This topic describes what you need to know
when you decide to use more than one call-home server.
To avoid a single point of failure, configure the HMC to use multiple
call-home servers. The first available call-home server attempts to
handle each service event. If the connection or transmission fails
with this call-home server, the service request is retried using the
other available call-home servers until one is successful or all have
been tried.
The connected HMC that has been identified by problem analysis
to be the primary analyzing console for a given managed system will
report the problem. This primary console will also replicate the problem
report to any secondary HMC. This secondary HMC must be recognized
on the network by the primary HMC. A secondary HMC is recognized by
the primary HMC as an additional call-home server when:
- The primary HMC is configured to use "discovered" call-home servers
and the call-home server is either on the same subnet as the primary
HMC or it manages the same system
- The call-home server has been manually added to the list of call-home
server consoles available for outbound connectivity
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