Users Guide

Table Of Contents
Managing Input Output Fabric
The chassis can have up to six I/O modules (IOMs), where each IOM is a pass-through or switch module. The IOMs are
classified into three groupsA, B, and C. Each group has two slotsSlot 1 and Slot 2.
The slots are designated with letters, from left to right, across the back of the chassis: A1 | B1 | C1 | C2 | B2 | A2. Each server
has slots for two mezzanine cards (MCs) to connect to the IOMs. The MC and the corresponding IOM must have the same
fabric.
Chassis IO is segregated into three discrete data paths: A, B and C. These paths are described as FABRICS and support
Ethernet, Fibre Channel, or InfiniBand. These discrete fabric paths are split into two IO Banks, bank one and bank two. Each
server IO adapter (Mezzanine Card or LOM) can have either two or four ports depending on the capability. These ports are
divided evenly to IOM banks one and two to allow for redundancy. When you deploy the Ethernet, iSCSI, or FibreChannel
networks, span their redundant links across banks one and two for maximum availability. The discrete IOM is identified with the
fabric identifier and the bank number.
Example: A1 denotes Fabric A in bank 1. C2 denotes Fabric Cin bank 2.
The chassis supports three fabric or protocol types. The IOMs and Mezzanine Cards in a group must have the same or
compatible fabric types.
Group A IOMS are always connected to the servers' on-board Ethernet adapters; the fabric type of Group A is always
Ethernet.
For Group B, the IOM slots are permanently connected to the first MC slot in each server module.
For Group C, the IOM slots are permanently connected to the second MC in each server module.
NOTE:
In the CMC CLI, IOMs are referred to by the convention, switch-n: A1=switch-1, A2=switch-2, B1=switch-3,
B2=switch-4, C1=switch-5, and C2= switch-6.
Related concepts
Fabric Management Overview on page 175
Invalid Configurations on page 176
Fresh Power-up Scenario on page 176
Monitoring IOM Health on page 176
Configuring Network Settings for IOMs on page 177
Managing VLAN for IOM on page 181
Managing Power Control Operation for IOMs on page 184
Enabling or Disabling LED Blinking for IOMs on page 184
Related tasks
Resetting IOM to Factory Default Settings on page 178
Topics:
Fabric Management Overview
Invalid Configurations
Fresh Power-up Scenario
Monitoring IOM Health
Viewing Input Output Module Uplink and Downlink Status Using Web Interface
Viewing Input Output Module FCoE Session Information Using Web Interface
Viewing Stacking Information for Dell PowerEdge M Input Output Aggregator
Configuring Network Settings for IOMs
Resetting IOM to Factory Default Settings
Updating IOM Software Using CMC Web Interface
IOA GUI
Input Output Aggregator Module
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