I mounted a remote server via sshfs and set it as the plesk backup repository, so I can backup my domains through sftp (with a keyfile).

But now, whenever I try to upgrade my plesk installation, plesk writes files to my backup repository (i.e. mysql backup before a mysql upgrade) and immediately tries to change the owner of the file, which fails because chown it is not supported on mounted directories.

The best solution would be to provide the option to set a different path for automated backups.

Enable additional Schedule Backup and provide an option to disable the obligation to make a Full Backup (letting user the option to create additional Incremental Backups, without messing things like repeated Full Backups). This already happends if the Admin and Client both setup Backups, it create multiple Full Backups which is not necessary since Admin Backups are create in behalf user.

Exclude mailing lists from incremental backups

Plesk Migrator is a great tool but it don't migrate backup settings.
Please make this possible !

In Plesk reseller can restore data from a full backup created by Plesk administrator. Currently, the backup created to FTP storage can be restored only by its creator.

Add option to Resellers to restore data from the Administrator's full backup stored on FTP.

May it could be great for a next release of Plesk, that comments could be display in the backups list from the start! Correctly comments for backups on the remote FTP server can not be viewed.

Would love to see Rsync support added. SFTP is slow.

There is no option to encrypt backups. I do not trust Google or any other cloud service. Yet I could use the (otherwise completely useless) storage to put my backups there.

So please include a proper and secure encryption. Thanks!

Edit:
It could be as easy as running gpg as a last step before uploading:

Encrypting (simple tar example):
tar -czf - [FOLDERS] | gpg -c --batch --passphrase [PASSWORD] -o backup.tgz.gpg

Decrypting:
gpg -d --batch --passphrase [PASSWORD] backup.tgz.gpg | tar -xzf -

When you want to Restore a Backup from FTP, first this backup it's downloaded to the Local Plesk Server and then the restoration starts.

At the end of the restoration process, the Local Backup it's still there, maybe it's better to save this space deleting this Local Backup and maintain only the FTP backup which was downloaded.

Backup task may increase server load. In order to balance it, it is required understand how long task has been running.
Currently it is possible to check only from log files, which is not very convenient. Please, add ability to simply check this info in Plesk UI.

Allow excluding patterns from full backups with more control.
For example, exclude pattern A only from Reseller Accounts and pattern B only from Costumers, etc.

It is required to make possible to list backups via REST API.

Add possibility to Plesk service plans to restrict the ability for a customer to create incremental backups so that a customer has a permission to create full backups only.

Please enter the percentage of database restore in progress ... it is very frustrating to restore without knowing either the time left or the totality of kbytes transferred and remaining, with progress a bar
Thank you

Currently, restored backups, which have been downloaded from a remote storage, are being stored locally and appear in the backups list and become part of a backup process.
Expected behavior:
Download, restore & delete downloaded backup files. Remove from the backup list.

Add to Plesk functionality to allow the clients to restore the backups on the remote server via FTPS.
The administrator can create backups and clients can restore their own parts of backups. As how it is done with common backups on local storage

If you do not want to use FTP or SFTP you can also use Samba

I'd really like to have a UI to select what is contained in a serverwide scheduled backup.
We have a couple of domains where people dump photos and videos for further processing, amounting to 100s of GBs, and we don't need backups of those.
The UI you got for the restore dialog would be just fine.
I think it makes more sense to select what is contained, than what to exclude.

It is required to create/restore SFTP backups via CLI to automate the process

The Backup Manager should be able to show the backups of all domains below the admin, including resellers.