Date: Fri, 09 Jun 2006 09:09:39 -0600 From: Scott Long <scottl@samsco.org> To: freebsd-fs@freebsd.org Subject: Re: heavy NFS writes lead to corrup summary in superblock Message-ID: <44898F33.3000304@samsco.org> In-Reply-To: <200606091053.k59ArYQs029626@lurza.secnetix.de> References: <200606091053.k59ArYQs029626@lurza.secnetix.de>
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Oliver Fromme wrote: > Mikhail Teterin <mi+mx@aldan.algebra.com> wrote: > > The FS is intended for very few very large files and was created > > with "newfs -b 65536 -O1" (no softupdates). > > Did you also increase the fragment size (-f option)? > The default is 2048 bytes, and I wouldn't expect a b/f > ratio of 32:1 to work very well. In fact I'm surprised > that you have so little problems. :-) > Oh shoot, I didn't even notice this part of his posting. Yes, anything more than an 8:1 ratio simply will not work. I don't recall if newfs is smart enough to automatically scale the frag size when only the block size is set, but if it's not then this is definitely a problem. Scott
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