
Dell DD and PowerProtect Hardware 8.0 Features and Specifications
I/O modules
I/O module slot numbering
The eight I/O module slots are enumerated as Slot 0 (on the left when viewed from the rear) through Slot 7. Ports on an I/O module are enumerated as 0 through 3, with 0 being on the bottom.

- 1. Slot 0
- 2. Slot 1
- 3. Slot 2
- 4. Slot 3
- 5. Slot 4
- 6. Slot 5
- 7. Slot 6
- 8. Slot 7
I/O modules are only supported in fixed configurations. The fixed configurations define the exact slots into which the I/O modules may be inserted. The processors directly drive the eight I/O module slots, meaning all slots are full performance.
The non-optional SAS, NVRAM, and 10GBaseT I/O modules are allocated to fixed slots. The optional Host Interface I/O modules are used for front end networking and Fibre Channel connections. The quantity and type of these I/O modules is customizable, and there are many valid configurations.
slot map
I/O module slots 3–6 contain optional Host Interface I/O modules and can contain specific I/O modules or no I/O modules at all. Slot 0, Slot 1, Slot 2, and Slot 7 are populated with the required I/O modules and are not optional.
| Tier | Slot 0 | Slot 1 | Slot 2 | Slot 3 | Slot 4 | Slot 5 | Slot 6 | Slot 7 |
|---|---|---|---|---|---|---|---|---|
| DLH | NVRAM 8g Model 3 | Quad Port 10 GBase-T | Quad Port 6 Gbps SAS | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 6 Gbps SAS |
| DLH Extended Retention/DD Cloud Tier | ||||||||
| DLH High Availability | NVRAM 8g Model 3 | Quad Port 10 GBase-T for HA interconnect | Quad Port 6 Gbps SAS | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 10GbE SR, Quad Port 10 GBase-T, or Dual Port 16 Gbps Fibre Channel | Quad Port 6 Gbps SAS |