We are currently considering the idea of having only 1 real OJS installation as a shared codebase, and let our other OJS installations just (symbolic) link to that. Of course, the writable directories (files, cache, public) and config.inc.php should be there for each installation, and each installation will have its own database. So, that would result in about 10 symbolic links per install to directories below /ojs2.
We think this could be a better solution than the multiple journal installation, especially when it comes to manipulations on the journal level, like backup and export.
Does anyone of you have experience in this direction?
May be there is already a thread about this? (I couldn't find it, although I thought i'd seen one a couple of years ago).