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 �hler
