User's Manual

360 I/O Fabric Management
Invalid Mezzanine Card (MC) Configuration
An invalid MC configuration occurs when a single server’s LOM or MC is not
supported by its corresponding IOM. In this case, all the other servers in the
chassis can be running, but the server with the mismatched MC card will not
be allowed to power on. The power button on the server will flash Amber to
alert a fabric mismatch.
For information about the CMC and hardware logs, see "Viewing the Event
Logs" on page 391.
Invalid IOM-Mezzanine Card (MC) Configuration
The mismatched IOM will be held in the power-off state. The CMC adds an
entry to the CMC and hardware logs noting the invalid configuration and
specifying the IOM name. The CMC will also cause the error LED on the
offending IOM to blink. If the CMC is configured to send alerts, it sends
e-mail and/or SNMP alerts for this event.
For information about the CMC and hardware logs, see "Viewing the
Event Logs" on page 391.
Invalid IOM-IOM Configuration
The CMC holds the newly installed IOM in powered-off state, causes the
IOM’s error LED to blink, and creates entries in the CMC and hardware logs
about the mismatch.
For information about the CMC and hardware logs, see "Viewing the
Event Logs" on page 391.
Fresh Power-up Scenario
When the chassis is plugged in and powered up, the I/O modules have
priority over the servers. The first IOM in each group is allowed to power up
before the others. At this time, no verification of their fabric types is
performed. If there is no IOM on the first slot of a group, the module on the
second slot of that group powers up. If both slots have IOMs, the module in
the second slot is compared for consistency against the one in the first.
After the IOMs power up, the servers power up, and the CMC verifies the
servers for fabric consistency.