We have distributed cloud server architecture - storage, database and webserver. We have installed drush 8 on storage server, as there are project files. We do not have direct ssh to the database or webserver.
When I try to run e.g.
drush cc all on this storage server, response is error:
PDOException: could not find driver.
I suppose that problem is, that database server is remote (database is not on storage server), so drush cannot find SQL driver. Settings.php is configured correctly, site is running, only drush has problems.
I read more about drush aliases, or syncing, but I do not think, that this is the solution for my problem. Do you know how to solve this problem and how to use drush on this type of server infrastructure?
Thanks for your help.