I inherited an old Linux server (with a Penquin picture on it) which runs a web-based reporting software (Driller) which ties into my Sales databases. I have just received a message that it is at 5% free disk space - which is a problem.
I have zero knowledge of this system or how to access, manage, or maintain it. The original builder of the Server also built the custom program which resides on it but the guy had retired years ago (well before my time here). After my 3.5 years at this company I have discovered that no one to this day knows how to work on it - including the IT guy I work with who has been here for 9 years.
So, does anyone have any ideas as to how I can access this server and clean out the disk a bit? If it crashes then we are looking at about 200k and dozens of man-hours to replace the software that resides on it.