We currently have SQL 2008 servers (some clustered, some not) where we are looking to have no downtime for maintenance operations. I have been looking into load balancing technologies such as citrix netscalar which has sql server integration with
the product and no downtime capability for failover. I am curious as to why they recommend either replication (real-time changes??) or mirroring and not a cluster (they indicate single point of failure but do they mean that citrix cannot intercept the
failover since windows is controlling it vs mirroring?). Also, has anyone used netscalar (or other load balancing technologies) and what have the successes and issues that people have experienced in their environment.
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