@lex wrote:better way: log in through telnet or ssh and delete using rm -rf (careful here: you could loose everything, make sure you are in the right directory !)....
If you have any experience of Unix this command is similar in operation to DLT. If you use it and you are in the wrong directory...use it at your peril.
As I wrote, using the 'delete' function within DSM should be fast enough.
DS412+, 4 x Seagate ST2000DM001 in RAID 10.