Date: Fri, 18 Aug 1995 15:08:15 -0400 (EDT) From: -Vince- <vince@penzance.econ.yale.edu> To: Bruce Evans <bde@zeta.org.au> Cc: gary@palmer.demon.co.uk, freebsd-hardware@FreeBSD.org, john@zyqad.co.uk, msmith@atrad.adelaide.edu.au, rgrimes@gndrsh.aac.dev.com Subject: Re: Upgrade to my machine Message-ID: <Pine.LNX.3.91.950818150701.20512I-100000@penzance.econ.yale.edu> In-Reply-To: <199508131432.AAA29997@godzilla.zeta.org.au>
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On Mon, 14 Aug 1995, Bruce Evans wrote: > >> I forgot who mentioned on the list that 4 GB was the limit. What > >>brand is the 9GB SCSI on news.cdrom.com? > > >Sorry? They're lying/mistaken. It used to be a 2GB limit (not 4 - they > >were unsigned ints), but that restriction vanished quite a while ago > >(somewhere between 2.0 and 2.0.5). AFAIR, it's now 1TB. > > The limit for disk addresses used to be 4GB (not 2 - they (sic) were > unsigned ints), due to localized bugs in the disk block to byte > conversion macros. This was fixed quite a while ago. Now the limit is > 31 bits of disk block address and 9 bits of DEV_BSIZE size for a total > of 2^40 = 1TB. > > The limit for file sizes and mmap offsets and/or addresses is 2GB due > to sign extension bugs everywhere. Oh okay, so I wonder when drives that size will be available? Cheers, -Vince- vince@kbrown.oldcampus.yale.edu - GUS Mailing Lists Admin UCLA Physics/Electrical Engineering - UC Berkeley Fall '95 SysAdmin bigbang.HIP.Berkeley.EDU - Running FreeBSD, Real UN*X for Free! Chabot Observatory & Science Center - Board of Advisors
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