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Initialization and Recovery
Page 4-1
4
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
4
4
Initialization and Recovery
When the system is powered up, or when it experiences a catastrophic fault that
interrupts its basic functions, the system undergoes a reboot. Besides “reboot,”
there are several less severe resets available to the system that allow it to recover
from disrupting errors. The user can initiate these resets by using the reset
system commands. These commands are used to manually restart the system at
various levels, depending on the required test activity. The reset system
commands are discussed in Chapter 8, ‘‘
Maintenance Commands and
Trouble-Clearing Aids’’.
A system is reset due to a loss of power, or via one of the following:
■ Reset commands at the administration terminal.
■ Maintenance software, from which the system can reset itself. (This
process starts when certain software and hardware errors are detected by
the software.)
■ “Interchange,” which is a type of reset that can be scheduled as part of
daily maintenance in High or Critical Reliability systems.
!
WARNING:
When the system is rebooted or reset at level 2, 3, 4, or 5, all voice
terminal and attendant console features are adversely affected.
Users should be advised of services that are lost and that, as a
result, must be reactivated. See “Removing Power” in Chapter 5,
‘‘Routine Maintenance Procedures’’.
The administration terminal display and circuit pack LEDs indicate the progress
of the recovery process. LEDs are discussed in Chapter 7, ‘‘
LED Interpretation’’.