Date: Sat, 19 Sep 2015 14:56:21 +0300 From: Sami Halabi <sodynet1@gmail.com> To: freebsd-fs@freebsd.org Subject: ZFS cpu requirements, with/out compression and/or dedup Message-ID: <CAEW%2BogbPswfOWQzbwNZR5qyMrCEfrcSP4Q7%2By4zuKVVD=KNuUA@mail.gmail.com>
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Hi everyone, I've been searching the documentation, wiki.. etc. but found no rule of thumb to CPU requirements to run ZFS fs. for memory there are few rules according to using dedup or not. rules of thumb I concluded are so far: 1. use compression lz4. 2. use checksum. 3. disable atime. from what i read the status of dedup is not that clear and seems there are bugs and better to avoid it? so according to 1-3 above what cpu requirements i need? is ATOM cpu like supermicro c2750/3/5/8 enough to run system of 20TB /40TB with 1-3 above? if dedup IS enabled would it still work fine? Thanks in advance, Sami halabi
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