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Image copies after recovery in LOADPLUS

The LOADPLUS copy function, when used with the LOAD RESUME YES option, provides performance benefits by not resetting the modified-page indicators in the table space data pages and space maps on existing pages, thus substantially reducing I/O operations.

Other products’ options (such as the RESETMOD NO option in COPY PLUS) also use this technique and do not reset the modified-page indicators in the table space.

Because of the way DB2 handles these modified-page indicators, you need to routinely make a full image copy of any table space that you recover by using this type of image copy before continuing to make incremental image copies. You should make the full image copy by using COPY PLUS with the RESETMOD YES option specified or the DB2 COPY utility.

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