I misunderstood the "PREFER" option of the "Use Cache Disk" section under SHARES. So I switched with some of my most used shares from NO to PREFER. Later I noticed that this was happening:

Nov 21 12:06:29 Tower root: moving "Movies" to cache

and ended up in:

Nov 21 15:26:53 Tower root: rsync error: error in file IO (code 11) at receiver.c(393) [receiver=3.1.2]
Nov 21 15:26:53 Tower move: rsync error: 11
Nov 21 15:26:53 Tower root: .d..t...... Photo/2011/2011-07 MTB/
Nov 21 15:26:53 Tower root: >f+++++++++ Photo/2011/2011-07 MTB/2011-07-11 MTB26.JPG
Nov 21 15:26:53 Tower root: rsync: write failed on "/mnt/cache/Photo/2011/2011-07 MTB/2011-07-11 MTB26.JPG": No space left on device (28)

 

Now the cache drive is at 100%. What is recommended to fix it? Thanks a lot.

Change use cache disk to "Yes" and run the mover.

Thanks a lot @johnnie.black that was solving it. All files sitting at the right place again :-)

Don't forget that after the mover completes you need to switch back to "No" if you don't want use cache for that share.

Sure that was considerate and done 

Back to normal operation. Thanks again.