IBM 7331, Installation Manual, Page: 39 / 62

Step 4. If the library power-on indicator lights and the display shows the
message,
Power On Selftest in Progress
, go to step 6 on page 21
Step 5. If the library control panel does not display information, call the 8mm
Tape Library service representative.
Step 6. Wait for Power-On Self Test (POST) to complete.
The following definitions are applicable to the library Power-On Self Test (POST):
A single 1 second beep Indicates the library Power-On Self Test (POST)
completed successfully.
Recoverable error Causes the library to beep once when the error is
encountered and to display the message,
Power On
Selftest Warning
and other information to further
identify the cause of the error. The library resumes
operation after 3 seconds.
Irrecoverable error The library Power-On Self Test (POST) stops and the
control panel display shows failure information to identify
the cause of the error. The library may also beep and
blink (power-on indicator) one of four sequences to
indicate a specific error. These errors are defined in the
7331 and 3449 8mm Tape Library Model 3xx Service
Guide.
Step 7. At the start of POST, the power-on indicator lights and the display shows
the message in Figure 18:
Figure 18. Power On Selftest in Progress Display
Power On Selftest in Progress
.
Chapter 2. 8mm Tape Library Installation
21