(9427) Tape unit reference codes

A tape or tape library device failure occurred.

Note:
Use this table to handle reference codes that might be displayed during a type D IPL to install the operating system. If you are not performing a type D IPL of the operating system, consult any error logs that you find in the Serviceable Event View. If you cannot locate an error log in the Serviceable Event View that corresponds with the failure, run a verification test for the tape unit.
  1. Verify that the device has power.
  2. Check the device for any error indications. Refer to the device service information to resolve any error indications.
  3. Clean the recording head in the tape device.
  4. Attempt the failing operation again. Does the operation complete successfully?
    • Yes: You have corrected the problem. This ends the procedure.
    • No: Look at the 4 rightmost characters of the Data display for Function 11, which represent the unit reference code. Find the unit reference code in the following table.

For more on the Failing Item column entries, see Table 2. Tape unit failing items details, which follows the reference code table below.

Table 1. (9427) Tape unit reference codes

Reference Code Description/Action Perform all actions before exchanging Failing Items Failing Item
0001 Tape unit failure

Refer to the 9427 8mm Tape Cartridge Library Service Guide.

03xx Tape unit detected an error on the tape medium

Read (or write) errors may be caused by:

  • Poor or damaged tape
  • Dirty read/write heads
  • Damaged data cartridges
  • Using a data cartridge previously recorded in a format or density that is not correct
  • Using the wrong data cartridge (for example, one in a different format or density from another set of data cartridges)

Do the following:

  1. Clean the tape unit and retry the operation.
  2. If cleaning the tape unit does not correct the problem, exchange the tape media.

04xx Tape unit failure

The tape drive reported a hardware error to the IOP; the amber light on the tape drive may be blinking.

Refer to the 9427 8mm Tape Cartridge Library Service Guide.

3xxx Device or interface error.

Refer to the 9427 8mm Tape Cartridge Library Service Guide.

4016 to 4017 Licensed Internal Code for the tape unit is not correct
AJEDA00
9020 I/O processor detected a SCSI bus configuration error

Before exchanging any parts, verify that the following conditions are not present:

  • Tape and DASD devices attached to an I/O Processor that does not support attachment of both tape and DASD devices at the same time.
  • A device type or model that is not given support.
ULYCNFG
86G9251
FI00130
86G9254
9100 Interface error detected by I/O processor or by tape unit

Before exchanging any parts, do the following:

  1. Ensure that the device is powered on.
  2. Ensure that the SCSI cable between the device and the I/O Processor or I/O Adaptor is seated correctly, and that there are no bent or damaged pins on the SCSI cable.
  3. Ensure that a terminating plug is attached to the device.
86G9251
FI00131
86G9254
EXTSCSI
86G9255
86G9274
17G9134
FI00130
9200 I/O processor addressed the tape unit; no response

Before exchanging any parts, do the following:

  1. Ensure that the device is powered on.
  2. Ensure that the SCSI cable between the device and the I/O Processor or I/O Adaptor is seated correctly, and that there are not bent or damaged pins on the SCSI cable.
  3. Ensure that the terminating plug is attached to the device.
86G9251
86G9274
86G9254
FI00131
EXTSCSI
17G9134
87G1531
86G9255
9201 Tape unit command timeout

Before exchanging any parts, do the following:

  1. Ensure that the device is powered on.
  2. Ensure that the SCSI cable between the device and the I/O Processor or I/O Adaptor is seated correctly, and that there are not bent or damaged pins on the SCSI cable.
  3. Ensure that the terminating plug is attached to the device.
86G9251
FI00131
86G9254
EXTSCSI
17G9134
86G9255
86G9274
FI00130
9202 Tape unit failed after Licensed Internal Code was loaded

Before exchanging any parts, do the following:

  1. Ensure that the device is powered on.
  2. Ensure that the SCSI cable between the device and the I/O Processor or I/O Adaptor is seated correctly, and that there are not bent or damaged pins on the SCSI cable.
  3. Ensure that the terminating plug is attached to the device.
86G9251
86G9274
86G9254
9210 Illegal or unsupported tape unit response
86G9251
FI00130
FI00131
9300 Tape unit failure

The tape drive reported a hardware error to the IOP; the amber light on the tape drive may be blinking.

Perform TU-PIP2.
86G9251
LIBDEV
MLYTMED
86G9274
86G9255
9301 Tape device failure, redundancy lost

The tape device detected a hardware failure that does not prevent the tape unit from completed the current operation.

Refer to the Tape unit service information to determine the failing item.
86G9251
LIBDEV
MLYTMED
86G9274
86G9255
9302 Tape device failure or media error

The tape unit detected a failure that may be caused by a hardware failure or a media error.

Refer to the tape unit service information for possible information on diagnostic tests that can be run to isolate between hardware and media failures.
MLYTMED
86G9251
9310 Licensed Internal Code for the tape unit is not correct
86G9251
FI00130
9320 Tape device Licensed Internal Code failure
FI00130
86G9251
9350 Tape unit detected a read or write error on tape medium

A permanent read or write error occured. Clean the tape unit and retry the operation.

If cleaning the tape unit does not correct the problem, exchange the tape media.
MLYTMED
86G9251
9351 Tape with excessive error rate was mounted in tape device.

The tape unit detected that the mounted tape cartridge has a history of excessive read and write errors. It is recommended that you exchange the tape cartridge.
MLYTMED
ULYCLN
86G9251
9355 The data format is incorrect; the tape cannot be read

The tape unit has detected that the data format on the tape media is not supported.

Clean the tape unit and retry the operation.

If the operation continues to fail, use a different tape cartridge.
ULYUSR1
MLYTMED
ULYCLN
86G9251
9500 I/O processor Licensed Internal Code error

If the system is operational, perform a dump of the I/O processor data. For more information, see Performing an IOP dump using hardware service manager.
FI00130
9600 Equipment Check Failure on Library Device.

See library device service information to resolve the error.
LIBDEV
9800 to 9803 I/O processor successfully recovered from temporary error

No action required. This reference code is logged for information only.

9810 Problem analysis has determined a part should be replaced.

This reference code is used for ending Online Problem Analysis with a list of failing items. (Information only)

9899 Problem analysis completed, the problem has been corrected.

This reference code is used for ending Online Problem Analysis when no problem was found or the problem was corrected.
ULYFIXD
9900 Licensed Internal Code for tape unit was not upgraded

The I/O processor loading of Licensed Internal Code (LIC) to the programmable tape drive was not completed.

The tape drive will continue to operate with the previous LIC. You may do either of the following:

  • Wait for next IPL when the system will attempt to load the LIC for the tape drive again.
  • Perform TU-PIP4 to reset the IOP and the tape drive. When the IOP is reset, if the device has the wrong level of LIC, the IOP will attempt to load the new LIC.
ULYWAIT
FF09 Licensed Internal Code for tape unit was not upgraded

The I/O processor loading of Licensed Internal Code (LIC) to the programmable tape drive was not completed.

The tape drive will continue to operate with the previous LIC. You may do either of the following:

  • Wait for next IPL when the system will attempt to load the LIC for the tape drive again.
  • See the system service documentation to reset the IOP and the tape drive. When the IOP is reset, if the device has the wrong level of LIC, the IOP will attempt to load the new LIC.
ULYWAIT
FF4D I/O processor successfully recovered from temporary error

No action required. This reference code is logged for information only.

When the system is available, display the operator messages, find message CPI946B, and press F14 to run online problem analysis to see if the error threshhold has been exceeded.
86G9251
FI00141
EXTSCSI
17G9134
86G9253
86G9255
AJSLC01
FF5D I/O processor successfully recovered from temporary error

No action required. This reference code is logged for information only.

When the system is available, display the operator messages, find message CPI946B, and press F14 to run online problem analysis to see if the error threshhold has been exceeded.
86G9251
86G9253
EXTSCSI
FI00141
17G9134
86G9255
FFF6 Tape volume statistics logged (no action required)

No action required. This reference code is logged for information only.

FFF8 Asynchronous device attached; synchronous device expected

The attached device is operational and working in the asynchronous mode of data tranfer. The IBM tape unit uses the synchronous mode of data transfer; if the attached device is an IBM tape unit, exchange the tape unit.
86G9251
FFFE Tape unit detected a read error on the tape medium

Perform the Action for reference code 03xx.
MLYTMED
86G9251
86G9253
FFFF Tape unit detected a write error on tape medium

Perform the Action for reference code 03xx.
MLYTMED
86G9251

Table 2. Tape unit failing items details

Failing Item Description Document Description
17G9134 Terminating plug Magnetic tape subsystem service information
86G9251 Tape Drive 7208 Model 012 5.0GB External 8mm Tape Drive Service Guide
86G9251 Tape drive Magnetic tape subsystem service information
86G9253 Power supply Magnetic tape subsystem service information
86G9254 Controller logic card Magnetic tape subsystem service information
86G9255 Internal signal cable Magnetic tape subsystem service information
87G1531 Operator Panel/LCD Assembly Magnetic tape subsystem service information
AJSLC01 I/O processor Licensed Internal Code Service Functions; APAR or LICTR
EXTSCSI Cable assembly Problem Analysis; Symbolic FRU Isolation
LIBDEV Media Library Device Magnetic tape subsystem service information
MLYTMED Defective tape System operation information
ULYCLN Tape unit needs cleaning Magnetic tape subsystem operator's information
ULYCNFG Tape configuration detected by I/O processor; not valid Magnetic tape subsystem operator's information
ULYUSR1 Operator action required Magnetic tape subsystem operator's information
ULYWAIT Wait to next IPL or perform TU-PIP4 Problem Analysis
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