[ILUG] Major Boot Disaster FC1... Journalised Filesystems

[P at draigBrady.com]

Farrell, Kevin wrote:
> Hi Kenn,
> 
> Journalised filesystems work by saving filesystem "meta data"
 > at periodic intervals (checkpoints).

Yes this is usually the case. But ext3 can journal the data also.
Danial Robbins can explain it better than I:
http://www-106.ibm.com/developerworks/linux/library/l-fs7/

Of course there is a performance hit for doing this:
http://www.namesys.com/benchmarks/v4marks.html

> In Frank's case, had he used ext2 instead of ext3, he would have
 > had to wait a a lot longer for his filesystem to be rebuilt,
 > and he may not have had a working filesystem at the end of it all!
> 
> If it's your data you want to protect, perform regular backups. ;-)

Agreed :-)

-- 
Pádraig Brady - http://www.pixelbeat.org
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