IMM hangs after a sequence of Out-Of-Band flashes - IBM System x3850 X5, x3950 X5 (7145)

Troubleshooting

Problem

On System x3850 X5 or System x3950 X5 systems, the Integrated Management Module (IMM) hangs after a sequence of Out-Of-Band (OOB) flashes. Once this happens, users will be unable to log into the IMM Web interface, and the IMM will not respond to some webor Command Line Interface (CLI) commands. This is an intermittent issue not likely to occur.

Resolving The Problem

Source

RETAIN tip: H202788

Symptom

This is an intermittent issue not likely to occur.

Affected configurations

The system may be any of the following IBM servers:

System x3850 X5, type 7143, any model
System x3850 X5, type 7145, any model
System x3850 X5, type 7146, any model
System x3850 X5, type 7191, any model
System x3950 X5, type 7145, any model

This tip is not software specific.

This tip is not option specific.

The following system firmware level(s) are affected:

IMM yuooA6a

Solution

None, this is a permanent restriction, see the Workaround section.

Workaround

If this issue occurs, the IMM needs to be reset. This can be done using telnet CLI, IPMItool, or any in-band tool.

Telnet CLI:

	telnet <host Internet Protocol (IP)> (login) resetsp

IPMItool:

	ipmitool -H <host IP> -U <username> -P <password> mc reset cold

Additional Information

This symptom was identified during internal testing and was not able to be recreated after many attempts.

If this issue occurs in the field, the client should contact IBM support, open a case, provide configuration details, operating system, and firmware code levels so that IBM can attempt to recreate the issue, root cause and provide a fix if possible.

Document Location

Worldwide

Operating System

System x:Operating system independent / None

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