To add a new storage, you simply need to edit the file /etc/backup/config/storages.yml.
the storages.yml should be look like this
storages:
# mystorage is the name you can replace it whatever you want
mystorage:
bucket: mystoragebucket
access_key_id: mystorageaccesskey
secret_access_key: mystoragesecretkey
region: mystorageregion
endpoint: https://mystorage.endpoint
primary: yes
# mystorage2 is the name you can replace it whatever you want
mystorage2:
bucket: mystorage2bucket
access_key_id: mystorage2access
secret_access_key: mystorage2secretkey
region: mystorage2region
endpoint: https://mystorage2.endpoint
primary: no
# if you had another storage you can put it in here, and so on
mystorage3:
...
# This file is created with bqckup.com. Tool for create seamless bqckup for your website
If you have three storage options, you can add them to the configuration file
