Date: Wed, 20 Nov 2013 17:34:51 -0800 From: Julian Elischer <julian@freebsd.org> To: Steven Hartland <killing@multiplay.co.uk>, Matthew Ahrens <mahrens@delphix.com>, Marcus Reid <marcus@blazingdot.com> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: Defaults in 10.0 ZFS through bsdinstall Message-ID: <528D633B.6040104@freebsd.org> In-Reply-To: <D73108A73AA94C1EB7FBE5CFF7091E1F@multiplay.co.uk> References: <20131114173423.GA21761@blazingdot.com> <CAJjvXiFydawETqm78A-e%2Bfvnje4BwRurs3k03j4aQRQJBt3pEA@mail.gmail.com> <D73108A73AA94C1EB7FBE5CFF7091E1F@multiplay.co.uk>
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On 11/20/13, 3:35 PM, Steven Hartland wrote: > ----- Original Message ----- From: "Matthew Ahrens" > <mahrens@delphix.com> >>> I noticed a couple of things with the ZFS defaults that result from >>> using the new installer in 10.0-BETA3. >>> >>> One, atime is turned off everywhere by default. There was a >>> thread on >>> this list on June 8 with a subject of 'Changing the default for ZFS >>> atime to off?', and from what I can tell the idea of turning off >>> atime >>> by default was not a popular one. >>> >>> >> It would be a pity if people compared ZFS on FreeBSD vs UFS on FreeBSD >> (using the installer's defaults) and came to the conclusion that "Mail >> programs don't work on ZFS on FreeBSD, use UFS instead." I think >> it's well >> known that there are performance differences between ZFS and UFS, >> depending >> on your workload. If you choose defaults that cause there to be >> correctness differences, that could be detrimental. > > It would also be a pitty if users came to conclusion not to use ZFS > because > it wears their SSD's out much quicker than UFS does or performs much > worse. > > Having a sensible default that's correctly messaged is something to > be commended not discouraged because its not the tradition and for > those that don't bother reading they may have issues as that could > be said for any option. > > Its also not something that can't be changed in seconds either, so the > suggestion of /var with it enabled so default mail installs work > as normal and for those that choose to install mail folders else > where they need to read and learn, instead of peanalising every single > user gets my vote. I think the installer should make a point of asking the user what they need.. then they cannot complain if they chose something they don't want. > > Regards > Steve > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. > and the person or entity to whom it is addressed. In the event of > misdirection, the recipient is prohibited from using, copying, > printing or otherwise disseminating it or any information contained > in it. > In the event of misdirection, illegible or incomplete transmission > please telephone +44 845 868 1337 > or return the E.mail to postmaster@multiplay.co.uk. > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >
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