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If the installation fails with the following error message on the console:

The value of maximum number of processes allowed per user may not be large enough. This kernel attribute is a tunable and can be changed on any node of the cluster.

To determine the current value of "Maximum number of PROCESSES allowed per user", enter:

To see the default value of this tunable and its valid range of values, enter:

If necessary, you can change the value of the tunable using the smitty interface:

You can also directly change the CuAt class using the following command:

Increasing the value of the parameter takes effect immediately; otherwise the change takes effect after a reboot.

See the smitty and chdev manual pages.