DASD backplane cable deassertion message in SP log

Troubleshooting

Problem

The x3550 Baseboard Management Controller (BMC) log or Dynamic System Analysis (DSA) Intelligent Platform Management Interface (IPMI) events may log the following event: Cable / interconnect 3 (Cable/Interconnect - DASD BP Detect): Deassertion: Device Removed / Device Absent. The BMC parser will flag the event as a "DASD backplane cable removed" event. Issue occurs in BMC firmware update versions 1.42 (GFBT58AUS) and earlier

Resolving The Problem

Source

RETAIN tip: H186654

Symptom

The x3550 Baseboard Management Controller (BMC) log or Dynamic System Analysis (DSA) Intelligent Platform Management Interface (IPMI) events may log the following event:

	Cable / interconnect 3 (Cable/Interconnect - DASD BP Detect): Deassertion: Device Removed / Device Absent.

The BMC parser will flag the event as a "DASD backplane cable removed" event.

Issue occurs in BMC firmware update versions 1.42 (GFBT58AUS) and earlier

Affected configurations

The system may be any of the following IBM Servers:

System x3550, type 1013, any model
System x3550, type 1913, any model
System x3550, type 7978, any model

The system is configured with one or more of the following IBM Options:

ServeRAID-8k SAS Controller, option 25R8064
ServeRAID-8k-l SAS Controller, lption 39R8729

This tip is not software specific.

Solution

This message will be removed from the next iteration of BMC firmware.

The target date for this release is scheduled for second quarter 2009.

The file will be available from the IBM System x Support web site at the following URL:

	http://www.ibm.com/systems/support/

Additional information

This message is informational and can be ignored. The event is actually stating that the direct access storage device (DASD) cable was detected.

When power is removed and reapplied, the BMC is reset and it logs this event as it scans the DASD bus and detects cable connection to DASD backplane.

This message is similar to a double-negative statement: Deassertion of a disabled/removed device is the same as Assertion of an enabled/added device.

Document Location

Worldwide

Operating System

System x:Operating system independent / None

System x Hardware Options:Operating system independent / None

[{"Type":"HW","Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"QU01XHQ","label":"System x Hardware Options->ServeRAID->ServeRAID 8x->39R8729"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}},{"Type":"HW","Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"QU01YVY","label":"System x Hardware Options->ServeRAID->ServeRAID 8x->25R8064"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}},{"Type":"HW","Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"QU02DKY","label":"System x->System x3550->1913"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}},{"Type":"HW","Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"QU02QYU","label":"System x->System x3550->1013"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}},{"Type":"HW","Business Unit":{"code":"BU016","label":"Multiple Vendor Support"},"Product":{"code":"QUOEF4I","label":"System x->System x3550->7978"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}}]

Tips

DASD backplane cable deassertion message in SP log - IBM System x3550