Source Disk becomes full when cloning

Micael Olsson
Jul 22, 2011 @ 12:59 pm


I'm trying to clone the startup disk of my MacBook Pro. It's a 320GB drive and I had 23GB free space on it when I started the cloning.
After about 50% into the cloning (according to the progress bar) my startup disk (also source disk) is completly full, I have 0 KB left on it. At this point CCC stops cloning.
Closing CCC makes the space free again… Another try - same result
Managed to free up some additional space, so I now have 32GB of free space when starting the cloning. At this very point I'm quite sure it's going to happen again as I can see the free space is getting lower and lower by the second.
To me it seems like there some caching issue…?
Not sure if it helps to say that it seems like it's happening when the cloning gets into the directory: /Library/Application Support/TrendMicro/common/lib/vsapi/tmp/
This is a directory that is unavailable to me, even though I'm the admin. The lib directory is the last I can open, vsapi is locked.
And sure enough, by the time I wrote this I'm out of space on the source disk!
I'll try to remove TrendMicro Security to see if it makes any change.

Otherwise, any ideas??? :/

1 Posted by Micael Olsson on Jul 22, 2011 @ 9:51 am

After following the instructions from TrendMicro ( to remove TrendMicro Security I now have a whopping 146 GB freeeeee space!! Shame on you TrendMicro to kidnap 121 GB of my drive like that - that's just tooooo much!
CCC has been running for almost 15 minutes without any problems so far! It has also percentage wise passed the magical point where it started to fill up the drive before.
I'll probably be a happy camper before I go home today! :D

2 Posted by Mike Bombich on Jul 22, 2011 @ 10:52 am

Hi Micael:

Thanks for the report! I added a comment about this to this section of the documentation:

Antivirus software may interfere with a backup