I'm creating a cheap JBOD box with ~7 IDE hard drives. However when you take into account 3 existing drives + 2 CD drives that are installed as well, I am out of mounting places inside the server.
Will I adversely affect or harm the drives if I just stack them on top of each other in the box? Before you ask if they are going to fall over, this box won't be moved and won't really be touched while its in use. Heat (should) be taken care of by the fans.
However I am worried about the vibrations that each drive will put out. Is this an actual issue?