Users Guide

Figure 5. Rear View of a Chassis, Showing the Location of the IOMs

Bank 1 (Slots A1, B1, C1) 2 Bank 2 (Slots A2, B2, C2)

CMC creates entries in both the hardware log and CMC logs for invalid hardware configurations.

For example:

• An Ethernet MC connected to a Fibre Channel IOM is an invalid configuration. However, an Ethernet MC connected to both an

Ethernet switch and an Ethernet pass-through IOM installed in the same IOM group is a valid connection.

• A Fibre Channel pass-through IOM and a fibre channel switch IOM in slots B1 and B2 is a valid configuration if the first MCs on

all of the servers are also fibre channel. In this case, CMC powers-on the IOMs and the servers. However, certain fibre channel

redundancy software may not support this configuration; not all valid configurations are necessarily supported configurations.

Fabric verification for server IOMs and MCs is performed only when the chassis is powered on. When the chassis is on standby

power, the iDRACs on the server modules remain powered off and thus are unable to report the server's MC fabric type. The

MC fabric type may not be reported in the CMC user interface until the iDRAC on the server is powered on. Additionally, if the

chassis is powered on, fabric verification is performed when a server or IOM is inserted (optional). If a fabric mismatch is

detected, the server or IOM is allowed to power on and the status LED flashes Amber.

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