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Currently, a lack of guarantees over latency and availability (no-one can guarantee against a cable getting dug up, for example) mean the cloud is becoming more popular but is not trusted for the most performance-hungry storage operations.
Despite that, the survey tells us customers want storage that can scale easily and that the cloud is where it will likely come from.
In the long term this will bring major changes in data storage, with cloud providers profiting from economies of scale in terms of buying storage hardware, and with capacity delivered via the cloud for all but perhaps the most sensitive workloads.
Footnote
* The joke, as I remember it, told in Britain in the 1970s, took a poke at the Irish. In it, an Irishman was offered three wishes. He asked for a glass of beer that re-filled itself. For his second wish, he asked for another.

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