=G=

Gene Heskett wrote:

On Monday 26 August 2002 15:47, Galen Johnson wrote:

Hi folks,

I realize that amanda may be overkill for what I want but...has
anyone setup amanda to use a Sony DDS2 tape device?  I'm
currently running the 'tapetype -f /dev/nst0 -e 8g' command to
verify the tape itself.  Of course, the 8g is compressed instead
of normal.  Has anyone already configured a tapetype in the
config file to address the DDS2 tapes?  I'm in the initial stages

of setting this up so any advice would be greatly appreciated. (After I play around with my system I get to try it with a

production system that uses an Exabyte EZ17 Mammoth autoloader in
place of a veritas system that wouldn't handle the changer).

=G=

First, you may as well ctl-c the tapetype run as the info you get when the drives compression is on is pretty bogus. The tapetype program uses /dev/urandom as the data source, and as its random, its not normally compressable, and may in fact expand some.

Second, heres mine.
--------------------------
define tapetype DDS2 {
   comment "just produced by tapetype program"
   length 3780 mbytes
#   lbl-templ "/usr/local/etc/amanda/DailySet1/DDS2.ps"
   filemark 0 kbytes
   speed 380 kps
}
----------------------------

Note that by using one of amanda's dumptypes that uses compression, the compression ratio can be quite a bit higher than the drive can do. I have half a dozen directories that regularly exceed 100% in < 20% out.