10 Mar
2011
10 Mar
'11
4:16 a.m.
On Wed, 9 Mar 2011, Al Kossow wrote:
On 3/9/11 1:32 PM, Shoppa, Tim wrote:
You can get the best of both worlds by using a tape storage system with
hardware level compression. My LTO-2 drive squeezes the bits at the low
level, yet I still have logical direct access to all files.
--
OTOH I keep all of my images compressed,
precisely because I want to know
if any copy has been corrupted.
Another use for uncompressed archives (mainly tape backup images) is you can
create a file that contains
a directory of the contents and a offset to the file header, and have very
fast access within the tape image.
You can't do that if the image has been compressed.