Hello.
With your V7000, are you using Global Mirror Change Volumes? Are you doing SAN replication to your DR site rather than using the VMware replication feature?
If so, with the current V7000 & SRA code, there is a known bug & IBM is actively working on it. We've had a case opened with them for almost a year for this (and a few other) issues.
Apparently there is a "misfire" between when the SRA calls on the V7000 to allow the ESXi hosts to mount the FlashCopied/Change Volume - volumes... all behavior afterwards is somewhat the same, and always slightly different.
In IBM's latest GA, they were supposet to include the code that is available as an iFix for now... however they did not, which means there were obviously still some issues. If you call IBM to request this iFox, just be aware that once you go the iFix route, you're no longer to apply GA's standardly, you will always have a flag on your account and it will be treated differently.
Rumor has it that the new fix will be released in the coming GA... that being said, everyone who has V7000's regardless of Global mirror change volumes will have this patch "just in case"..
After it's released, we are going to wait a few weeks and let the more daring out there apply the latest code, once we are OK with the results we will apply it at DR but not HQ... after a few weeks of it running at DR we will then place it on our HQ site... and by the time this is all said and done, we may have out-grown our SAN all together!!
Best of luck and I hope this helps!!