by Ken Task.
Uhhh .... 'How much space will it take?' ... how could anyone answer that question?
How many courses do you have? If you pretend to restore a course one can see the backups you have for that course ... and the size of that course backup.
If you have a mysql tool, one could query the DB to see .mbz files and their metadata size:
mysql> use dbformoodle;
mysql> select contenthash,filename,filesize from mdl_files where filename like '%.mbz';
where 'dbformoodle' is your DB for the moodle.
How much free space do you have?
Path ... in linux ... typically the /home partition of the drive is the largest ... so
mkdir /home/coursebackups
would be the command to create the directory.
Make sure that directory is writable by the web service user.
'SoS', Ken