Date: Sun, 07 Jan 96 19:56:32 PST From: Ben Jackson <bjj@sequent.com> To: Wilko Bulte <wilko@yedi.iaf.nl> Cc: roberto@keltia.freenix.fr (Ollivier Robert), mrcpu@cdsnet.net, hackers@freebsd.org Subject: Re: Number of superblocks on big disks. Message-ID: <199601080356.TAA11113@eng4.sequent.com> In-Reply-To: Your message of "Sun, 07 Jan 96 21:33:57 PST." <199601072033.VAA02775@yedi.iaf.nl>
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In message <199601072033.VAA02775@yedi.iaf.nl> , you wrote: > > Ever used SunOS's newfs to make a 2 GB partition ? *That* takes > > forever. FreeBSD's newfs is blazingly fast in comparison :-) > > I think SunOS does some kind of inode randomisation. Supposedly to > get better NFS security ?? There is an NFS attack that involves guessing the filehandles of the files you want. Since a fh is based on the inode number, Sun did make this harder by randomizing the inodes. I doubt this is really why it takes longer, though. A quick look at the source to FreeBSD newfs suggests that contrary to the manual page, we default to `-i 4096'*, wheras SunOS is defaulting to `-i 2048', which would spend twice as much time writing inodes. * fsize defaults to pp->p_fsize, which defaults to 1k, and density defaults to NFPI (4) * fsize => 4096. --Ben
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