a. Record the location of the local load source disk unit.
b. Exchange the local load source disk unit using concurrent maintenance for the model or FC that
you are working on. (See “Remove and replace procedures” on page 2.)
Was
the disk unit exchanged successfully using the concurrent maintenance procedure?
v Yes: Go to step 9 (See page 544).
v No: Continue with the next step.
6. Ask the customer to stop all applications that are running on the system and power the system off
with the Power Down System command (PWRDWNSYS).
Was the local load source disk unit exchanged using the dedicated maintenance procedures?
v No: Exchange the failing local load source disk unit by using the dedicated maintenance
procedures for the model or FC that you are working on. (See “Remove and replace procedures”
on page 2.)
After exchanging the disk unit, go to “Recover remote load source” on page 557.
This
ends the procedure.
v Yes: Go to “Recover remote load source” on page 557.
This
ends the procedure.
7. Is the disk unit that is mirrored to the failing disk unit missing?
Note: If a disk unit is missing, a note at the bottom of the display with an asterisk (*) indicates the
unit missing from the configuration.
v Yes: Ensure that the customer is not running any jobs before performing the following:
a. Power off the system.
b. Go to LIC-PIP11 and use cause code 0002.
c. If you cannot determine why the unit is missing, contact your next level of support.
d. If you correct the missing disk unit problem, go to “Start disk service here” on page 540 to
locate and perform the correct recovery procedure.
This ends the procedure.
v
No: Does the disk unit that is mirrored to the failing disk unit have a status of ″Active″?
– No: Continue with the next step.
– Yes: Suspend mirrored protection on the failing disk unit by performing the following:
a. Return to the Work With Disk Units menu.
b. Select Work with disk unit recovery—>Suspend mirrored protection.
c. Follow the instructions on the display to suspend mirrored protection on the failing disk unit.
Continue with the next step.
8. Record the disk unit location for later use. Then exchange the failing disk unit. (See “Remove and
replace procedures” on page 2.)
Did the concurrent remove and replace procedure fail?
v Yes: Go to step 12 (See page 545).
v No: Continue with the next step.
9. Perform the following:
a. Select System Service Tools (SST).
If you cannot get to SST, select DST (see Dedicated Service Tools (DST) in the iSeries Service
Functions
).
Note: Do not IPL the system to get to DST.
b. Select Work with disk units—>Display disk configuration—>Display non-configured units.
544 Hardware (Remove and Replace; Part Locations and Listings)
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