Re: [HACKERS] Linux Largefile Support In Postgresql RPMS

On Mon, 2002-08-12 at 18:41, Martijn van Oosterhout wrote:
> On Mon, Aug 12, 2002 at 11:30:36AM -0400, Andrew Sullivan wrote:
> > The problem is not just a system-level one, but a filesystem-level
> > one. Enabling 64 bits by default might be dangerous, because a DBA
> > might think "oh, it supports largefiles by default" and therefore not
> > notice that the filesystem itself is not mounted with largefile
> > support. But I suspect that the developers would welcome autoconfig
> > patches if someone offered them.
>
> Are there any filesystems in common use (not including windows ones) that
> don't support >32-bit filesizes?
>
> Linux (ext2) I know supports by default at least to 2TB (2^32 x 512bytes),
> probably much more. What about the BSDs? XFS? etc
>

Ext2 & 3 should be okay. XFS (very sure) and JFS (reasonably sure)
should also be okay...IIRC. NFS and SMB are probably problematic, but I
can't see anyone really wanting to do this. Maybe some of the
clustering file systems (GFS, etc) might have problems??? I'm not sure
where reiserfs falls. I *think* it's not a problem but something
tingles in the back of my brain that there may be problems lurking...

Just for the heck of it, I did some searching. Found these for
starters:
http://www.suse.de/~aj/linux_lfs.html.
http://www.gelato.unsw.edu.au/~peterc/lfs.html

http://ftp.sas.com/standards/large.file/

So, in a nut shell, most modern (2.4.x+) x86 Linux systems should be
able to handle large files.

Enjoy,
Greg