I had a ext4 drive today I replaced with a RAID drive, I moved all the files from the old HDD. After that I tried to start the Backuppc but I'm getting the following error:

Can't create a test hardlink between a file in /media/WESYS_RAID/backups/nbackuppc/pc
and /media/WESYS_RAID/backups/nbackuppc/cpool.  Either these are different file
systems, or this file system doesn't support hardlinks, or these directories don't
exist, or there is a permissions problem, or the file system is out of inodes or full.
Use df, df -i, and ls -ld to check each of these possibilities. Quitting...

The permission looks like this:

drwxrwxrwx 2 backuppc backuppc  4096 2012-04-12 11:06 cpool
-rwxrwxrwx 1 backuppc backuppc 14290 2012-04-10 16:00 dead.letter
drwxrwxrwx 2 backuppc backuppc  4096 2012-04-12 10:56 log
drwxrwxrwx 2 backuppc backuppc  4096 2012-04-12 11:08 pc
drwxrwxrwx 2 backuppc backuppc  4096 2011-10-27 22:40 pool
drwxrwxrwx 2 backuppc backuppc  4096 2011-10-27 22:40 trash

I also tried to create hardlinks and it does work

ln -i test.txt testlink

The result of the df -i

Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/sdc              122101760 1279684 120822076    2% /media/WESYS_RAID
/dev/mapper/WeSyS_LVM 115687424  308565 115378859    1% /media/WESYS_LVM

What am I doing wrong?