Subject: Re: FFS journal
To: Manuel Bouyer <>
From: Jason Thorpe <>
List: tech-kern
Date: 07/05/2006 16:43:08
On Jul 5, 2006, at 3:26 PM, Manuel Bouyer wrote:

> Sure. My concerns are if we loose the journal. fsck on a multi- 
> terabytes
> volume is not fun, but restoring a multi-terabytes volume from tapes
> is not either, and I'm sure fsck would still be faster.

and if you lose your journal, how confident are you that the rest of  
the file system is not also curdled?  You either trust the journal or  
you don't....

>> 2) Since we are caring
>> about on-disk state, we may need to build part of softdeps into  
>> this. If
> My idea was to add journaling to softdep.

Journaling and softdep are kind of on opposite ends of the spectrum  
in terms of FS crash recovery...  Besides, softdep isn't something  
that would like to see become MORE complicated... I'd rather just get  
rid of it entirely by having a modernized file system.

-- thorpej