Preparing Solaris systems for installation

Before you can install IBM® Business Process Manager, you must prepare your Solaris operating system.

About this task

Because certain steps are specific to a version of the operating system, all steps might not apply to your environment. If no qualifier is provided for a particular step, complete the step for all versions of the operating system.

Procedure

Complete the following steps on your Solaris systems before installing IBM Business Process Manager:

  1. Because WebSphere® Application Server is a prerequisite of IBM Business Process Manager, complete the required preparation steps in the Preparing Solaris systems for installation topic in the WebSphere Application Server information center.
  2. Increase the maximum number of open files. The default setting is usually not enough. You can check your current maximum number of open files by using ulimit -n. The following example shows the maximum number of open files being increased to 8800, which is large enough for most systems. The ulimit requirement is dynamically calculated at installation time and might need to be larger based on the options you select.

    Before installing, run the following command:

    • ulimit -Hn 8800

    Alternatively, you can use the following steps to edit the resource limits file:

    1. Open /etc/system
    2. Add the following line to the end of the file:
      • set rlim_fd_max=8800
    3. Save and close the file.
    4. Log off from the operating system and log in again.
  3. Set the umask value to 077 using the following command:
    • umask 077
    The value 077 is the most restrictive value that IBM Business Process Manager will tolerate. You can optionally choose to set a less restrictive umask value for the following access levels:
    • 037 for read-only access for a group of human administrators and tools
    • 027 for read and write access for a group of human administrators and tools
    • 007 for read, write, and execute access for a group of human administrators and tools
  4. Complete the steps in Tuning Solaris systems.
  5. Ensure all servers involved are set to the same time. Use the same network time protocol for all servers on all cluster nodes, including application, support, and database clusters. A time mismatch will cause erratic behavior, including duplicate system tasks.