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10.3. HACMP/ES and ESCRM

This was originally only available for SP environment, where tools were already in place with Parallel Systems Support Program (PSSP) to manage larger clusters. As of AIX Version 4.3.2 and PSSP Version 3.1, the high availability infrastructure, which previously was tightly coupled to PSSP, was externalized into a package called RISC System Cluster Technology (RSCT). This package can be installed and run, not only on SP nodes, but also on regular RS/6000 systems. This allows HACMP/ES to also be available on non-SP RS/6000s since Version 4.3 by using the rsct.core fileset.

Since HACMP/ES and ESCRM Version 4.4, application monitoring is available. This provides a process application monitoring and user-defined application monitoring of one or multiple processes for an application. This feature determines the status of the process or processes, and if those processes would fail they can be restarted, the system can be notified, and the resource group to which the monitored applications application server is present in can also fall over to another node that is a participating in that resource group.


  

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