On Wed, 2007-08-29 at 21:34 +0100, Peter Grandi wrote:
> >>> On Wed, 29 Aug 2007 14:39:31 -0400, "Justin Bronder"
> >>> <[EMAIL PROTECTED]> said:
> 
> [ ... using 'nointegrity' to disable journaling ... ]
> 
> jsbronder> a.) Mount the filesystem with nointegrity and leave
> jsbronder> it like that. If the file has been opened, written
> jsbronder> to, and closed, do we stand to lose anything should a
> jsbronder> power loss happen later?
> 
> I have seen the reply by DavidK, and let me add that this
> question is a bit fuzzy as for example in "lose anything".

I agree with everything you said here.  Let me summarize the difference
between "integrity" (default behavior), and "nointegrity".  With
"integrity", you may lose recent un-committed changes to files,
including unsync'ed file data, but everything previously sync'ed to disk
should be okay, and the file system metadata will be in a consistent
state.  With "nointegrity", you could lose anything, including
previously sync'ed data.  It will be necessary for fsck to do a full
recovery, which won't necessarily recover damaged files and directories.


-- 
David Kleikamp
IBM Linux Technology Center


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