Finally.... Issue resolved! Here's what I had to do:  1. Open Navisphere running on the CX700 2. Went into Engineering mode 3. Right clicked storage array and chose "SnapView", then "Clone Feature Properties". 4. In the Clone Feature Properties dialog box, selected the LUNs from the "Clone Private LUNs" text box. 5. Clicked the "Remove" button for each of them. 6. Clicked "OK" 7. Clicked "Yes" on the confirmation window, at which point they became standard LUNs. 8. Deleted the LUNs!  And just in time for the weekend too!  Dynamox, thanks for your help. You definitely set me in the right direction!
We recently replaced a CX700 with a VNX550 and now we're wanting to use the CX700 in our test environment. We wanted to start with a clean slate and remove all of the RAID groups, LUNs etc, then carve it up again differently (we've learned a few things since this was first deployed). Anyway, we just about have it all cleaned off, but there are three RAID Groups that we cannot delete because they contain LUNs. Problem is, these LUNs can't be deleted either because it tells us they are in use by the system. I've already removed all LUNS from the Reserve LUN pool, and all of those have been deleted. At this point, we're not sure what the array is using these LUNs for, or how to get rid of them. Two of them are FLARE LUNs and the other is a MetaLUN made up of two LUNs itself.  Any idea how we can forcefully remove these LUNs and the RAID groups they are in?
Pesky LUNS that won't go away.