7.3 Modifying a ClearCase LT Server on UNIX

Each VOB is managed by several server processes, which run on the ClearCase LT server. Because these servers make significant demands on system resources, server configuration is an important contributor to application performance.

UNIX Kernel Resources

You may need to adjust the following kernel resources on a ClearCase LT server running UNIX:

• Overall process table. The operating system's process table must support 96 or more concurrent user processes. If more than three or four VOBs are to reside on the host, increase the size of the process table to at least 128.

• Overall file descriptor table. The size of the operating system's file descriptor table must be at least 700. If more than three or four VOBs are to reside on the host, increase the size of the file descriptor table.

You may also find it beneficial to adjust kernel resources for the ClearCase LT server after ClearCase LT has been up and running for some time. For more information, see Tune Block Buffer Caches on UNIX.