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for quite a few applications out there, the most important feature of the RAID is not even redundancy, but greatly improved write latency. Moreover – this is the thing which we cannot possibly get from software RAID (!).

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As a rule of thumb – I am trying to keep the size of OLTP DB small enough to fit into RAM of the OLTP DB Server.

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beware: “there are distros beyond the RedHat/Debian dichotomy – but if you’re reading this section looking for my advice on it – most likely you still have too little experience running Linux to look in that direction

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every time I disable Active Directory Service from a production server – I feel as a doctor who successfully removed a cancer tumor from a patient

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in both these cases we can be 100% sure that we’ll be deserializing this state on the executable which is identical to the executable which serialized the state.

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Even when comparing with home-grown code with per-field serialization, our Ultra-Fast Serialization still wins (up to 1.5x-2x)

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beware: “being able to handle 1Gbit/s in general”, and “being able to handle 1Gbit/s in 60-byte packets” are often two very different things

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any heavily-writing DB is going to be quite sensitive to the latency of writing to the database log