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For selected segments that contain easily re-creatable data for which data recovery is not an issue, you can turn off journal processing for those segments.
While turning off journal processing has the advantage of saving valuable system resources, it is important to note that when journaling is turned off for a segment, that segment can no longer participate in a continuous backup strategy (even if journaling is re-enabled). If you want to re-establish continuous backup for the segment, you must first generate a new master copy of the segment.When a segment first comes online, the JOURNAL Data Object Broker parameter on a segment definition in member DBJCL of the JCL data set determines whether journal processing is initially on or off. In the following example, JOURNAL=N indicates that journal processing is disabled:TIBCO Object Service Broker Parameters for more information about Data Object Broker parameters.The first of two ways to turn journal processing on and off for a specific segment is by using TIBCO Object Service Broker operator commands:
F (or Modify) Dbjrnlon or Dbjrnloff You can also use the S6BTLADM (Administration Menu) utility to turn journal processing on and off.TIBCO Object Service Broker for z/OS Installing and Operating for more information on the S6BTLADM utility and on operator commands.
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Copyright © TIBCO Software Inc. All Rights Reserved |