On Wed, Aug 06, 2003 at 03:50:29PM -0700, S. Keel wrote:
> Hey everyone,
> 
> I've just finished running amtapetype on a couple different kinds of tapes
> that I have here, so here's a couple more tapetype definitions for you
> all.
> 
> HP DDS-4 tapetype (20/40GB capacity).  I couldn't find this when I
> searched the mailing list originally...
> 
> define tapetype dds4 {
>     comment "HP DDS-4 (hardware compression off)"
>     length 19510 mbytes
>     filemark 79 kbytes
>     speed 1763 kps
> }

Was that a DDS4 tape in your new DDS5 drive?

> HP DAT-72 tapetype (36/72GB capacity).  These are the new tapes from HP
> for the DAT-72 drives released by HP a few months ago.
> 
> define tapetype dat72 {
>     comment "HP DAT-72 (hardware compression off)"
>     length 37488 mbytes

Amazing, a capacity larger than advertised spec.

>     filemark 625 kbytes
>     speed 1761 kps
> }

I'm mildly surprised you are getting a significant filemark size.
My recollection is that most DDS3/4 reports showed a 0 filemark.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)