Exchanging A Disk Unit With Mirrored Protection - IBM i 830 Repair Manual

5. Exchange the failing disk unit (see "Chapter 4. Removal and Installation
Procedures" on page 617). When finished, continue with the next step of this
procedure.
6. Perform the following:
a. Ask the customer to stop all active applications on the system and power
the system off with the Power Down System (PWRDWNSYS) command.
b. Perform an IPL to DST (see "Dedicated Service Tools (DST)" in the iSeries
Service Functions information).
c. Select the Work with disk units option.
d. Select the Work with disk unit recovery option on the Work with Disk Units
display.
e. Select the Rebuild disk unit data option.
f. Select the disk unit on the display that was installed in place of the failing
disk unit.
g. Rebuild the disk unit data. When the new disk unit is rebuilt, the display
shows that the status is complete (this may take 30 minutes or longer).
h. Press the Enter key after verifying that the status is complete.
7. Perform the following:
a. Return to the Use Dedicated Service Tools (DST) display.
b. Select the Perform an IPL option to complete the IPL.
8. Return to the procedure that sent you here.
This ends the procedure.

Exchanging a Disk Unit with Mirrored Protection

Definitions:
v Local load source - A disk used as the source for IPL data.
Primary Partition:
– For system models 270 and 820, this disk unit must be located in position
D01, D02, D03, or D04.
– For system models 830, 840, SB2 and SB3, this disk unit must be located in
position D31, D32, D33, or D34.
Secondary Partition:
– See 'Locating a Secondary Partition's Load Source From the Primary
Partition's Console' in the iSeries Service Functions information
v Remote load source - A load source disk unit that is not a local load source.
1. Display the disk unit status by performing the following:
a. Select system service tools (SST).
If you cannot get to SST, select dedicated service tools (DST) (see
"Accessing Dedicated Service Tools" in the iSeries Service Functions).
Note: If the customer is running applications on the system, do not power
Data Recovery and General System Information
off the system or IPL the system to get to DST.
If you cannot get to SST or DST, and the system fails during the IPL
to DST, the local load source disk unit may be in the wrong location
or in a failed state. SRCB1xx4504 is displayed during the IPL to DST
if a functional load source disk unit is failing or not in one of the
positions indicated by the local load source definition above.
Chapter 6. Data Recovery Procedures and General System Information
897