Date: Tue, 08 Jul 2008 14:44:41 -0700 From: Julian Elischer <julian@elischer.org> To: juri_mian@yahoo.com Cc: freebsd-fs@freebsd.org Subject: Re: 24 TB UFS2 reality check ? Message-ID: <4873DFC9.6000006@elischer.org> In-Reply-To: <336596.22193.qm@web45608.mail.sp1.yahoo.com> References: <336596.22193.qm@web45608.mail.sp1.yahoo.com>
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Juri Mianovich wrote: > > > --- On Tue, 7/8/08, Bakul Shah <bakul@bitblocks.com> wrote: > > >> I vaguely recall it was more like 700MB of memory per >> Terabyte on a 50% filled UFS2. Things may have improved >> in the three years since I did that. I don't recall >> the time >> to fsck but it was pretty bad! That was the main reason I >> switched from UFS2. > > > Why does fsck need to reserve all that memory in advance and hold it the entire fsck ? Is it necessary by definition, or could it be written to not require that ? > > > it doesn't reserve it .. that's how much data it builds up
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