DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Initialization and Recovery
4-17SPE-Down Command Interface
4
2. As soon as initialization diagnostics begin to appear on the screen,
disconnect the MT cable from the STANDBY connector on the control
carrier.
3. Return the SPE-SELECT switches to their previous locked position.
When the standby is back up and cycling, the yellow LED on the Processor
circuit pack will begin flashing. It is then safe to unlock the SPE-Select switches if
they were relocked. At this point, the system should re-establish handshake
communication, turn on memory shadowing (assuming the standby is not busied
out), and perform a refresh of the standby SPE’s memory. These steps can be
monitored by using the
status spe
command at a terminal connected to the
ACTIVE terminal connector. When these steps have been completed, the
standby SPE should have a “functional” state of health and be fully in service.
If all tests pass, but the SPE does not return to service, there may still be
problems on the standby which escaped detection by SPE-down testing. In this
case, use the following steps, which describe a means of sequentially replacing
circuit packs that are the most likely source of the problem.
1. First determine if memory shadowing is disabling handshake. With the
standby locked, busyout the standby SPE; this prevents shadowing from
turning on.
2. Bring up the standby as described above (unlock, unplug the STANDBY
terminal and relock). If the yellow LED on the Processor fails to flash,
follow normal escalation procedures. After the yellow LED begins flashing,
unlock and monitor the recovery progress by repeatedly entering
status
spe
on a terminal connected to the
active
SPE. If handshake is not
established after 2 minutes, memory shadowing is not the problem.
Proceed to step 4.
3. Release the standby and follow the progress of the refresh with
status
spe
. If the refresh succeeds, the system should be fully functional. If the
onset of shadowing or refresh coincides with handshake failure, replace
the following circuit pack one at a time in the order shown and repeat this
procedure from step 1 each time. (Use lock-and-power-down and
DUP-CHL instructions).
a. Standby DUPINT
b. Standby PKT-INT
c. Standby MSSNET
d. Active DUPINT
If the problem persists, follow normal escalation procedures.
4. If handshake has not come up after 2 minutes, replace each of the
following circuit packs one at a time, in the order shown, and repeat this
procedure from step 1 each time:
a. Standby PKT-INT
b. Standby DUPINT
