few views.

Accordingly, there are different schemes for activating VOBs and dynamic views on each client host.

• All public VOBs are usually activated (mounted) automatically when ClearCase starts on a client host.

• Users activate their views as needed, using explicit commands.

Public and Private VOBs

To provide control over how a VOB is activated, each VOB-tag is designated as public or private when it is created.

• On UNIX computers, all public VOBs are mounted as a group when ClearCase starts. To defeat this behavior, use the noauto mount option at VOB creation time (see mkvob -options).

• On Windows computers, all public VOBs are mounted as a group when you issue the following command:

cleartool mount -all

If you use the -persistent option to cleartool mount, the specified VOBs will be mounted automatically each time you log on. To force all public VOBs to be mounted automatically each time you log on, use the following command:

cleartool mount -all -persistent

You can also arrange to have a VOB mounted automatically when you log on by selecting the Reconnect at Logon check box in the Mount dialog box when you first mount the VOB from the ClearCase shortcut menu.

NOTE: If you are using Unified Change Management, your project's VOBs are mounted automatically when you start a UCM view.

A password facility controls public VOB creation. When creating a public VOB or VOB-tag (with the ClearCase Administration Console or with mkvob or mktag -vob), you must enter a password that is usually established when ClearCase is installed. (For information on how to create or change the VOB registry password, see the rgy_passwd reference page.)

NOTE: Any user can mount any VOB, public or private. The private designation means only that a VOB will not be mounted by a cleartool mount -all command, but must be mounted explicitly, by name.