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The following sections outline the steps required to recover individual page data sets in a number of different recovery scenarios. The steps you follow depend upon your overall approach to data recovery.
4. Restart the Data Object Broker with the restored page data set and resume normal processing.If updates are pending (via the redolog and cache data sets), the Data Object Broker automatically applies the updates as part of initialization.To restore a page data set that is backed up using the continuous backup method, you must restore the data set from the most recent backup. You must then apply all outstanding journaled page images from the time of the backup to the point of failure. The job flow is as follows:
1. Flush all pending journal update information from the Data Object Broker into the continuous backup process as shown below:You must always run the S6BBRPTR (Batch Pointer Check) utility, against newly created data sets to ensure their integrity.
2. Run the S6BBRPTR (Batch Pointer Check) utility, against newly created data sets to ensure their integrity.External DASD backup utilities can be used to perform backups of the Pagestore provided records are not relocated within VSAM control intervals. All segments should be offline when the backups are taken and no updates should be pending.
2. Clear residual update information in all Data Object Broker operational data sets (the redolog, caches, and journals) as shown below:
3. If there are transactions in doubt on the contingency log, evaluate whether you need to abort these transactions.This decision depends on whether the external database server or the peer TIBCO Object Service Broker is also restored. You can abort in-doubt transactions from the S6BTLADM (Administration Menu) utility.Refresh your continuous backup, if you are using it, from a complete backup taken after the restore completed. This stops any invalid page images created after the point of full backup but prior to the restore process being completed, from being circulated within the continuous backup process.
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Copyright © TIBCO Software Inc. All Rights Reserved |