Global Site Management vs openDCIM

Global Site Management (GSM) is data center infrastructure management software for operations, capacity planning and risk mitigation. Its listed tools cover hardware discovery, real-time power and environmental data, energy analysis, outlet control and power gear configuration. Planning features include capacity modeling, failure detection and alerts, device failure impact assessment, and measurements for custom groups. Asset management includes inventory, reservations, movement audits, documents, warranty management, CSV import and work orders. Norlinx says GSM connects IT and facility equipment—including PDUs, sensors, servers, switches and storage—using common protocols such as SNMP, JSON, BACnet and Modbus, and can accommodate others. The comparison also lists Microsoft Visio integration for floor plans and devices; GSMintegrate describes trouble-ticket connections such as Remedy. GSM is deployed on-premises. Listed requirements include 64-bit Windows, 8 GB available RAM, Microsoft SQL Server and Microsoft Visio Professional. The free GSMpowerlite plan is intended for smaller data centers and pilot programs; trials are generally free and last 30 days.

openDCIM is a free, web-based application for tracking data center inventory and managing physical infrastructure. Its stated goals include following assets across multiple rooms and managing space, power, and cooling. Custom image maps can show clickable cabinet zones with overlays for power, space, temperature, and weight capacity. The application maps power paths from devices through strips and panels to source feeds, and network links to devices classified as switches. It reports fault tolerance and can simulate the effect of a panel or source-feed outage. Integrations include intelligent power strips and UPS devices from APC, Geist Manufacturing, Liebert, and Server Technologies; OIDs can be updated for other manufacturers. Built on MySQL, it supports report building and exporting data to other applications. Multiple user-rights levels are available, with authentication through Apache or LDAP. It is GPL v3 software for on-premises use. Hosting requirements include Linux, Apache 2.x or higher with SSL, MySQL 5.x or higher, PHP 8.0 or higher, and a web-based client.