Hi, thanks for your help. I ended up logging a support case and the issue ended up being that there was a private LUN in the Reserved LUN Pool who's state was "Initializing" and it had no owning SP. As soon as it was removed from the RLP all was good [IMAGE]  George.
Hi,  I'm using USM to upgrade the Flare code in a CX4-240 from R30.522 to R30.524. When it does the rule checks, it fails the "No Interrupted Operations" check with the message "Direct LUN Transitions in Progress: Name=Virtual Disk 2, State=Creating".  I've done hundreds of Flare upgrades in my time and have never come across this issue. What does it mean?  Regards, George.
Direct LUN Transitions in Progress issue