Everyone is looking to squeeze more efficiency from storage. That’s why the
SNIA Networking Storage Forum hosted a live webcast last month “Compression: Putting the Squeeze on Storage.” The audience asked many great questions on compression techniques. Here are answers from our expert presenters, John Kim and Brian Will:
Q. When multiple unrelated entities are likely to compress the data, how do they understand that the data is already compressed and so skip the compression?
A. Often they can tell from the file extension or header that the file has already been compressed. Otherwise each entity that wants to compress the data will try to compress it and then discard the results if it makes the file larger (because it was already compressed).
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