Re: Store FS related questions

[Diego Roversi]

On Wed, Jan 16, 2002 at 04:15:22PM +0100, Marcus Brinkmann wrote:

> If you use gunzip:STORE where store is any store, it will create an
> uncompressed copy in memory.  STORE can also be the concat store, or ileave
> store or whatever.  But note that this is probably not what you want (writes
> gets lost, the whole store will be kept uncompressed in memory) if you want
> transparent disk compression.  For this, a new store class has to be written
> (and probably some other algorithm than gzip has to be used).

Compressed store make sense only if the are readonly or used with a
"substore" that can shrink or grow at will. That happens because you can't
know how well data can be compressed. The only way to handle correctly is to
compress the data at fs layer (see e2compress: a modified ext2).


-- 
Saluti / Regards

Diego Roversi | diegor at maganet.net
              | diegor at tiscalinet.it