Welcome
Administering
Learn how to administer the product.
Administering DevOps Code ClearCase®
Learn about performing administrative tasks for a DevOps Code ClearCase® community including managing software licenses, user and group accounts, ClearCase server and client hosts, shared data, and the network that connects them.
DevOps Code ClearCase® and Windows domains
Conversion to Active Directory
As with any enterprise-scale application in a Windows network, DevOps Code ClearCase® is affected when the network is converted from Windows NT domains to Active Directory domains. These topics explain how this conversion affects DevOps Code ClearCase and how to manage users, groups, hosts, and data during and after the conversion.
Domain upgrade scenarios
In a domain upgrade, you convert a Windows NT domain controller to an Active Directory domain controller. During an upgrade, the primary domain controller is unavailable briefly.
Upgrading multiple master and resource domains
Use this procedure when DevOps Code ClearCase® users and groups are members of more than one Windows NT domain and you use proxy groups to enable users from these domains to access a common set of VOBs and views. The domains can include resources, users, and groups or can be master domains trusted by resource domains.
Converting proxy groups

Overview
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Installing
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Upgrading and migrating
Learn how to upgrade and migrate data for the product.
Administering
Learn how to administer the product.
- Administering DevOps Code ClearCase®
  Learn about performing administrative tasks for a DevOps Code ClearCase® community including managing software licenses, user and group accounts, ClearCase server and client hosts, shared data, and the network that connects them.
  - DevOps Code ClearCase® network planning and administration
  - License servers and license administration
    Most DevOps Code ClearCase® applications and commands (cleartool commands, for example, or GUIs such as the ClearTeam Explorer) require a license to run.
  - Reconfiguring ClearCase® to use a different JRE
    When you change the Java Runtime Environment (JRE) for DevOps Code ClearCase®, you must reconfigure the product to make it work with the new JRE.
  - Administering the DevOps Code ClearCase® registry
    The DevOps Code ClearCase® registry is a central repository of information about shared resources such as VOBs and views.
  - DevOps Code ClearCase® network administration in mixed environments
    A DevOps Code ClearCase® environment that includes hosts that run Windows and hosts that run the UNIX system or Linux is said to be a mixed environment.
  - Overview of security considerations
    As an administrator, you are responsible for the security of your DevOps Code ClearCase® deployment.
  - VOB and view access control
    DevOps Code ClearCase® supports a rich set of access controls on versioned objects.
  - VOB administration
    Because VOBs are the principal repository for artifacts under DevOps Code ClearCase® control, VOB administration is one of the DevOps Code ClearCase administrator’s most important tasks.
  - VOB datatypes and administrative VOB hierarchies
    There are many types of VOB metadata. Some are unique to a particular VOB, but many must be managed consistently across a group of VOBs that store related artifacts (components of a UCM project, for example). These topics introduce VOB metadata and describe how to use administrative VOB hierarchies to simplify sharing of type objects among related VOBs.
  - Moving VOBs and relocating VOB data
    DevOps Code ClearCase® includes tools for moving data and metadata to another VOB and for moving entire VOBs to another disk or host. You may need to use these tools to reorganize VOB directories, redistribute data storage, or rebalance server loads.
  - Views and view administration
    A view provides a workspace where users access versions of file and directory elements that are under DevOps Code ClearCase® control. Views can also contain view-private file system objects (such as ordinary files and directories) that are not under DevOps Code ClearCase control.
  - Backing up critical DevOps Code ClearCase® data
    Like all databases, VOBs, views, and the DevOps Code ClearCase® registry have special backup and restore requirements.
  - Restoring critical DevOps Code ClearCase® data
    If you have implemented a sound backup strategy for DevOps Code ClearCase® data, it should be easy to restore that data, if necessary.
  - Periodic maintenance
    Periodic attention to storage management and repository integrity is an important administrative function. These topics describe VOB and view storage management tasks, the checkvob utility, and the DevOps Code ClearCase® scheduler, which you can use to automate many periodic maintenance chores.
  - Importing data
    DevOps Code ClearCase® includes several utilities for importing data from other configuration management systems or directly from the file system itself.
  - Troubleshooting
    These topics cover a variety of procedures that administrators might need to follow to find and fix problems.
  - Improving client host performance
  - Improving VOB host performance
  - Configuring cross-platform file-system access
  - DevOps Code ClearCase® and Windows domains
    - Domain configurations compatible with DevOps Code ClearCase®
      DevOps Code ClearCase® is compatible with a wide variety of domain configurations. The simplest configuration is a single domain that includes all users, groups, and computers; this configuration entails the least administrative overhead, but other common configurations work equally well.
    - Domain user and group accounts
      Any DevOps Code ClearCase® community must define a group to which all users who perform routine DevOps Code ClearCase operations using a common set of VOBs and views belong.
    - Multiple user account domain support
      If your existing domain configuration requires it, you can enable DevOps Code ClearCase® access for users and computers in multiple domains. Active Directory provides native support for this capability. DevOps Code ClearCase also has a proxy group feature that you can use to provide this capability in Windows NT domains.
    - Conversion to Active Directory
      As with any enterprise-scale application in a Windows network, DevOps Code ClearCase® is affected when the network is converted from Windows NT domains to Active Directory domains. These topics explain how this conversion affects DevOps Code ClearCase and how to manage users, groups, hosts, and data during and after the conversion.
      - Preparing DevOps Code ClearCase® hosts
      - Domain upgrade scenarios
        In a domain upgrade, you convert a Windows NT domain controller to an Active Directory domain controller. During an upgrade, the primary domain controller is unavailable briefly.
        Upgrading a single domain
        Use this procedure when all DevOps Code ClearCase® users, groups, and hosts are members of a single Windows NT domain:
        Upgrading a master domain and its resource domains
        Use this procedure if all DevOps Code ClearCase® users and groups are members of a single Windows NT domain (the master domain) that is trusted by one or more Windows NT resource domains to which DevOps Code ClearCase hosts belong.
        Upgrading multiple master and resource domains
        Use this procedure when DevOps Code ClearCase® users and groups are members of more than one Windows NT domain and you use proxy groups to enable users from these domains to access a common set of VOBs and views. The domains can include resources, users, and groups or can be master domains trusted by resource domains.
        Converting proxy groups
      - Domain migration scenarios
        If a domain upgrade is impossible, you can use a domain migration process.
      - Using vob_sidwalk to change or update VOB users and groups
        The vob_sidwalk command provides a flexible means of reassigning ownership of objects in a VOB, updating the SIDS that represent the groups in a VOB’s group list, and correcting VOB storage directory protections.
  - 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.
  - Configuring DevOps Code ClearCase® for high availability
  - Estimating VOB size
    If you can estimate the number of elements, versions, and derived objects that a VOB will ultimately contain, you can compute a very rough estimate of the size of a VOB that can accommodate them. VOB storage includes a database and pools. On Windows®, the database and pools must reside on a single disk partition. On Linux® or the UNIX system, the pools can be located on a different partition or host, using symbolic links.
  - Administering the CCRC WAN server
  - About CCRC WAN server parallel view loading
  - Administering and using CMI task-provider integrations
    DevOps Code ClearCase® supports integrations with task providers such as Rational® ClearQuest®, Rational Team Concert (RTC), and Atlassian Jira through the Change Management Interface (CMI).
- Administering platforms for DevOps Code ClearCase®
  Learn how to perform DevOps Code ClearCase® administrative tasks on supported platforms.
- Administering DevOps Code ClearCase® MultiSite
  Learn to configure and manage the DevOps Code ClearCase® MultiSite and Rational® ClearQuest® MultiSite environments to support development activities at different locations.
Developing
Learn how to develop software with DevOps Code ClearCase® and ClearCase Remote Client.
Managing change and releases
Learn how to manage change and release in the product.
Integrating
Learn how to integrate DevOps Code ClearCase® with other products.
Tutorials
Complete tutorials with specific learning objectives for the product.
Extending product function
Learn how to extend the product.
Reference
Review reference information for the product.
Glossary

Converting proxy groups

About this task

Use the following procedure to replace the proxy groups required in a Windows NT® domain environment with a DevOps Code ClearCase® users group that is an Active Directory universal group. The universal group includes the groups formerly used as proxy groups.

Note: You can use this procedure only in an Active Directory domain that is operating in native mode. The DevOps Code ClearCase® users group and all the proxy groups must exist in the same forest.

Procedure

Use Active Directory management tools to rename the DevOps Code ClearCase® users group in the primary DevOps Code ClearCase® domain.
For example, the ATLANTA\clearusers group created in the procedure in Using proxy groups and domain mapping in Windows NT domains could be renamed to ATLANTA\clearusers_Atlanta.
Use Active Directory management tools to create a new (universal) DevOps Code ClearCase® users group.
Keep the same name (ATLANTA\clearusers in our example), so that users do not have to change the value of their CLEARCASE_PRIMARY_GROUP environment variable.
Use Active Directory management tools to add the former proxy groups (BOSTON\clearusers_Boston and CHICAGO\clearusers_Chicago in our example) and the group you renamed in Step 1 as members of the new (universal) DevOps Code ClearCase® users group.
Disable domain mapping on all DevOps Code ClearCase® client and server hosts.
To disable domain mapping on a DevOps Code ClearCase® host, use a registry editor to navigate to the registry key HKEY_CURRENT_USER\SOFTWARE\Atria\ClearCase\CurrentVersion, and then remove the DWORD value DomainMappingEnabled. (Some DevOps Code ClearCase® hosts might store this value in HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Atria\ClearCase\CurrentVersion.)
Shut down and restart all DevOps Code ClearCase® client and server hosts.