Thanks for your advice, I turned off WOL in bios and i can shutdown my nas. Now i have a new problem. When WOL was enabled, I setup for my hdd and my Nas hibernate and it worked fine( hdd hibernate after 10 minute and 10 minute after that my Nas entered standby or shutdown mode, something like that, and it restart right after that ). Now I can't make it work anymore with the same settings. I don't know why. And could you show me how fix the WOL problem? When nas is shutting down, I saw this message on screen:
"syslog-ng stop/wating
System is not in ups safe mode
unmount root [1]
/proc/self/fd/9: line 17: can't create /.unmount_root__failed: Read-only file system"
I connect my nas with an Eaton UPS by the way!