precisely.com | 877 700 0970 An Introduction to High Availability for Power Systems Running IBM i 1 An Introduction to High Availability for Power Systems Running IBM i Introduction Every company faces critical hours when system downtime is unwelcome—whether it’s planned or unplanned. One company’s important hours might only be from 9-to-5, while for another it’s 24x7. Increasingly, shops that were able to accommodate some periods of downtime for backups and system maintenance are finding that this window is quickly shrinking, or has disappeared altogether, because of increased demand for access to applications and data around the clock. Because of the need to keep systems available for increasing amounts of time, companies are realizing that a system failure or a site disaster

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