Reply To: High Availability
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“Back in the day”, IBM Global Services typically would come in and do all the requirements analysis, etc., then put up a canned two node config.
Supposedly, with HA/XD, there is an “express” configuration option for the common two-node solution. (Think: no consulting fees for installation and setup.)
But for us, it *could* be the case that we would eventually have three machines, with intermachine “health check” heartbeats.
With the appropriate failover capability in the app, I would think three machines would be the minimum that could reasonably detect and lockout a failing node automatically.
Here is a link to the IBM Announcement letter for HA/XD
205085 IBM HACMP/XD expands its business continuity solution with
improved, simpler geographic-distance data mirroring and
disaster recovery (14.5KB)
