Date: Sat, 17 Jan 2015 22:07:31 -0500 From: Brian N <fbsd@iozz.us> To: Sean Chittenden <seanc@groupon.com> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS scrub on new disks gives cksum errors Message-ID: <20150118030731.GA6247@iozz.us> In-Reply-To: <CACfj5vLXnAZgkbGnw-B0GTAsj7cHh097zzig54rcAUt=7PFHoA@mail.gmail.com> References: <20141208155230.GA574@iozz.us> <5485CB35.5010608@multiplay.co.uk> <CACfj5vLXnAZgkbGnw-B0GTAsj7cHh097zzig54rcAUt=7PFHoA@mail.gmail.com>
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On Mon, Dec 08, 2014 at 09:09:51AM -0800, Sean Chittenden wrote: > I had this exact problem at home on my FreeNAS host when a box is plugged > in to residential power that is "not clean." If you plug this host in to a > UPS it should clear things up instantly (find a sine wave UPS, not a > digital stepping supply). There's something about the fluctuating power or > brownouts that ZFS is well suited to detecting (and became terrifying to me > because wtf happened in the past pre-ZFS??). FWIW, I've tested the two drives attached to another PC with UPS clean power and have not seen the aforementioned errors. Not a scientific finding but moving to a UPS power source may have fixed my issue. Thanks.
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