Proftpd: very slow ftp transfer

Simply edit the file proftpd.conf at the directory /system/hddapp/etc/.

The changes can be made after the last "if" command.

1. connect via Telnet on the NAS (as root).

2. in the command line enter: vi /system/hddapp/etc/proftpd.conf

Enter the following lines:

# FTP Speed issue #
<IfModule mod_delay.c>
  DelayEngine off
</IfModule>

UseSendfile off

3. type shift+a (append at end of line) or i (insert before cursor) to enter the edit mode and enter the upper value

4. type ESC shift+zz to exit with saving the file. If you don't like to save you can exit without saving with: ESC : q !.

5. reboot ...... READY!!!

Note: if you have the original Raidsonic firmware the changes get lost after reboot. This can be solved using the "do_it" package.