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horctakeover vs pairresync -swapp

Question asked by San Lihe on May 22, 2015
Latest reply on Nov 21, 2015 by Bhaskar Ramashankar



Site A is TC P-VOL and Site B is S-VOL, both storages are USPV. Suppose we have completed following DR testing,

1) pairsplit -g xxx -rw at Site A

2) data changed on Site B S-VOL

3) running pairresync -g xxx -swaps on Site B to resync the blocks from B to A


After completing above steps, the P and S vols should be switched, P-VOL at Site B and S-VOL at Site A, and pair status is in 'PAIR'.


Now we want to failback P-VOL as origianl - P-VOL at Site A and S-VOL at Site B. I understand I can run 'horctakeover' at Site A. My question is can i run 'pairresync -swapp' at Site A to achieve this as well? if yes what difference from 'horctakeover' and 'pairresync -swapp'?