Change the backup structure so all files and directories regarding one backup are located in one archive
It'd be easier for to have a directory created for each backup instead of having all the files in, for example, /var/lib/psa/dumps/.
For example, I'd like to have a structure like this:
backup_2011300010.tgz that contains all the files and directories for this backup.
Remote backups are already single-file archives. The same can be achieved by a workaround locally. In "Tools & Settings" > "Backup Manager" > "Backup Settings" check the box "Allow setting up FTP backup storage on the local server". Then configure any local FTP storage space of your choice, e.g. create a subscription just for the purpose of storing backups in it or use an existing subscription and create directory for the backups in it. Now configure your backups as "remote" backups but store them to the FTP address. This will create files that have all backup components in one single file, yet they are not stored on a different machine, but locally, and accessible much faster than if stored remotely.