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My experiments in building a home server capable of handling fast + consistent deduplication

10/10 would recommend-
This is a fantastic read and totally worth the time for anybody interested in dedupe on ZFS.
Despite criticism on the subject and explanation, I found this extremely enlightening.

It's clear look into my problems as I'm having at the moment (https://www.truenas.com/community/threads/pushing-smb-large-multi-gigabyte-files-to-the-nas-causes-a-large-transfer-to-slow-and-then-fail.105166/#post-729802) and it's as if a revealed truth were put before me. Even jgreco suggested this post (and we know the Grinch always speaks his mind).

I have EXACTLY the issues that this person dealt with and, with the others who are assisting me in my efforts to get a balanced and under-control server, this article was mentioned more than once.

Looking through it, I have noted more than a few issues with my build that have strangled throughput to a crawl and eventual SMB disconnect. Same with AFP (yeah, I have Macs and tried that approach too while it's still available in TNC 13x.

I'm VERY glad this is out there where blue-sky "research" is still shown to be valuable even when there seems to be no point to it.

Bravo Sir! And thank you.
very informative
Thank you for this writeup. I've removed dedup from my ZFS setup as I was beginning to see similar issues to this article on my dump device for VM backups. I probably would have spent way too much time troubleshooting this if I hadn't run across another posting, and this article.
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