Users Guide

Figure 13. Rear View of a Chassis, Showing the Location of the IOMs
Table 39. Locations of IOMs at the rear of a chassis
1 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 congurations.
For example:
• An Ethernet MC connected to a Fibre Channel IOM is an invalid conguration. 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 bre channel switch IOM in slots B1 and B2 is a valid conguration if the rst MCs on all
the servers are also bre channel. In this case, CMC powers-on the IOMs and the servers. However, certain bre channel
redundancy software may not support this conguration; not all valid congurations are necessarily supported congurations.
Fabric verication 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 o 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. Also, if the chassis is
powered on, fabric verication 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 ashes Amber.
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