Auto Poweroff for Synology Diskstation

Shutdown your NAS based on network traffic statistics.

Install

$ scp auto-poweroff.sh root@diskstation.local:

Usage

You can control the monitor job with start, stop, restart and status commands:

$ ssh root@diskstation.local
$ ./auto-poweroff.sh [start|stop|restart|status]

The job will be killed by the OS once you close the SSH connection and neither nohub nor & will keep it running. Either create crontab entries to start and stop the monitor at specific times or create a symlink in rc.d:

$ ln -s /root/auto-poweroff.sh /usr/syno/etc/rc.d/S99auto-poweroff.sh

Configure

Options are defined at the top of the script as shell variables:

$ vi auto-poweroff.sh

Config:

• LOGFILE Log file location. Defaults to /var/log/auto-poweroff.log.
• MINUTES Number of silent minutes before automatic poweroff. Defaults to 90.
• TOLERATE Number of packages to tolerate per minute. Defaults to 100.
• DEBUG Set to 1 to see RX/TX diffs every minute in the log file. Note that this will prevent disk spin-down. Defaults to 0.

Options

• --minutes, -m Overrides the number of minutes

Crontab

Edit the crontab with vi:

$ vi /etc/crontab

Change the number of minutes to wait to 15 every day at 22:30:

#minute hour    mday    month   wday    who     command
30      22      *       *       *       root    /root/auto-poweroff.sh restart --minutes 15

Restart crond:

$ kill -HUP `pidof crond`

License

MIT