General SCSI+DLT speed questions

Jim Attfield james at attfield.co.uk
Tue May 15 02:44:06 CDT 2007


> From: Jim Leonard <trixter at oldskool.org>
>
> > Don't confuse interface speed vs. actual media speed.
>
> True, but I didn't have a basis for comparison.  I'm hearing that 4MB/s
> is indeed slightly above par, so I guess I should be happy .

I have several 35/70GB DLT drives on various systems and they all do between
240MB/minute to 400MB/minute depending on the speed of the disk systems (and
to some extent CPU's) they are backing up so yours certainly seems in the
ball park. You can't go by interface (10MB/s) or bus (132MB/S) speed, it's
purely down to the highest rate the drive can stream at and making sure you
can feed it data fast enough to keep it in 'streaming' mode.

Jim




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