Sdiop-Pip21 - IBM iSeries Series Hardware Problem Analysis And Isolation

v No: Select Work with disk unit recovery —> Disk unit problem recovery procedures, and
continue with the next step.
9. Select Initialize and format disk unit.
10. Follow the online instructions to format and initialize the disk units.
11. Perform an IPL from disk. Does the IPL complete successfully?
v No: Go to "Starting point for all problems" on page 2.
This ends the procedure.
v Yes: This ends the procedure.
SDIOP-PIP21: For use by authorized service providers.
Use this procedure to determine the failing disk unit when, a disk unit is not compatible with other disk
units in the disk array, or when a disk unit has failed. The disk array is running, but it is not protected.
You were sent to this procedure from a unit reference code (URC) of 9025 or 9030.
1. If the system has logical partitions, perform this procedure from the logical partition that reported the
problem. To determine if the system has logical partitions, go to Determine if the system has logical
partitions, before continuing with this procedure.
2. Is the device location information for this SRC available in the Service Action Log (see "Use the
service action log" on page 7)?
v Yes: Exchange the disk unit. See Start disk service here.
This ends the procedure.
v No: Continue with the next step.
3. Access SST/DST by doing one of the following:
v If you can enter a command at the console, access system service tools (SST). See System
Service Tools (SST) in the iSeries Service Functions
v If you cannot enter a command at the console, perform an IPL to DST. See Performing an IPL to
DST in the iSeries Service Functions
4. Access the Product Activity Log and display the SRC that sent you here. Press the F9 key for address
information. This is the I/O card address.
Note: There may be more than one entry with the same Log ID. Entries with the same Log ID may be
accessed by pressing the Enter key from the "Display Detail Report for Resource" screen.
Example: There may be a device specific SRC and/or an xxxx902F SRC entry in the Product Activity
Log. The xxxx902F SRC will occur if there are more than 10 disk units in the array.
Continue with the next step.
5. Perform the following:
a. Return to the SST or DST main menu.
b. Select Work with disk units —> Display disk configuration —> Display disk configuration
status.
c. On the Display disk configuration status display, look for the devices attached to the I/O card that is
identified in step 4 (See page 201).
d. Find the device that has a status of "DPY/Unknown" or "DPY/Failed". This is the device that is
causing the problem. Show the device address by selecting Display Disk Unit Details —>
Display Detailed Address. Record the device address.
e. See Locations and addresses and find the diagram of the system unit, or the expansion unit and
find the following:
v The card slot that is identified by the I/O card direct select address
v The disk unit location that is identified by the device address
information.
information.
Analyze hardware problems
201