Date: Sat, 12 Nov 2022 19:53:47 -0600 (CST) From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us> To: andy thomas <andy@time-domain.co.uk> Cc: freebsd-fs@FreeBSD.org Subject: Re: Odd behaviour of two identical ZFS servers mirroring via rsync Message-ID: <alpine.GSO.2.20.2211121949060.7126@scrappy.simplesystems.org> In-Reply-To: <alpine.BSF.2.22.395.2211112008220.30520@mail0.time-domain.net> References: <alpine.BSF.2.22.395.2211111709230.29479@mail0.time-domain.net> <CAOgwaMuoLQ9Er67Y%2B=q%2Bf9724v2WT3L5v5TZaRVXq%2B=1vEyJ%2BA@mail.gmail.com> <alpine.BSF.2.22.395.2211112008220.30520@mail0.time-domain.net>
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On Fri, 11 Nov 2022, andy thomas wrote: > Yes, I can confirm the rsync --delete option is being used and in fact, 'du' > reports some of the mirrored folders as having identical sizes on both > servers, mainly those containing only small amounts of data. I forgot to mention that a proven solution when using rsync is to use the '--inplace --no-whole-file' options. These options help rsync to avoid doing wasteful things when updating existing files on a ZFS filesystem. Bob -- Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
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