On Wednesday, October 22, 2003, at 08:35  AM, Greywolf wrote:

> Hm.  Judging by that, perhaps PBL is NOT the wisest move (for the
> uninitiated:  jfs and xfs are more stable than either of ext3 or
> reiserfs).

Physical block logging vs. logical operation logging don't really have 
much to do with the stability of the file system.  That is, unless you 
count code complexity; physical block logging is much less complex when 
it comes time to replay the journal (i.e. you don't have to reconstruct 
what the actual physical block operations were).  In any case, there 
are plenty of other reasons why a particular file system implementation 
could suck, none of which really have anything to do with the 
journaling strategy chosen.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>