TUPIP02

The write test is performed in TUPIP03.

1. If the system has logical partitions, perform this procedure from the logical partition that reported the problem (see Determining if the system has logical partitions).
2. Press the Unload switch on the front of the 8mm tape drive. Is a data cartridge present?
   • No: Continue with the next step.
   • Yes: Attempt to remove the data cartridge. Can you remove the data cartridge?
     • Yes: Continue with the next step.
     • No: The tape drive is the failing part. Go to (Tape cartridge - Manual removal). After removing the data cartridge, exchange the tape drive (see Locating FRUs). This ends the procedure.
3. Clean the tape drive by using the cleaning cartridge (part 16G8467). If the tape drive ejects the cleaning cartridge with the Disturbance light on, a new cleaning cartridge is needed. The tape drive unloads automatically when cleaning is complete. Cleaning takes up to 5 minutes.

   Is the Disturbance light on continuously?

   • No: Continue with the next step.
   • Yes: Repeat this step while using a new cleaning cartridge. If you are using a new cleaning cartridge and the Disturbance light does not go off, the possible failing part is the 8mm tape drive. Go to TUPIP03. This ends the procedure.
4. Is the Disturbance light blinking?
   • No: Continue with the next step.
   • Yes: Choose from the following:
     • If the 8mm tape drive is a type 6390, the possible failing part is the 6390 tape drive.
     • If the 8mm tape drive is a type 7208, the possible failing parts are:
       1. 7208 tape drive
       2. Power supply
       3. AMD

     Go to TUPIP03. This ends the procedure.

5. Perform the read self-test:
   Notes:
   1. The 8mm tape drive read self-test and hardware self-test can take up to 5 minutes to run.
   2. The tape drive runs the read self-test first. During the read self-test, the Read-Write light blinks, and the Disturbance and Ready lights are off.

   To start the read self-test and hardware self-test, insert the diagnostic cartridge (part 46G2660) into the tape drive. The following conditions indicate that the read self-test ended successfully:

   • The Read-Write light stops blinking.
   • The diagnostic cartridge ejects automatically.
   • The three status lights go on to indicate the start of the hardware test.

   Does the read self-test end successfully?

   • No: Does the tape drive eject the diagnostic cartridge?
     • Yes: Continue with the next step.
     • No: The tape drive is the failing part.

       Go to (Tape cartridge - Manual removal). After removing the diagnostic cartridge, exchange the tape drive (see Locating FRUs). This ends the procedure.

   • Yes: Go to step 8.
6. Is the Disturbance light blinking approximately four times per second?
   • No: Continue with the next step.
   • Yes: The possible failing part is the diagnostic cartridge (part 46G2660).
     • If this is your first time through this step, get a new diagnostic cartridge. Go to step 3 of this procedure to clean the tape drive again. Afterwards, run the read self-test and hardware self-test while using the new diagnostic cartridge.
     • If this is your second time through this step, the possible failing part is the 8mm tape drive. Go to TUPIP03. This ends the procedure.
7. The Disturbance light is blinking approximately once per second.
   • If the 8mm tape drive is a type 6390, the possible failing part is the 6390 tape drive.
   • If the 8mm tape drive is a type 7208, the possible failing parts are:
     1. 7208 tape drive
     2. Power supply
     3. AMD

   Go to TUPIP03. This ends the procedure.

8. The tape drive runs the hardware self-test. During the hardware self-test, the three tape drive status lights are on for 15 to 30 seconds. The three status lights go off when the hardware self-test ends successfully.

   Does the hardware self-test end successfully?

   • Yes: Continue with the next step.
   • No: When the hardware self-test does not end successfully, the following conditions occur:
     • The three status lights do not go off.
     • The Ready and Read-Write lights go off.
     • The Disturbance light blinks approximately once per second.

     Possible failing parts are:

     • If the 8mm tape drive is a type 6390, the possible failing part is the 6390 tape drive.
     • If the 8mm tape drive is a type 7208, the possible failing parts are:
       1. 7208 tape drive
       2. Power supply
       3. AMD

     Go to TUPIP03. This ends the procedure.

9. The read self-test and hardware self-test ended successfully.

   Was the user's original tape identified as the probable cause of failure?

   • Yes: Perform the following:
     1. Mark and date the data cartridge to indicate that it failed with a permanent error.
     2. Discard this data cartridge when:
        • Volume statistics (if available) indicate a problem with the data cartridge.
        • A total of three permanent errors have occurred with the same data cartridge.
     3. If possible, continue operations with a new data cartridge.

     Go to TUPIP03. This ends the procedure.

   • No: Go to TUPIP03. This ends the procedure.