Tu-Pip4 - IBM iSeries Series Hardware Problem Analysis And Isolation

command end successfully?
v No: Continue with the next step.
v Yes: This ends the procedure.
10. Record the SRC on the Problem summary form (see Problem summary form).
Is the SRC the same one that sent you to this procedure?
v Yes: You cannot continue to analyze the problem. Use the original SRC and exchange the FRUs.
Begin with the FRU which has the highest percent of probable failure (see the failing item list for
this reference code).
This ends the procedure.
v No: A different SRC occurred. Use the new SRC to correct the problem (see System Reference
Codes).
This ends the procedure.
TU-PIP4: For use by authorized service providers.
Use this procedure to reset an IOP and its attached tape units. Read the "Tape unit PIPs" on page 224
before continuing with this procedure.
If disk units are attached to an IOP, you must power off the system, then power it on to reset the IOP.
1. If the system has logical partitions, perform this procedure from the logical partition that reported the
problem. To determine if the system has logical partitions, go to Determine if the system has logical
partitions before continuing with this procedure.
2. Is the tape unit powered on?
v No: Continue with the next step.
v Yes: Perform the following:
a. Press the Unload switch on the front of the tape unit you are working on.
b. If a data cartridge or a tape reel is present, do not load it until you need it.
c. Continue with the next step of this procedure.
3. Verify the following:
v If the external device has a power switch, ensure that it is set to the On position.
v Ensure that the power and external signal cables are connected correctly.
Note: For every 8mm and 1/4 inch tape unit, the I/O bus terminating plug for the SCSI external
signal cable is connected internally. These devices do not need and should not have an external
terminating plug.
4. Did you press the Unload switch in step 2 (See page 230)?
v Yes: Can you enter commands on the command line?
– Yes: Continue with the next step.
– No: Go to step 11 (See page 232).
v No: Press the Unload switch on the front of the tape unit you are working on. If a data cartridge or
a tape reel is present, do not load it until you need it. Continue with the next step of this procedure.
5. Has the tape unit operated correctly since it was installed? If you do not know, continue with the next
step of this procedure.
v Yes: Continue with the next step.
v No: Go to step 11 (See page 232).
6. If a system message displayed an I/O processor name, a tape unit resource name, or a device name,
record the name for use in the next step. You may continue without a name.
Does the I/O processor give support to only one tape unit? If you do not know, continue with the next
step of this procedure.
v No: Continue with the next step.
230
iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and
Isolation