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Old 04-12-2011, 07:28 AM
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aviswanathan aviswanathan is offline
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18759 is recalled. So that need to be deactivated first. The latest SP of CM 5.2.1 is
https://support.avaya.com/css/appman...946074#summary
Expected failover/switchover times
System Platform High Availability Failover uses 30 seconds as a timeout interval of lost ping
replies upon which standby node will declare active node as dead (although it can be not
accessible, not running or blocked). When that period expires, the standby node executes a
takeover (that is, starts resources). Note that System Platform does not provide any web
interface to modify this interval.
In case of manual switchover or in case there is some state of the system that initiates
preemptive failover, the total time between start of the command and time when all resources are running on the standby node includes graceful shutdown of all resources and start of all
the resources:
stop of resources - up to 2 minutes. If this is machine shutdown, Communication
Manager takes about 4 minutes to shutdown
stop of resources - up to 5 minutes
start of resources - up to 5 minutes
resulting longest switchover time - up to 10 minutes
In case of failover due to total failure of the active node, the total time between the start of the
outage and time when all resources are running on the standby node includes detection interval
timeout and start of all the resources:
detect active node failure - 30 seconds
start of resources - up to 5 minutes
resulting longest switchover time - up to 5.5 minutes
Note:
Switchover time will vary depending on hardware in use and the specific template installed
on the system. Templates with more virtual machines will take slightly longer to switch over
due to multiple virtual machines booting simultaneously
Please open a ticket/SR with backbone if MBT is taking more than 10 minutes in manual failover or 5.5 minutes in case of a normal failover.
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