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SubjectRe: 1GB Limit on EXT2FS?
25-Mar-98 15:34 you wrote:
> Hi Jacques.
>
> >>>> Is there a way around the 1GB File size limitation on Ext2?
> >>>> I'm pulling a bunch of stuff of a tape from a mainframe, and
> >>>> the files are about 3GB in size.
>
> >>> It's actually 2 GB, but the answer, for now, is unfortunately
> >>> "no". Large file support for ext2 is supposed to go into 2.3.
>
> >> Something's got me puzzled here - I hadn't realised there was a
> >> limit of either 1G or 2G on ext2 partitions - indeed, one of the
> >> systems I use has an ext2 partition that's 3,952,477,184 bytes in
> >> size, which is somewhere around 3.7G according to my calculations.
> >> Perhaps somebody could advise what the actual situation is?
>
> > The size of the partition is not the problem here. This is the
> > size of a file. For sure you can create 9gig partition with
> > ext2 now without problem, but you can't create a 3gig file in
> > it.
>
> Does that mean there will be an ext3 filesystem soon which is
> basically ext2 with those limits expanded?
>
As far as I am know this is NOT ONLY ext2 filesystem problem. Really it's more
deep problem. It's not kernel only problem even. On i386, for example, you
have lseek call with long (31bit on i386!) parameter and bunch of other calls
which will prevent from working with files > 2Gig. You must not only rewrite
part of kernel, but also part of glibc and part of each and every program
with support of large files. Without such revriting this support will be
unusable :-(( On 64bit computers there are no such problems and perhaps support
of > 2Gig files will be in 2.2 for them.




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