What is openDCIM?

openDCIM is a web-based Data Center Infrastructure Management application originally developed at Vanderbilt University and now maintained by Scott Milliken at Oak Ridge National Laboratory. It tracks physical inventory of data center assets across multiple rooms and manages capacity for space, power, and cooling. Features include power outage simulation for fault tolerance, center of gravity calculations for cabinets, device templates with per-device overrides, optional cable mapping, equipment archival, and SNMP integration with intelligent PDUs and UPS units from vendors like APC, Geist, Liebert, and Server Technologies. The software runs on a LAMP stack (Apache 2.x, MySQL 5.x+, PHP 8.0+) with authentication via Apache or LDAP. A public demo is available at demo.opendcim.org. Licensed under GPL v3, the latest release is 26.01 from October 2024. The maintainer has announced retirement and is seeking a new maintainer.

Should you self-host openDCIM?

openDCIM scores 48/100 on selfhost.directory (how scoring works) and ranks #13 of 19 in Infrastructure Monitoring. It has 369 GitHub stars.

It shipped 1 stable release in the past year. The latest, 26.01, came out on 26 October 2026.

Setup is advanced: plan for several services and some ongoing maintenance. It is GPL-3.0-only-licensed and written mostly in PHP.

Its closest alternative on selfhost.directory is Beszel (81/100, 26 617 stars). It scores higher overall, so compare the two before you pick. See openDCIM vs Beszel side by side.

Features

Cable connection tracking
Capacity management
Center of gravity computation
Device template management
Equipment archival
Fault tolerance tracking
Graphical cabinet viewer
Hosting cost reporting
Intelligent PDU/UPS integration
Multi-room data center support
Network connection mapping
Physical asset inventory
Power connection mapping
RESTful APIListed as in-development feature

FAQ

Is it possible to get a support contract?

Yes, the project offers paid support contracts including remote support, training, custom development, and on-site workshops based on hourly rates.

Why are my pictures not taking up the full space allocated?

Images need to be saved at the correct aspect ratio (76:7 per rack unit) to display properly without distortion.

Help! I upgraded from version 3.x to 4.x (or later) and now my cabinets are blank!

This is caused by incorrect Apache rewrite rules. The stock .htaccess file works in a basic setup; check your rewrite rules against the example.

I can't get my apache configuration to work. Can you help me?

The project directs Apache configuration questions to the Apache community resources rather than providing direct support.

Why do I have to set up user authentication to use openDCIM? I'm going to be the only person using it.

Authentication is required because even if you're the only user now, others may need access in the future. Retrofitting access control later would be difficult.