Front control panel
The power status and the hard disk and network activity of the appliance can be read from its front control panel, as shown in the following figure.

| 1 | System health LED | 13 | Disk drive 4 |
| 2 | Disk activity LED | 14 | Disk drive 5 |
| 3 | Network link activity LED | 15 | Disk drive 6 |
| 4 | Unit identification button/LED | 16 | Disk drive 7 |
| 5 | Power button/LED | 17 | Disk drive 8 |
| 6 | Non-maskable interrupt (NMI) button | 18 | Disk drive 9 |
| 7 | USB 2.0 ports (2) | 19 | Disk drive 10 |
| 8 | Individual disk activity LED (green) | 20 | Disk drive 11 |
| 9 | Individual disk status LED (blue/amber) | 21 | Disk drive 12 |
| 10 | Disk drive 1 | 22 | Asset tag (a pullout mylar tag for customer use to add the server serial number or MAC address). |
| 11 | Disk drive 2 | 23 | Rack mount screw (2) |
| 12 | Disk drive 3 |