13. See the “Start” section of the 3570 service information.
Notes:
1. If the failing item is a failing item (FI) code, go to “Failing Items” on page 479
to determine which part number associated with the FI code is failing.
2. If the failing item is a type number, go to “Type, Model, and Part Number list”
on page 885 to determine the part number.
3. If the failing item is a symbolic FRU, go to “Symbolic FRUs” on page 495 to
determine the part number.
Reference Code Description/Action Perform all actions before exchanging Failing Items Failing Item
9020 I/O processor detected a SCSI bus configuration error
Before exchanging any parts, verify that the following conditions are not
present:
v Tape and DASD devices attached to an I/O processor that does not
support tape and DASD devices at the same time.
v A device type or model that is not given support.
UHZCNFG
DHZDEV
FI00130
9100 Interface error detected by I/O processor or by tape unit
Before exchanging any parts, do the following:
1. Ensure that an interposer is connected between the I/O processor and
the SCSI cable.
2. Ensure that the SCSI cable between the interposer and the device 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 end of the SCSI
cable.
DHZDEV
FI00131
05H3834
EXTSCSI
61G8324
9101 Fibre Channel interface error detected
If the attached device is an external device, do the following before
exchanging any parts:
1. Ensure that the Fibre Channel cable is correctly connected to the ports.
2. Clean the Fibre Channel connectors.
3. If there is a hub attached, verify that the hub is operational.
4. If there is a gateway device attached, refer to the gateway device
service documentation for additional problem analysis procedures.
5. refer to the tape device service documentation for additonal problem
analysis procedures.
FCIOA
FCDEV
FCCABLE
9102 Gateway device detected a SCSI interface error
Use the gateway device service documentation to analyze the problem.
DHZDEV
FCGATE
EXTSCSI
61G8324
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 an interposer is connected between the I/O processor and
the SCSI cable.
3. Ensure that the SCSI cable between the interposer and the device is
seated correctly, and that there are no bent or damaged pins on the
SCSI cable.
4. Ensure that a terminating plug is attached to the device end of the SCSI
cable.
DHZDEV
FI00131
05H3834
EXTSCSI
61G8324
3570
Chapter 2. Unit Reference Codes 143
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