There was a time when I knew a lot about the various storage technologies available for a database. It was important when designing a server around the various requirements for size and performance balanced against the limitations of hardware.

The rapid growth of solid state storage and the adoption of storage area networks have changed the game for many of us. We no longer care or think about storage. It's just a service that we consume in our databases, and while we might demand more IOPS capacity, we often don't worry too much about how that's provided to our systems.

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