The customer case has been closed, and their situation was resolved by not using the Storwize DRP feature. However, I'm kicking this BZ to OSP-18 because the IBM team recognized the problem and provided a fix in the Xena release. We can request a backport to Wallaby if a customer requires the fix in OSP-17.
I've tuned the summary a bit so that it's not incorrectly marked as feature.