Utilities and Other Interfaces › GDPS/PPRC HyperSwap Support › The VPCEXIT4 Sample REXX EXEC

The VPCEXIT4 Sample REXX EXEC

The HyperSwap code periodically calls the VPCEXIT4 REXX EXEC if it exists in the NetView CLIST concatenation. VPCEXIT4 returns one of two possible return codes:

0

All RESERVES for PPRCed volumes are converted to global ENQs; GDPS remains enabled for HyperSwap.

4

RESERVES for PPRCed volumes may not be converted to global ENQs; GDPS temporarily disables HyperSwap.

VPCEXIT4 calls the MIMHYPS() external REXX function and returns one of the above return codes to its caller based upon the result of the MIMHYPS() REXX function. The sample EXEC resides in member VPCEXIT4 of the CAI.CBTDSAMP data set.

You may use the sample VPCEXIT4 REXX EXEC provided or you can write your own VPCEXIT4 REXX EXEC. Either way, you must make sure that a REXX EXEC named VPCEXIT4 exists in the NetView CLIST concatenation if you wish to run HyperSwap with CA MII.