Colocation is a data center service that provides rack space, power, and bandwidth for a customer's own servers and storage hardware. While the customer retains full ownership and administrative control over the equipment, the facility provider supplies the necessary environment to keep the hardware running optimally. This includes redundant power feeds, industrial cooling, and multi-layered physical security.
Most professional facilities operate under Tier III or Tier IV standards, ensuring that maintenance can be performed without interrupting power to the racks. Connectivity is typically carrier-neutral, allowing clients to choose from multiple network providers or connect directly to major Internet Exchange points to minimize latency.
How it works
- The client ships or brings their hardware to the data center and installs it in a rented rack or private cage.
- The provider supplies power via PDUs and monitors environmental conditions like temperature and humidity.
- Management is handled remotely via IPMI/iDRAC or through on-site "Remote Hands" support for physical tasks like disk replacements.
For an enterprise, colocation is often more cost-effective than building a private on-site server room. A single rack can typically support 42U of equipment, with power density ranging from 5kW to over 20kW, providing the scalability needed for high-performance computing or large-scale database clusters.