Introduction

DevOps Code ClearCase® MultiSite and Rational® ClearQuest® MultiSite add a powerful capability to DevOps Code ClearCase and Rational ClearQuest. With MultiSite, developers at different locations can use the same DevOps Code ClearCase versioned object base (VOB) or Rational ClearQuest database set (a schema repository and its associated user databases). For DevOps Code ClearCase, each location (site) has its own copy (replica) of the VOB. For Rational ClearQuest, each location has its own copies, or replicas, of the schema repository and user databases. At any time, changes made in one replica can be sent in update packets to other replicas. You can manage replicas by using the command-line tools.

An organization can use MultiSite to distribute independent, but related, development efforts across multiple cities, nations, or continents. For example, a company in the United States has development and testing sites in India, Argentina, Japan, and Australia. Because it is not practical for all engineers to access the VOBs and databases in the United States, the company uses MultiSite to distribute the development.

For Rational ClearQuest, MultiSite can also be used at a single geographical location to allow independent groups to work with the same development data or to be a backup mechanism. For example, a company that wants extra reliability for backups can create local replicas for a database set.

This section gives an overview of the major features in MultiSite. The following sections provide information about configuring and using MultiSite.