Configuring the parent directory is located at /etc/psa/psa.conf and is set by DUMP_D.
# cat /etc/psa/psa.conf | grep -w DUMP_D
DUMP_D /var/lib/psa/dumps
To change the default backup server path, follow these steps:
Step 1: Create a folder that containing the backup:
mkdir /plesk_backups
Step 2: Open the /etc/psa/psa.conf file
Change the value of DUMP_D created at step...