[PLUG] DDS3 capacity??

[Galen Seitz]

seniorr at aracnet.com said:
> Odd thing is that despite an advertised 12 gig native capacity, I hit
> End-Of-Media at 10,127,835,136 bytes.  How come so little?  One of the
> pissers about these tape drives with hardware compression is that you
> never _really_ know where you are on the tape. Can't eject them
> without a rewind, so even just visual inspection is out.  I am
> *guessing* that the hardware compression on the "random" data from /
> dev/urandom actually resulted in the recorded information being larger
> rather than smaller.  I suppose I could turn off the hardware
> compression and try again to test that theory.  Besides that, I don't
> have any theories at the moment.  Anyone else?

I suspect your guess is correct.  Running the test again with compression
turned off is probably the only way to know for certain.  BTW, the
seagate manual has much detail about the operation of the drive.
I don't know if this is the model you have, but I'm sure a lot of it
would apply.

http://rss.seagate.com/products/srssDrives/pdf/dds3pmb.pdf

galen