columnstoreBackup copies only the softlink instead the data.
If for example
is a soft link, columnstoreBackup backup only the softlink himself not the data.
In the code of columnstoreBackup I found the following.
-a is equivalent to -rlptgoD
This includes -l option, which is described as
"When symlinks are encountered, recreate the symlink on the destination."
-L do the opposite, so probably replacing
would fix this.