IBM iSeries Series Hardware Problem Analysis And Isolation page 241

v No: Do you need to exchange the tape unit I/O processor?
– No: Continue with the next step.
– Yes: Exchange the tape unit I/O processor (see Remove and replace procedures). When you
have completed the remove and replace procedure, continue with the next step.
v Yes: Perform the following:
– For an internal tape unit, go to Removable media in Remove and replace procedures.
– For an external tape unit, go to the remove and replace procedures in the device service
information.
3. Are you working with a tape unit in the system unit or in an expansion unit?
v Yes: Is the system available, and can you enter commands on the command line?
– No: Continue with the next step.
– Yes: Go to step 9 (See page 229).
v No: Continue with the next step.
4. Display the selected IPL type (see iSeries Service Functions).
Is the displayed IPL type D?
v No: Do you want to perform an alternate IPL (type D)?
– No: Continue with the next step.
– Yes: Go to step 6 (See page 229).
v Yes: Go to step 6 (See page 229).
5. Perform an IPL from disk by doing the following:
a. Power off the system (see Power on/off the system and logical partitions).
b. Select IPL type A in manual mode.
c. Power on the system.
d. Go to step 8 (See page 229).
6. Place the first tape of the latest set of SAVSYS tapes or SAVSTG tapes, or the first IBM Software
Distribution tape in the alternate IPL tape drive. The tape drive automatically becomes ready for the
IPL operation (this may take several minutes).
7. Perform an alternate IPL by doing the following:
a. Power off the system.
b. Select IPL type D in Manual mode.
c. Power on the system.
8. The IPL may take one or more hours to complete.
Does an unexpected SRC appear on the control panel, and is the System Attention light on?
v No: Does the IPL complete successfully?
– Yes: Continue with the next step.
– No: Go to "Starting point for all problems" on page 2 to continue analyzing the problem.
This ends the procedure.
v Yes: Go to step 10 (See page 230).
9. Perform the following to test the tape unit:
a. Enter
VFYTAP
(the Verify Tape command) on the command line.
b. Follow the prompts on the Verify Tape displays, then return here and answer the following
question.
Does the
VFYTAP
Analyze hardware problems
229