[Coco] DW3 descriptor info question

George Ramsower georgeramsower at gmail.com
Thu Mar 26 23:51:09 EDT 2009


----- Original Message ----- 
From: "Tim Fadden"
> Hi,
>
> I was wondering about  the device descriptor for the /x# devices under 
> Nitros9.
> I am thinking that the only time the device information is used, as 
> reguards to the geometry is when the disk is formatted. And I do know that 
> backup wants the two disks to be the same before it will work. And as to 
> imbedded scsi drives, it is ignored all together except to calculate the 
> total number of sectors, and cluster size, as the numbers are not the 
> actual geometry of the disk any way, and the disk formats itself.
>
> Sample:
>
>        dmode /h0
>
>         nam=h0 mgr=RBF ddr=SCSISYS
>         hpn=07 hpa=FF5B drv=00 stp=00 typ=80 dns=90 cyl=040C sid=0C
>         vfy=01 sct=0021 t0s=0021 ilv=01 sas=10 wpc= ofs= rwc=
>
> When using os9.exe from the toolshed, only the total number of sectors is 
> provided, so geometry is not used there.
>
> Now to the question!  When using format with the /X# disks, just which 
> values does it look at?
> I would think only cyl, sid, sct, and t0s, in order to calculate the 
> number of sectors.
>
> Any questions, or input is welcome.
>
> Tim
>
> P.S. How long must a person be on the list before they are not considered 
> fly-by-night, and are eligible to answer posts in an attempt to help 
> otheres?  ;-)

 About as long as it takes someone to check their email.
 That's the only question in your post that I can answer.... sorry.

 Never worry. Sometimes, when the list gets busy, a post will get lost in 
the shuffle.
 Wait about a day and ask again. I "Garontee" you will find out something.

George 




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