DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1496STBY-SPE (Standby SPE Maintenance)
9
Replacing SPE Circuit Packs
To replace any SPE circuit pack on a duplic ated system, always use the
"lock-and-power-down" proced ure described fully in Chapter 5. This proced ure
allows replacements without servic e disruption, and g uarantees that the system
is returned to full normal operation.
Memory Shadowing
Memory shadowing is used to keep the standby SPE’s memory content
up-t o-da te rel ative to the acti ve SPE’s m emor y. A stan db y SPE that has ju st
rebooted, exited loc k mode or just been released from b usyout must undergo
this full re-initialization. System software tracks the operation and raises a major
alarm when refresh failure occurs. If shad owing stays on, system software
automatically tries to refresh again 5 minutes later.
Generally, memory shadowing should always remain on u nless:
■The standby SPE is undergoing any restart.
■The ac tive SPE i s und erg oing a rest art le vel o f 2 or g reat er.
■The ac tive SPE i s loc ked .
■The standby SPE is busied out.
In any other situation, it is an error condition for shad owing to be off. The first two
situations are transitory and shadowi ng should automatically b e restored within
10 minutes. If shadowing has b een on for several minutes, it is an error cond ition
for th e stan dby not to be re fresh ed. A stand by SPE with n o cri tica l com ponent
alarms that is either not refreshed or does not have shadowing on should have
SOH level

not refreshed.

Busyout of the Standby SPE
The standby SPE can be placed i n the state of maintenance busyout with the
command busyout spe-standby. This creates the following c onditions:
■The SOH o f the s tand by SPE i s kep t art ific ially at lev el
partially-functional
regardless of the actual state of its c omponents.
■Memory shadowing is turned off. Standby memory content is not in
agreement with that of the active SPE
■A Warning alarm is raised against STBY-SPE with error type 18. This
Warning alarm supersedes all other alar ms against STBY-SPE.
■The status spe field Standby Busied? will display yes.