Date: Thu, 31 May 2001 23:18:41 -0500 From: Andrew Hesford <ajh3@usrlib.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Andrew Hesford <ajh3@usrlib.org>, Rick Hamell <hamellr@heorot.1nova.com>, Christoph Kukulies <kuku@gilberto.physik.rwth-aachen.de>, questions@freebsd.org Subject: Re: 2GB filesize limit? Message-ID: <20010531231841.B46862@core.usrlib.org> In-Reply-To: <20010531120721.F96927@xor.obsecurity.org>; from kris@obsecurity.org on Thu, May 31, 2001 at 12:07:21PM -0700 References: <200105310943.f4V9hgX04825@gilberto.physik.rwth-aachen.de> <Pine.BSF.4.21.0105300906180.38491-100000@heorot.1nova.com> <20010531114130.A45461@core.usrlib.org> <20010531120721.F96927@xor.obsecurity.org>
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On Thu, May 31, 2001 at 12:07:21PM -0700, Kris Kennaway wrote: > On Thu, May 31, 2001 at 11:41:30AM -0500, Andrew Hesford wrote: > > On Wed, May 30, 2001 at 09:06:54AM -0700, Rick Hamell wrote: > > > > What is currently FreeBSD's max file size? > > > > > > Maximum filesystem size is 2 gigablocks, maximum file size is 1 > > gigablock. > Actually the max FS size is 2^31 sectors (usually 512 bytes), not > blocks. That comes out to 1 TB. This is the maximum *partition* size. From /sys/ufs/ffs/fs.h, we have in the definition of "struct fs" the following: int32_t fs_size /* number of blocks in fs */ Hence a filesystem can have 2^31 blocks, or 2 gigablocks. For you, this means a whopping 32T filesystem (since you do use the 16k block size. > > With the standard 8K block size, this means you can have a > > filesystem 16TB big, and a file 8TB big. > > Ah yes, this explains my other message (I'm using 16k block sizes). > > Kris It turns out I read (and responded to) your other message before I read this one, but yes, it does. Mere commoners like me are restricted to 8T files with truncate. -- Andrew Hesford ajh3@usrlib.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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