Hi, Jon!

Am Fre, 2003-01-24 um 16.27 schrieb Jon LaBadie:
> 
> Maybe you hit what Gene describes in another posting today.
> Once a tape has been written to with HW compression, the drive senses it
> and automatically switches to HW compression regardless of settings.

No, I made a mistake (see my reply to Genes posting).
 
> What capacity were you expecting for "native", uncompressed data?

I expect 100 GB. The drive specifications can be found at:
http://www.storage.ibm.com/hardsoft/tape/3580/prod_data/g225-6854.html
We use the internal version of the drive.

> According to docs/TAPETYPE:
> 
>       The speed is currently unused.
> 
> Is this an HP drive by any chance?  ISTR they have some auto-slowdown
> system to match scsi-bus speed.

# cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 04 Lun: 00
  Vendor: HP       Model: Ultrium 1-SCSI   Rev: N23D
  Type:   Sequential-Access                ANSI SCSI revision: 03

If the measured size and filemark is correct, do you have an idea
how I will be able to use the drive with 15MB/sec?

Regards,
Martin Öhler