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Customers have clearly identified availability, scalability and flexibility as the primary requirements of their IT infrastructure. To deliver on these requirements, IBM eServer™ pSeries® has added numerous capabilities such as Dynamic Logical Partitioning, Capacity Upgrade On-Demand and Capacity Backup, helping make pSeries the fastest-growing UNIX® business servers. However, unexpected failures and demands are only part of the story; planned downtime for system maintenance and upgrades can also significantly impact service availability. This white paper explains how to use HACMP in combination with the other capabilities to perform software maintenance and upgrades in a single-frame LPAR environment with minimal service down-time.
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