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Dell PowerEdge M1000e Chassis Management Controller Firmware Version 5.1 User’s Guide

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I/O Aggregator Module

You can view details of the IOM and Flex Modules on the CMC RACADM, and Chassis Health , I/O Module Status, and I/O Module Overview pages.

CMC reports information about the flex modules in the IOA by reading the flex module information during its initial negotiation with the IOA. The reading happens by sending XML commands during the initial negotiation. CMC saves the flex module information in the shared memory. There can be a maximum of two flex modules:
  • FlexIO Module 1
  • FlexIO Module 2
All IOM software that support the command revision 4 support the Flex IO module information XML command. CMC sends the flex module information only if the command revision is 4 or later. Any failure to read the flex module information is stored in the Chassis Log.
The flex module information can have the following five values:
  • 4x10G Base-T FlexIO Module = 0
  • 4x10G SFP+ FlexIO Module = 1
  • 2x40G QSFP+ FlexIO Module = 2
  • 4xFC FlexIO Module = 3
  • No flex module installed = 4

Any value greater than 4 is considered invalid. CMC displays as “Invalid/Unknown” flex module.

The modes of the IOM are as follows:
  • Standalone
  • VLT
  • Stacking
  • PMux
  • Full Switch

You can view the IOM mode as a tool tip when you select IOM on the Chassis Health, I/O Module Status , and I/O Module Overview pages.

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