The Oracle HA Decision Tree: RAC vs Data Guard vs Both
"We have RAC, so we're covered for DR." It's one of the most expensive sentences in Oracle operations, and I've watched variations of it play out more…
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Failover Sounds Good… Until It Doesn’t Work
“We have failover.” That sounds reassuring. But when real failure hits… many systems still go down — hard. Why? Because failover is easy to configure …