LAN Configuration and Management Manual

Introduction to the SLSA Subsystem
LAN Configuration and Management Manual—520469-012
2-18
Loss of an Adapter
When access to a SAC is lost, SLSA events are generated and stored in the
EMS log. The following events may indicate that the SAC has become
unavailable to a processor:
Loss of an Adapter
If both SACs on an adapter simultaneously become unavailable, the adapter is
unavailable to the system. In this case, the SLSA subsystem performs the same steps
described under Loss of Access of All Processors to a SAC on page 2-17 for both
SACs.
Loss of Media
If a TRSA port is disconnected from the network, clients are notified, the PIF is put in
the STARTING state, and the following EMS message is generated:
Clients are notified when the port connection is restored.
For other port types, the PIF remains in the STARTED state, clients are notified of a
change in the link pulse, and the following EMS message is generated:
Event Number Cause
4003 SAC unavailable.
4004 SAC state change. (A SAC that remains in the STARTING state for an
unreasonable length of time indicates a problem with the SAC.)
4011 SAC dump file created. (Occurs only if the AUTODUMP option is
enabled.)
Event Cause
4013, transient
fault number 3023
One or more of the following conditions cause this fault:
1. The Token Ring cable was pulled out
2. The MAU had a fault
3. The Token Ring cable had a fault
4. The transceiver had a problem
Event Cause
4013 The status of the link pulse changed.