precisely.com | 877 700 0970 IBM i OS Journaling and High Availability 1 IBM i OS Journaling and High Availability A guide to understanding the foundation of software-based replication in IBM i environments Introduction IBMs midrange computers, from the earliest System/38 to today’s Power Systems servers, have a reputation for reliability. That reliability is in great part due to the journaling features that have been present in all variations of its operating system. Every system event and configuration change is journaled (logged) so that recovery from application errors or hardware problems is easier and faster. Journaling was initially introduced as a feature of the operating system on IBM System/38 computers and was intended to aid technicians in their system recovery effor

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