5190/5194 Modular Tape Subsystem Manual

Installing the Modular Tape Subsystem
5190/5194 Modular Tape Subsystem Manual—426878-002
3-50
Troubleshooting the Modular Tape Subsystem
(NonStop Himalaya K-Series Servers)
Yellow LED Not Lit on a BEB
Symptom Corrective Action
Yellow LED not lit inside BEB enclosure. 1. Make sure that both the tape drive CRU and
the 3216 logic board are powered on.
2. See Table 6-1
on page 6-2 for possible
causes.
3. Check the integrity of the fiber-optic cable
connection:
a. Inspect the cable connectors at the BIC
and BEB ends. Make sure the
connectors have not been forced in
backward. The connector keyway must
mate with the key in the receptacle.
b. Replace the cable or inspect the cable
for defects or kinks.
c. Make sure the cable maximum bend
radius of 10 centimeters (4 inches) has
not been exceeded.
d. If the yellow LED still does not light,
contact your service provider.
ACL Door Does Not Open
Symptom Corrective Action
ACL door does not open when ACL is
powered down.
1. Apply power to the tape drive CRU, unload
any cartridge in the drive, and reset the ACL
by pressing the RESET button until the
asterisk (*) appears on the message panel.
Then open the door.
2. Defeat the door lock mechanism manually.
See Unlocking the ACL Door When Power Is
Removed on page 4-20.
ACL Does Not Function Properly
Symptom Corrective Action
ACL does not respond to commands, or
it functions abnormally.
Contact your service provider.