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PowerHA for AIX is the new name for HACMP (High Availability Cluster Multiprocessing). HACMP is an application that makes system fault resilient and reduces downtime of applications. This article introduces PowerHA and provides a detailed explanation of how to configure a two node cluster. This document is very useful for understanding PowerHA and setting up a two node cluster.

One of the most novel and differentiating features of a UNIX system is its command line. With just a few keystrokes, including a bit of "glue", you can use the command line to combine the finite set of UNIX utilities into innumerable, impromptu data transforms. These articles will teach you the basics of the UNIX shell and discover how you can use the command line:

Keeping multiple machines synced can be challenging. Fortunately, a powerful tool is available to make the task easier: rsync, an open source utility that provides fast incremental file transfer. An important feature of rsync not found in most similar programs/protocols is that the mirroring takes place with only one transmission in each direction.