Dell DD and PowerProtect Hardware 8.0 Features and Specifications

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I/O module population rules

The system chassis has eight slots for I/O modules. Slots 0, 1, 2, and 7 are reserved. Slots 3, 4, 5, and 6 support host interface I/O modules. The maximum supported number of any type of host interface I/O module is four.

NOTE:A maximum of three Quad Port 10 GBase-T I/O modules are supported in slots 3-6 because of the mandatory Quad Port 10 GBase-T I/O module in slot 1.

The following table assigns rules for populating the I/O modules.

Table 1. I/O module slot population rules
Step	I/O module name	Slots	Notes
Step 1: Populate mandatory I/O modules	NVRAM 8g Model 3	0	Mandatory for all configurations
	Quad Port 10 GBase-T	1	Mandatory for all configurations
	Quad Port 6 Gbps SAS	2	Mandatory for all configurations
	Quad Port 6 Gbps SAS	7	Mandatory for all configurations
Step 2: Populate all Quad Port 10GbE SR I/O modules	Quad Port 10GbE SR	3, 4, 5, 6	Populate starting from the lowest available slot number.
Step 3: Populate all Quad Port 10 GBase-T I/O modules	Quad Port 10 GBase-T	3, 4, 5, 6	Populate starting from the lowest available slot number. With Quad Port 10 GBase-T in slot 1, max number of Quad Port 10 GBase-T I/O modules are limited to 4.
Step 4: Populate all Dual Port 16 Gbps Fibre Channel I/O modules	Dual Port 16 Gbps Fibre Channel	6, 5, 4, 3	Populate starting from the highest available slot number.