IBM iSeries 270 Service Manual page 559

c. Install a tape in the tape unit. The Specify Volume Identifier prompt appears.
d. Enter the volume identifier for the tape. Write down the tape volume identifier. You will use the
tape volume identifier later in this procedure. The Select Tape Unit prompt appears.
e. Select the tape unit that you loaded with a tape. The Function Status display shows the percent of
disk data saved.
Note: If the tape volume identifier that you entered does not match the tape volume identifier on
the tape you loaded, the Device Intervention Required prompt appears. The message "Wrong
volume loaded" appears at the bottom of the display. Select the Format option and press Enter to
continue the save operation.
f. If the tape is full, the Device Intervention display appears. The message "Load next volume"
appears at the bottom of the display. Insert the next tape into the tape unit and select the option to
retry, and then press Enter to continue the save operation.
g. Continue saving the disk unit data until the status of the save is complete.
Note: Customer data is not recoverable if one of the following occurs:
v The copy operation does not complete.
v A large number of unreadable pages must be copied from the disk unit.
Continue with the next step.
4. Does the display show that the status of the save is complete?
v No: Continue with the next step.
v Yes: Go to step 6 (See page 547).
5. Have you already exchanged the storage IOA?
v Yes: Continue with the next step.
v No: Perform the following:
a. Power off the system.
b. Exchange the storage IOA. (See "Remove and replace procedures" on page 2.) If you do not
know the part number, see "Type, model, and part number list" on page 520.
c. Perform an IPL to Dedicated Service Tools (DST). See Dedicated Service Tools (DST) in the
iSeries Service Functions
information. Select one of the following:
– If the same system reference code (SRC) occurs, go to step 6 (See page 547).
– If a different SRC occurs, use it to correct the problem. (See System Reference Codes.)
– If no SRC occurs, then the problem was solved by exchanging the IOA.
This ends the procedure.
6. Power off the system and exchange the failing disk unit. (See "Remove and replace procedures" on
page 2.)
7. Did you just exchange disk unit 1 in the system unit?
v Yes: Go to step 9 (See page 548).
v No: Format and initialize the new disk unit by doing the following:
a. Perform an IPL to DST. See Performing an IPL to DST in the iSeries Service Functions
information.
If any messages regarding missing disk units appear, ignore the message.
b. From the Use Dedicated Service Tools (DST) display, select the Work with disk units—>Work
with disk unit recovery—>Disk unit problem recovery procedures—>Initialize and format
disk unit.
Analyze hardware problems
547