Synology-vmm-backup

Script for automate the export of VM's in Synology

PUT CORRECT PARAMETERS:

You have to modify some parameters for the script to be really functional.

• Search all the lines that contains this: /ROUTE/TO/THE/DESTINATION/FOLDER
• Then replace that line with your path, it has to be a shared folder and the route looks like this: /volume1/shared_folder/NAME_OF_VM
• Change the shared folder that the backup is going, the parameter is --dst, inside this folder you have to create a folder with the SAME name as the VM

/var/packages/Virtualization/target/bin/vmm_backup_ova --dst=Backup --batch=1 --guests="NAME_OF_VM"

HOW TO TO RUN:
You have to create a scheduled task in control panel, select the option user defined script, give him root permisions and put:
bash /route/to/your/script

TASKS PERFORMED IN ORDER:

1. Shutdowns the VM
2. Start the backup
3. Check the number of existing backups, if it exceeds 3, delete the oldest ones and keep the last 3.
4. Copies the last one to another folder, thats useful if you want to create a Hyper Backup task to export this other storage device.
5. Starts the VM again.

NOTES:

• There's no need to shutdown the VM before the export, but in my case I want to keep consistency on the Backups avoiding errors.
  If you want to shutodow just comment/delete this two lines.

synowebapi --exec api=SYNO.Virtualization.API.Guest.Action version=1 method=shutdown runner=admin guest_name="NAME_OF_VM"
synowebapi --exec api=SYNO.Virtualization.API.Guest.Action version=1 method=poweron runner=admin guest_name="NAME_OF_VM"

• You can edit the number of copies that you want to keep. You have to go to this piece of code and change the value 3 to the number of backups that you want to keep.

num_old=$(($num_lin-3))