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Re: Large Databases redux

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On 03/21/12 3:20 PM, Martijn van Oosterhout wrote:
That, and a good RAID controller with BBU cache will go a long way to
relieving the pain of fsync.

even better than BBU cache is the newer 'flash backed caches'. works the same, but uses a supercap rather than a battery, and backs the cache up in a flashchip. typically 1GB cache on the newer SAS2 stuff. This way you don't need to replace the batteries in 3 years or whatever, or the complexities of having to move the raid card with the attached battery if the mainboard or chassis failed.

--
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast


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