Re: Cannot write file larger than 2TB on x86_64?

[Justin Piszcz <jpiszcz@lucidpixels.com>]

Filesystem File Size Limit Filesystem Size Limit ext2/ext3 with 1 KiB 
blocksize 16448 MiB (~ 16 GiB) 2048 GiB (= 2 TiB) ext2/3 with 2 KiB 
blocksize 256 GiB 8192 GiB (= 8 TiB) ext2/3 with 4 KiB blocksize 2048 GiB 
(= 2 TiB) 8192 GiB (= 8 TiB)

http://www.suse.de/~aj/linux_lfs.html

That's the problem, nevermind!


On Wed, 25 Jul 2007, Justin Piszcz wrote:

> Erm, unless this is an EXT3 limitation--oops..
>
> On Wed, 25 Jul 2007, Justin Piszcz wrote:
>
> > The kernel is 2.6.9-42.ELsmp on RHEL4 x86_64.
> >
> > servername$ dd if=/dev/zero of=4.8tb_file bs=1M count=4800000
> > File size limit exceeded
> > servername$ (stopped at 2TB)
> >
> > The 64bit should not need the option obviously, because it is 64bit, is 
> > this a b
> > ug in the kernel?
> >
> > For 32bit:
> > .config - Linux Kernel v2.6.22 Configuration
> > ..............................................................................
> >  ..................... Support for Large Single Files 
> > ......................
> >  . CONFIG_LSF: 
> > .
> >  . 
> > .
> >  . Say Y here if you want to be able to handle very large files (bigger 
> > .
> >  . than 2TB), otherwise say N. 
> > .
> >  . 
> > .
> >  . If unsure, say Y. 
> > .
> >  .
> >
> > For 64bit:
> > .config - Linux Kernel v2.6.22 Configuration
> > ..............................................................................
> >  ............................... Block layer 
> > ...............................
> >  .  Arrow keys navigate the menu.  <Enter> selects submenus --->. 
> > .
> >  .  Highlighted letters are hotkeys.  Pressing <Y> includes, <N> excludes, 
> > .
> >  .  <M> modularizes features.  Press <Esc><Esc> to exit, <?> for Help, </> 
> > .
> >  .  for Search.  Legend: [*] built-in  [ ] excluded  <M> module  < > 
> > .
> >  . ....................................................................... 
> > .
> >  . .    --- Enable the block layer                                       . 
> > .
> >  . .    [ ]   Support for tracing block io actions                       . 
> > .
> >  . .          IO Schedulers  --->                                        . 
> > .
> >  . .
> >                                .
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