[ubuntu-uk] EXT3 or EXT4

[Tony Travis]

On 16/07/10 20:53, Rob Beard wrote:
> [...]
> Now at the moment I've got my drive formatted to EXT3, I gather I can
> convert from EXT3 to EXT4 (but I'm going to reformat the drive anyway)
> but I wondered basically if I might be better going for EXT4 this time?

Hello, Rob.

Yes, you can convert from ext3 to ext4, but you do not get 'extents' for 
the existing files. Extents are one of the major advantages of ext4, so 
I would definitely reformat your drive instead of converting.

Another advantage of ext4 is it's a lot quicker to fsck filesystems.

Bye,

   Tony.
-- 
Dr. A.J.Travis, University of Aberdeen, Rowett Institute of Nutrition
and Health, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, Scotland, UK
tel +44(0)1224 712751, fax +44(0)1224 716687, http://www.rowett.ac.uk
mailto:a.travis at abdn.ac.uk, http://bioinformatics.rri.sari.ac.uk/~ajt