Re: LTO Ultrium
2003-01-24 12:26:49
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
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