The Amazing Dragon (Elliott Mitchell) wrote:
From: Sean Johnson <[EMAIL PROTECTED]>
On Fri, 2004-03-19 at 11:53, Nikita Danilov wrote:
That's common misconception. :)
The goal of compression is to conserve disk bandwidth rather than space.
By compressing it is possible to transfer data (== uncompressed data
user works with), at a rate higher than raw device bandwidth.
I am far from any kind of authority on filesystems, but doesn't compression
make data corruption a significantly nastier bugaboo?
Potentially. Depending upon the encoding losing one block of encoded data
maps to losing many blocks of decoded data. Also losing the first block
of data might make it impossible to recover later blocks.
I think it will just make you lose the compression atom, but Edward can
say more when he gets back from vacation.
But these aren't issues since you do error correction near the physical
layer, and backups just you make sure. You do, don't you?
--
Hans
