Date: Fri, 18 Feb 2005 11:27:05 -0800 From: Julian Elischer <julian@elischer.org> To: Eric Anderson <anderson@centtech.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: newfs limits? 10TB filesystem max? Message-ID: <42164189.3060100@elischer.org> In-Reply-To: <421605D0.80302@centtech.com> References: <20050216224825.39102.qmail@web26807.mail.ukl.yahoo.com> <4213D046.4080001@centtech.com> <7579f7fb05021715344d661662@mail.gmail.com> <421605D0.80302@centtech.com>
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Eric Anderson wrote: > Matthew Jacob wrote: > >> BTW- be careful with very large filesystems on FreeBSD- at some point >> fsck can't check them. >> >> I built a sparse 5000TB filesystem which newfs'd and mounted okay, but >> was not possible to check with fsck. > I would be surprised fi you can check a 5TB filesystem From my tests on a full 1TB filesystem, it takes about 700MB of RAM in the fsck process PER TB. >> > > 5000TB?!?! How did you do that? > Does anyone know of a way to build a simulated filesystem, for testing > without a real 20TB disk array? > > Eric > >
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