User Guide

DEFINITY Enterprise Communications Server Release 5

Maintenance and Test for R5vs/si

555-230-123

Issue 1

April 1997

Initialization and Recovery

Page 4-8Procedure for SPE-Down Mode

Procedure for SPE-Down Mode

Due to fatal hardware and software problems, it is possible for a system to go

into SPE-Down Mode. In this mode, the system invokes emergency transfer and

does not provide any other service. Moreover, while in this mode, the software

does not (or cannot) run at all. In a high or critical reliability system the system

goes into SPE-Down mode only when both SPEs go into SPE-Down mode.

There is an interface to the system by maintenance. The Processor circuit pack,

is responsible for maintenance in a standard reliability system. In a high or

critical reliability system, the maintenance is provided by the A-carrier

Duplication Interface (DUPINT-A) TN772 circuit pack with help from the

processor.

The administration terminal, which connects directly to the processor in a

standard reliability system and to DUPINT-A in a high or critical reliability system,

provides a very limited interface to the system. Technicians can display alarms or

restart the system. Only a subset of control complex alarms displays.

The following are sample displays for SPE-Down mode and the alarms

displayed.

Display for SPE-Down in a Standard Reliability system:

**************SPE DOWN MODE*************

You can display alarms and reset system(4).

SPE_DOWN->

Screen 4-1

and Screen 4-2 show all possible SPE-Down alarms in a standard

reliability system and in a high or critical reliability system, respectively.

Screen 4-1. Display Alarms Command

DISPLAY ALARMS:

Physical Logical On Alternate Alarm Date Date

Name Name Board? Name Type Alarmed Resolved

------ PROC_BD y ----- MAJOR ------ ------

------ MEM_BD_0 y ----- MAJOR ------ ------

------ M_BUS y ----- MAJOR ------ ------

------ MAINT* y ----- MAJOR ------ ------

------ NETCON_BD y ----- MAJOR ------ ------

------ TAPE_UNIT ------ ----- MAJOR ------ ------

------ NO_TAPE ------ ----- MAJOR ------ ------