JohnThePhoneGuy,
Wondering why you're questioning my reply, i had the issue twice at 2 different customers,both on Bcm 3.6.The issue was caused by the BCM_360.104_VM.22.0064 patch.
Here's Level 2 comments on one of the cases;
"found that this site just upgraded from an older VM version(BCM_360.104_VM.22.0064) that had issues with the ccrs.mdf growing beyond it's allocated size. The file is currently 993,067,008 in size."
I did installed a lot of RCC myself and the only version that had that problem was on 3.6.