sdd is Shut Down Daemon

It is a Linux service to shut down a server down as soon as it can (to save power). Restarting the server (wakeonlan etc.) is not covered in this document.

TYPICAL USAGE

A home NAS which is turned on when needed, manually or by wakeonlan but should shut down automatically when no users are using it any more.

WHO

who shows any users currently logged in to the system.

HDPARM

hdparm is a very useful tool under Linux with which hard drives can be configured and monitored.

Set hard disk spindown with hdparm:

hdparm -S <Int>

or with /etc/hdparm.conf

  /dev/sdb {
    spindown_time = 240
  }

See man page for hdparm for details of spindown_time.

See example config.yml file for configuration options, or application help:

sdd --help

INSTALLATION

To install this module, run the following commands:

perl Makefile.PL
make
make test
make install

For Debian/Ubuntu: Copy examples/etc/sdd.conf to your /etc directory and modify it for your system Copy examples/init.d/sdd to your /etc/init.d directory and run

update-rc.d sdd defaults

SUPPORT AND DOCUMENTATION

https://github.com/robin13/sdd

LICENSE AND COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.