Moodle in English

Not sure what '...Moodle data is in a business environment' means technically but assume that means moodledata is either another dedicated internal only server or a file system of some sort on an internal only server.

If one looks at the config-dist.php file one can see some config items that relate to moodledata/temp/

// It is possible to specify different cache and temp directories, use local fast filesystem
// for normal web servers. Server clusters MUST use shared filesystem for cachedir!
// Localcachedir is intended for server clusters, it does not have to be shared by cluster nodes.
// The directories must not be accessible via web.
//
//     $CFG->tempdir = '/var/www/moodle/temp';        // Directory MUST BE SHARED by all clsuter nodes.
//     $CFG->cachedir = '/var/www/moodle/cache';      // Directory MUST BE SHARED by all cluster nodes, locking required.
//     $CFG->localcachedir = '/var/local/cache';      // Intended for local node caching.

There have been some Moodle admins who had moodledata on the web server and most subdirs there ... like temp/backup/  which is used by both backup and restore for building backups or for un-archiving  right on the web server.

The only folder/directory that was not really in moodledata on the web server was filedir where moodle actually stores files.  That directory was on segment of the internal network dedicated to file storage.  The entity made no exceptions to that setup.

Have seen one moodle setup that way and one could tell it was just a little slower when doing something that accessed those file but not really a bottleneck.

'spirit of sharing', Ken 

Yeh - we're going to need a proper description of your configuration. Skip the marketing terminology please

I suspect something a bit unusual...