IBM B50 manual Scsi CD-ROM, Network Controller Problem

Error Code	Function	Repair Action/Possible Failing FRU
	/Description
21A00001	Test Unit Ready	Refer to 21A00xxx through 21A0004.
	Failed - hardware	1. Replace the SCSI device.
	error
		2. Replace the SCSI cable.
		3. Replace the SCSI controller.
		4. Replace the power supply.
21A00002	Test Unit Ready	Refer to 21A00xxx through 21A0004.
	Failed - sense data	1. Replace the media (Removable media devices).
	available.
		2. Replace the SCSI device.
21A00003	Send Diagnostic	Refer to 21A00xxx through 21A0004.	Replace the
	Failed	SCSI device.
21A00004	Send Diagnostic	Refer to 21A00xxx through 21A0004.	Replace the
	Failed - DevOfl cmd	SCSI device.
21E00xxx	SCSI Tape	Refer to error codes 21A00xxx through 21A0004 for a
		description and repair action for the specific “xxx”
		value.
21ED0xxx	SCSI Changer	Refer to error codes 21A00xxx through 21A0004 for a
		description and repair action for the specific “xxx”
		value.
21EE0xxx	Other SCSI device	Refer to error codes 21A00xxx through 21A0004 for a
	type	description and repair action for the specific “xxx”
		value.
21F00xxx	SCSI CD-ROM	Refer to error codes 21A00xxx through 21A0004 for a
		description and repair action for the specific “xxx”
		value.
21F20xxx	SCSI Read/Write	Refer to error codes 21A00xxx through 21A0004 for a
	Optical	description and repair action for the specific “xxx”
		value.

2200xxxx	Network Controller
	problem
22000001	Internal wrap test	Replace the adapter.
	failed.
22001001	Internal wrap test	Replace the adapter.
	failed.
22002001	Adapter failed to	Replace the adapter.
	complete hardware
	initialization.
22010001	Adapter failed to	Replace the adapter.
	complete hardware
	initilization.
22011001	Adapter failed to	Replace the adapter.
	complete hardware
	initilization.

Chapter 3. Error Code to FRU Index 3-5