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Fast Path Online Restructure/EP 4.0 ... Using Preparing for a DEDB restructure

Using secondary shadows for recovery

Recovery of an area data set is dependent upon the circumstances of the failure.

However, if you have specified secondary shadow area data sets, you can:

  • Restore the broken area with the contents of the secondary shadow area data sets (by using IDCAMS REPRO), and perform a roll forward recovery.

  • If you have RECOVERY PLUS for IMS installed, you can use the secondary shadow area data set as input into your full or timestamp recovery, provided that an EXTENDED BUFFER MANAGER (XBM) subsystem is active.

  • If you have IMAGE COPY PLUS installed, you can use the Copy Image Copy (CIC) function to create a standard image copy by using the secondary shadow data set as input. The image copy can be used by any standard recovery utility.

    • If you have RECOVERY PLUS for IMS installed, specify the SIC(2) keyword in your recovery JCL; the standard image copy will be automatically referenced as input to a full or timestamp recovery.

    • If you have a standard recovery utility installed, use DBRC commands to invalidate the primary image copy, forcing the standard recovery utility to use the secondary image copy as input.

Related topic

Preparing for a DEDB restructure

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Last modified by Winner kumar Jaiswal on Feb 20, 2019
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Naming the secondary shadow area data set
Modifying segment contents by using expressions
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