SynoShutdownAfterSnapshotReplication

This scripts automatically shuts down a Synology NAS after a list of snapshot replication jobs have successfully completed.

1. Notes

• All snapshot replications need to start after midnight on the same day.
• The script will send warning messages if the tasks are not completed by 23:00.
• If the NAS is booted manually after 06:00 the script will not shut it down to allow for maintenance/administration/other tasks.
• The script is able to automatically update itself using git.

2. Installation

2.1 Install Git (optional)

• install the package Git Server on your Synology NAS, make sure it is running (requires sometimes extra action in Package Center and SSH running)
• alternatively add SynoCommunity to Package Center and install the Git package (https://synocommunity.com/)
• you can also use entware (https://github.com/Entware/Entware)

2.2 Install this script (using git)

• create a shared folder e. g. sysadmin (you want to restrict access to administrators and hide it in the network)
• connect via ssh to the NAS and execute the following commands

# navigate to the shared folder
cd /volume1/sysadmin
# clone the following repo
git clone https://github.com/alexanderharm/syno-shutdown-after-snapshot-replication
# to enable autoupdate
touch syno-shutdown-after-snapshot-replication/autoupdate

2.3 Install this script (manually)

• create a shared folder e. g. sysadmin (you want to restrict access to administrators and hide it in the network)
• copy your synoShutdownAfterSnapshotReplication.sh to sysadmin using e. g. File Station or scp
• make the script executable by connecting via ssh to the NAS and executing the following command

chmod 755 /volume1/sysadmin/synoShutdownAfterSnapshotReplication.sh

3. Setup

• run script manually

sudo /volume1/sysadmin/syno-shutdown-after-snapshot-replication/synoShutdownAfterSnapshotReplication.sh  "<sharedFolder1>" "<sharedFolder2>"

AND/OR

• create a task in the Task Scheduler via WebGUI

# Type
Scheduled task > User-defined script

# General
Task:    SynoShutdownAfterSnapshotReplication
User:    root
Enabled: yes

# Schedule
Run on the following days: Daily
First run time:            01:00
Frequency:                 Every 30 minute(s)
Last run time:				     23:30

# Task Settings
Send run details by email:      yes
Email:                          (enter the appropriate address)
Send run details only when
  script terminates abnormally: yes
  
User-defined script: /volume1/sysadmin/syno-shutdown-after-snapshot-replication/synoShutdownAfterSnapshotReplication.sh "<sharedFolder1>" "<sharedFolder2>"