Compressed partition or block device?

[William Park]

On Mon, Jul 09, 2012 at 03:00:04PM -0400, Lennart Sorensen wrote:
> On Mon, Jul 09, 2012 at 06:26:55AM -0700, William Park wrote:
> > I want to try "compressed partition or block device" (just
> > like RAID or encryption layer) on top of which would go your
> > regular filesystem.  Is there such thing?  Any keywords
> > to get me started?
> 
> That probably exists but could be rather tricky.
> 
> After all you don't want to just compress the disk from one end to the
> other, since then any change in the middle would require recompressing
> everything after it.  So that means it needs more of a per block level
> of compression, but now the question is how to place compressed blocks
> on the disk in an efficient manner given they will vary in size.
>
> ...

Hmm, good point.

-- 
William
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