Tape Library Failing Items
Notes:
1. To determine the failing items, go to “Failing Items” on page 479.
2. To determine the associated part numbers, go to “Type, Model, and Part
Number list” on page 885.
3. To determine the parts associated with symbolic FRUs, such as “ANYBUS”,or
“DEVTERM”,goto“Symbolic FRUs” on page 495.
Failing Item Description Document Description
3494 Library device IBM 3494 Maintenance Information, SA37-0270
DHADEVC 3490 Control Unit Licensed Internal Code Refer to I/O device service information
DHALIBC 3494 Library Manager Licensed Internal Code IBM 3494 Maintenance Information, SA37-0270
(3570) Tape Unit Reference Codes
A tape or a 3570 Tape Unit failure occurred.
Note: For tape device and IOP reset procedures, see “TU-PIP4” on page 453.
1. Is the operating system available and can you enter commands from the
command line?
Yes No
↓ Go to step 3 of this procedure.
2. Is OS/400 available on the system (see “Determining the Dominant Operating
System” in the iSeries Service Functions)?
No Yes
↓ Use the on-line problem analysis procedures to isolate the problem.
Use the WRKPRB (Work with Problem) command to determine if a
recent problem was entered in the problem log, or use the VFYTAP
(Verify Tape) command to run verification tests.
3. Verify that the 3570 is powered on.
4. Ensure that the 3570 SCSI address is set to 0.
5. Load the first tape.
6. Start a type D IPL from the system unit control panel.
7. Does the IPL complete successfully?
No Yes
↓ The problem has been corrected.
This ends the procedure.
8. Obtain another copy of the tape. Repeat steps 6 and 7 using the new tape. If
this does not correct the problem, continue with step 10.
9. Look at the 4 rightmost characters of the Data display for word 1. These 4
characters are the unit reference code.
10. If the amber light on the 3570 indicator panel is on continuously, see the
“Start” section of the 3570 service information.
11. See “SRC Address Formats” on page 936 to determine the IOP, IOA, and
device address.
12. Find the unit reference code in the following table.
3494
142
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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