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And ZFS deduplication consumes an absolutely frightening amount of RAM: 5GB of RAM per 1TB of storage is recommended.


Oh totally. ZFS gets a lot right but even ZFS can't make deduplication practical for all bar a few fringe cases.


That's not much. Our baseline config HP DL380s come with 64GiB RAM (!!)


File servers should really have Looooots of ram. after all its cheap cache (compared to a fusion io card) Our file servers have 384 gigs of ram. The next gen will probably have much more.




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