Many large "fake" backup sets exist in Deduplication folder
I'm running Backup Exec 2012, fully patched, on Windows Server 2008 R2 Std x64. I have one 16.3TB deduplication storage folder. BE was upgraded from v2010 R3 about 6 weeks ago.
Today I was poking around in areas of the Backup Exec console that I hadn't seen yet, and came accross the page where I can view all backup sets in the dedupe folder (Storage tab -> Deduplication Storage Folder details -> Backup Sets). That's when I discovered that the oldest backup sets listed are those shown in the screen shot below - 'SHCBU1' is my media server:
There are 94 of these identical "backup sets" listed, totalling an obviously incorrect 418.3TB.
Why do these sets exist? Is it safe to delete them? Why or why not? As far as I know they didn't exist until I upgraded to 2012.