Tape Unit Self-Test Procedure - IBM i 830 Repair Manual

Does the power-on self-test complete successfully?
No Yes
↓
Retry the alternate installation.
This ends the procedure.
10. Go to the service information for the specific alternate installation device to
correct the problem. Then retry the alternate installation.
This ends the procedure.
11. Was a device error recorded in the Product Activity Log?
No Yes
↓
See "Chapter 2. Unit Reference Codes" on page 59 to correct the
problem.
This ends the procedure.
12. Contact your next level of support.
This ends the procedure.

Tape Unit Self-Test Procedure

Introduction: The following procedure is designed to allow you to quickly
perform a complete set of diagnostic tests on a 4487 or 4587 (SLR100) tape unit,
without impacting iSeries 400 system operation. This test can also be used to verify
good performance of individual tape cartridges.
Enter Diagnostic Mode:
1. Verify that a cartridge is not loaded in the tape unit. To unload a cartridge,
press the eject button on the front of the tape unit. If the cartridge does not
eject, refer to "Tape Cartridge – Manual Removal" on page 701 of this Problem
Analysis Guide.
2. Press and hold the eject button for about 6 seconds, until the amber LED starts
flashing slowly, then release the button. The amber (left) LED will flash,
indicating that the tape unit is is waiting for a cartridge to be inserted.
Running the self-test:
3. Self-testing begins when a scratch data cartridge is inserted into the tape unit.
The Ready (left) LED will flash, indicating that self-testing is in progress.
Note: A cartridge must be loaded within 15 seconds -- otherwise, the tape unit
will automatically revert back to normal operation. If necessary, return to
step 1 to reenter diagnostic mode.
4. For fastest results, we recommend using an IBM SLR100 Test Tape (P/N
35L0967) which was originally provided with your iSeries 400 system.
Attention: Use a blank cartridge that does not contain customer data. During
this self-test, the cartridge will be rewritten with a test pattern and any
customer data will be destroyed.
Note: Use a cartridge that is not write-protected. If a write-protected cartridge
is inserted while the tape unit is in diagnostic mode, the cartridge will
be ejected -- see step 9 below.
Self-testing will only be performed using a write-compatible cartridge
type, and with a cartridge that is not damaged -- see step 9 below.
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
Tape Unit PIPs
461