[Python-Dev] Ext4 data loss

[Oleg Broytmann]

On Fri, Mar 13, 2009 at 12:28:07PM +0300, Oleg Broytmann wrote:
> On Thu, Mar 12, 2009 at 10:14:41PM -0600, Adam Olsen wrote:
> > Yet the ext4
> > developers didn't see it that way, so it was sacrificed to new
> > performance improvements (delayed allocation).
> 
>    Ext4 is not the only FS with delayed allocation. New XFS has it, btrfs
> will have it. Don't know about other OS/FS (ZFS? NTFS?)

http://thunk.org/tytso/blog/2009/03/12/delayed-allocation-and-the-zero-length-file-problem/

   Ted Tso said HFS+ and ZFS have the property as well. So no, it is not
a deficiency in the Linux kernel or in Ext4 FS - it is a mainstream path in
modern filesystem design.

Oleg.
-- 
     Oleg Broytmann            http://phd.pp.ru/            phd at phd.pp.ru
           Programmers don't die, they just GOSUB without RETURN.