IBM VERSION 5 SY44-5902-05 - Manual (Page 110)

2. You can test some workstations by using the Test Request function key while the
operating system Sign On display is shown.
3. See the specific device information for possible off-line tests that you can run.
Verify optical storage unit
You can check optical storage units for correct operation by performing the
verification procedure (see “Hardware Service Manager — Verify” on page 95).
Optical storage unit test descriptions
When you select the Verify option (see “Verification procedures” on page 95) on an
optical resource that supports a verification function, the test performs the
following:
v Writes to the test media if writeable (and supported).
v Reads the test media
v Verifies that the interface between the system and the optical storage unit is
valid
Verify diskette
You can check diskette subsystems for correct operation by performing the
verification procedure.
Diskette test descriptions
When you select the Verify option (see “Verification procedures” on page 95) on a
diskette resource that supports a verification function, the test performs the
following:
v Runs the diskette controller hardware test
v Reads a diskette to verify that the system data area is valid
v Runs simple operations to verify that the diskette unit is operating correctly
The test does not:
v Verify write operations for the diskette unit
v Calculate the number of read errors for a specific diskette
If the test fails, an entry might be created in the product activity log. Use the
information in the product activity log to assist in problem analysis (see Chapter 3,
“Product Activity Log” on page 99).
Verify tape
You can check tape subsystems for correct operation by performing the verification
procedure.
Tape test descriptions
When you select the Verify option on a tape resource that supports a verification
function (for example, type 6380), the test performs the following:
v Runs a read, write, or erase function on the tape.
v Tests the interface between the system and the tape unit.
v Runs simple operations to verify that the tape unit is operating correctly.
If the test fails, the system will display a message that describes the failure. An
entry might also be created in the product activity log. Use the message or the
information in the product activity log to assist in problem analysis (see Chapter 3,
“Product Activity Log” on page 99).
96 Service Functions V5R2