Space announcement We are no longer updating this space, and you cannot comment on this space. The RECOVERY MANAGER for IMS component is now documented in BMC AMI Backup and Recovery for IMS.

Log database changes

IMS automatically records database update information and IMS message and control information about events that occur in the IMS environment.

If a problem occurs, log data can be used for backout (reversal) of uncommitted changes and for restoration (reapplication) of committed changes.

An active IMS system can generate a huge volume of log data. The change accumulation technique is commonly used to reduce the amount of resources needed to manage and store log data and to reduce the amount of time needed to process log data during recovery. This process accumulates an aggregate of changes that would be required for database recovery.

To perform change accumulation, you can use the BMC Change Accumulation utility or the IBM IMS Database Change Accumulation utility. The BMC Change Accumulation utility provides a wealth of features to perform change accumulation quickly and efficiently.

 

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