Re: Large Databases redux

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