Maximum Supported Configuration For SAS Controllers
| Maximum Supported Configuration | SAS (MD 1000, MD 1120) | SAS (MD 1200, MD 1220) | SAS (MD 1400, MD 1420) |
| External controllers on each Server (a) | 2 | 2 | 2 |
| External connectors on each controller (b) | 2 | 2 | 2 |
| Enclosures per connector (c) | 3 | 4 | 4 |
| Total numbers of enclosures on a server (a x b x c) | 12 | 16 | 16 |