Task 1: Initializing Db2 resources for recovery (Phase 1)

Before you can recover your Db2 subsystem, you must restore the operating system and tape catalogs and define and initialize Db2 subsystem data sets. The Phase 1 job set creates the necessary log data sets, BSDSs, and VSAM files for the catalog and directory and establishes the conditional restart point.

Related topic

Using-BMC-AMI-Recovery-Manager-at-the-recovery-site

Before you begin

Before you initialize the Db2 resources, perform the following tasks:

  • Restore operating system catalogs and aliases and the tape management catalog. (This responsibility usually belongs to the operating system programmers.)
  • Restore Db2, BMC, and other application load libraries and data sets.
  • Unload the system resource recovery jobs that were created by ARMBSRR.
  • If you are recovering a data-sharing object set, clean out old information from the coupling facility structures. See the IBM DB2 Administration documentation for additional information on this procedure.
  • Bring up BMC Db2 Component Services (DBC).

To initialize Db2 resources

  1. Verify and, if necessary, edit the JCL that was created by ARMBSRR. For each Db2 subsystem, you may need to perform the following tasks:
    • Edit the JCL and search for ACTION(ABORT) to locate any INDOUBT transactions. Determine whether to modify the JCL from ACTION(ABORT) to ACTION(COMMIT) in order to allow those transactions to be committed. Otherwise INDOUBT transactions are aborted.
    • If you do not use the same volume names at the recovery site as you do at the local site, you must modify the JCL to reflect the recovery site volume names.
    • If your data sharing members are not on the same operating systems as the local site, you must change the ROUTE cards.

  2. Submit the JCL that was created by ARMBSRR. Db2 must not be started at this time.The Phase 1 job or jobs begin executing immediately, whereas the Phase 2 job or jobs are held for execution. If you used MAXLOGJOBS > 1, the Phase 1 jobs will submit additional log copy jobs. For more information about ARMBSRR and the number of jobs in each phase, see ARMBSRR—System resource recovery.

    Important

    The ARMBSRR program performs stacked tape analysis prior to creating the Phase 1 JCL. The number of log copy jobs may vary based on this analysis and may possibly be less than you requested with the MAXLOGJOBS option.

    If multiple jobs were created for Phase 1, they will be submitted by this JCL when it executes. See About Phase 2 for a diagram illustrating Phase 1 multiple jobs.

  3. Upon completion of the Phase 1 job or jobs, check the job output for warning or error messages. Correct any error situations to complete Phase 1 successfully.If you are using the Recovery Management for Db2 solution, check the job output from the ARMD* jobs to verify that data collection from the recovery processed correctly. For actual recoveries, data collection errors do not affect the job return code. This feature ensures that problems with data collection do not impact the disaster recovery.

    Tip

    If you need to restart the job or jobs during Phase 1, we recommend that you cancel the Phase 2 job that is on hold, then resubmit the JCL to execute from the beginning. For information on restarting Phase 1 or Phase 2 jobs, see Running-and-restarting-Db2-conditional-restart-recovery-jobs.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*