On 17/09/2013 15:22, Grant wrote: >>> Performance doesn't seem to be one of ZFS's strong points. Is it >>> considered suitable for a high-performance server? >> >> ZFS is one of the fastest FS I am aware of (if not the fastest). >> You need a sufficient amount of RAM to make the ARC useful. > > How much RAM is that? > > - Grant >
1G of RAM per 1TB of data is the recommendation. For de-duped data, it is considerably more, something on the order of 6G of RAM per 1TB of data. The first guideline is actually not too onerous. It *seems* like a huge amount of RAM, but a) Most modern motherboards can handle that with ease b) RAM is comparatively cheap c) It's a once-of purchase d) RAM is very reliable so once-off really does mean once-off -- Alan McKinnon alan.mckin...@gmail.com
