IBM iSeries Series Hardware Problem Analysis And Isolation page 243

v Yes: Perform the following. You must complete all parts of this step before you press Enter.
a. Enter
WRKCFGSTS *DEV *TAP ASTLVL(*INTERMED)
(the Work with Configuration Status command) on the command line.
b. If the device is not varied off, select Vary off before continuing.
c. Select Vary on for the failing tape unit.
d. Enter
RESET(*YES)
(the Reset command) on the command line.
e. Press Enter.
This ends the procedure.
7. This step determines if the I/O processor for the tape unit gives support to other tape units or to a
disk unit.
Notes:
a. If you cannot determine the tape unit you are attempting to use, go to step 11 (See page 232).
b. System messages refer to other tape units that the I/O processor gives support to as associated
devices.
Enter
WRKHDWRSC *STG
(the Work with Hardware Resources command) on the command line.
Did you record an I/O processor (IOP) resource name in step 6 (See page 230)?
v No: Perform the following:
a. Select Work with resources for each storage resource IOP (CMB01, SIO1, and SIO2 are
examples of storage resource IOPs).
b. Find the Configuration Description name of the tape unit you are attempting to use, and then
record the Configuration Description names of all tape units that the I/O processor gives
support to.
c. Record whether the I/O processor for the tape unit also gives support to any disk unit
resources.
d. Continue with the next step.
v Yes: Perform the following:
a. Select Work with resources for that resource.
b. Record the Configuration description name of all tape units for which the I/O processor
provides support.
c. Record whether the I/O processor for the tape unit also gives support to any disk unit
resources.
d. Continue with the next step.
8. Does the I/O processor give support to any disk unit resources?
v No: Continue with the next step.
v Yes: The Reset option is not available. Go to step 11 (See page 232).
9. Does the I/O processor give support to only one tape unit?
v No: Continue with the next step.
v Yes: Perform the following:
a. Select Work with configuration description and press Enter.
b. Select Work with status and press Enter.
Note: You must complete the remaining parts of this step before you press Enter again.
Analyze hardware problems
231