With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sysHighAvailabilityNotRunningReason
sys High Availability Not Running Reason
1.3.6.1.4.1.9.5.1.1.61
feature is not running when the value of sysHighAvailabilityOperStatus is notRunning(2). The value of this object is empty string when the value of sysHighAvailabilityOperStatus is running(1). This object is supported in systems with High System Availability feature support.
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor sysHighAvailabilityNotRunningReason on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.