The following table represents specifications for Data Center environments I have managed both directly and indirectly. Ericsson and CSC were the owners of multiple Data Centers:
| Ericsson #1 | Ericsson #2 | Ericsson #3 (Colo) | Blockbuster | CSC #1 | CSC #2 | Aetna | UTD | |
|---|---|---|---|---|---|---|---|---|
| Square Feet (x1000) | 10 | 6 | 1 | 20 | 10 | 80 | 80 | 5 |
| Floor Type | Slab | Slab | Raised | Raised | Raised | Raised | Raised | Raised |
| Physical Security | Badge Reader, Man Trap & Sign In | Badge Reader, Man Trap & Sign In | Badge Reader & Security Desk Sign In | Badge Reader and Sign In | Badge Reader & Security Desk Sign In | Badge Reader & Security Desk Sign In | Badge Reader & Security Desk Sign In | Badge Reader |
| Cable Management | Overhead | Overhead | Under Floor | Under Floor | Under Floor | Under Floor | Under Floor | Under Floor |
| Substation Power Feeds | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 1 |
| HVAC⁄CRAC | (9) 20 Ton + House Air | (9) 20 Ton + House Air | (40) 20 Ton | (10) 20 Ton | (5) 10 Ton | (40) 20 Ton | (40) 20 Ton | (3) 20 Ton |
| UPS | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 1 |
| DC Power Plant | 2 | 2 | 2 | N⁄A | N⁄A | N⁄A | N⁄A | N⁄A |
| Genset | 1.5 MW | 1.5 MW | 1.5 MW | Dual 1.25 MW | Quad 1.25 MW | Quad 1.25 MW | Dedicated Power Plant | N⁄A |
| Fire Suppression | FM-200 | FM-200 | FM-200 | FM-200 | Halon | Halon | Halon | Halon |
| Other Fire Suppression | Preaction H20 | Preaction H20 | Preaction H20 | Dry Sprinkler | Dry Sprinkler | Dry Sprinkler | Dry Sprinkler | Dry Sprinkler |
| Distributed Computing | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Mid Range Systems | No | No | No | Yes | No | Yes | Yes | No |
| Mainframe | No | No | No | No | Yes | Yes | No | Yes |