Online System Health Management - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Online System Health Management

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Online System Health Management
The Online Health Management System (system health) is a hardware fault detection and recovery
feature. It ensures the general health of switching, services, and supervisor modules in any switch in the
Cisco MDS 9000 Family.
The system health application runs on all Cisco MDS modules and monitors system hardware in a given
MDS switch. The system health application running in the standby supervisor module only monitors the
standby supervisor module—if that module is available in the HA standby mode.
See the
The system health application launches a daemon process in all modules and runs multiple tests on each
module to test individual module components. The tests run at pre-configured intervals, cover all major
fault points, and isolate any failing component in the MDS switch. The system health running on the
active supervisor maintains control over all other system health components running on all other
modules in the switch.
On detecting a fault, the system health application attempts the following recovery actions:
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Each module is configured to run the test relevant to that module. You can change the default parameters
of the test in each module as required.
Cisco MDS 9000 Family Configuration Guide
50-10
"HA Switchover Characteristics" section on page
Sends Call Home and system messages and exception logs as soon as it detects a failure.
Shuts down the failing module or component (such as an interface).
Isolates failed ports from further testing.
Reports the failure to the appropriate software component.
Switches to the standby supervisor module, if an error is detected on the active supervisor module
and a standby supervisor module exists in the Cisco MDS switch. After the switchover, the new
active supervisor module restarts the active supervisor tests.
Reloads the switch if a standby supervisor module does not exist in the switch.
Provides CLI support to view, test, and obtain test run statistics or change the system health test
configuration on the switch.
Performs tests to focus on the problem area:
Retrieves its configuration information from persistent storage.
Chapter 50 Monitoring System Processes and Logs
8-2.
OL-6973-03, Cisco MDS SAN-OS Release 2.x