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Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
OL-8723-19
Chapter 16 Disaster Recovery Procedures
Automatic Restart
Automatic Restart Processing
Automatic restart processing is not always desired, or possible.
lists the platform restart
actions for the OOS-FAULTY state. The restart actions fall into one of three categories:
•
SDAMR (Shut Down and Manually Restart)—These scenarios are handled the same way as the
OOS-FAULTY behavior for earlier releases of the BTS 10200. The platform will shut down and wait
for manual restart. All initialization-related processing (bringup) is treated this way.
•
SDAAR (Shut Down and Automatically Restart)—These are the scenarios in which an automatic
restart is attempted.
•
FISS (Fault-initiated Switch to Standby)—In these scenarios, a faster system-initiated switchover is
attempted.
The scenarios are grouped into PMG-initiated, KAM-initiated, and application-initiated. PMG and
KAM start the vast majority of shutdowns. For PMG-initiated and KAM-initiated, the shutdowns are
grouped by the state of the platform.
Table 16-2
OOS-FAULTY Behavior
Description
Result
PMG-initiated Shutdowns
Bringup
One or more processes did not come up to correct state.
1
SDAMR
Unable to open log file (/var/adm/events_to_<plat>).
SDAMR
During bring up to ACTIVE, one or more processes in a bad state.
SDAMR
During bring up to STANDBY, one or more processes in a bad state.
SDAMR
One or more processes in a bad state.
SDAMR
Active
A crashing process exceeded the restart rate.
See Note
2
Disk usage exceeded.
SDAMR
Swap space usage exceeded and mate ok.
SDAAR
IPC Memory usage exceeded and mate is ok. If mate not ok, no shutdown.
SDAAR
Standby
A crashing process exceeded the restart rate.
See Note 2
IPC memory usage exceeded and mate is ok. If mate not ok, no shutdown.
SDAAR
Disk usage exceeded.
SDAMR
Swap space usage exceeded and mate ok.
SDAAR
Switchover to Active
Switchover to active: failed to start all processes in ACTIVE.
SDAAR
Switchover to standby
Switchover to standby: failed to start all processes in STBY.
SDAAR
All States
Watchdog expires for a PMG thread–non-PMG threads handled by restart logic.
SDAAR
When PMG receives a SIGINT.
SDAAR