DDS Tape problems

Jerry McAllister jerrymc at
Tue Jun 21 14:09:51 GMT 2005

> Pavel Duda wrote:
> > I've just switched tape drive for a DDS-4 and this one works fine. 
> > Funny is that DDS3 drive works wo problems on my workstation with 
> > Windows and same (well same type not exactly same) SCSI adapter. I 
> > have also found some information that there could be problem with SCSI 
> > commands queueing, but no solution for that or what it causes. Anyway 
> > now I'm happy that DDS-4 in server works fine so I probably wont dig 
> > deeper to find out where is the problem....
> Don't blame you :-)  I guess I'll just count myself lucky that my DDS-2 
> works fine (modulo heads wearing out).
> Windows drivers could easily be doing something clever to compensate for 
> some known (to Microsoft at least) problem with the specific tape 
> drive.  Being Windows it wouldn't bother to tell you.

That is probably true.   I just wish someone could find out what that[those]
trick[s] is[are] and apply them in FreeBSD - someone who knows more about
SCSI tape drivers than I.


> Glad you got something working in the end.
> --Alex

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