SCSI ULTRA3: need help and advices

Brian A. Berg bberg at bswd.com
Thu Aug 23 09:46:18 PDT 2001


* From the T10 Reflector (t10 at t10.org), posted by:
* bberg at bswd.com (Brian A. Berg)
*
>Umm- try a better initiator?

Yes, this is not a very friendly environment.  Can you supply any
info about what the initiator is, both h/w and s/w?

Brian Berg

> * From the T10 Reflector (t10 at t10.org), posted by:
> * Rasmont Olivier <olivier.rasmont at barco.com>
> *
> Hi,
> 
> I am developing a SCSI ULTRA3 interface for one of our products.
> I try to establish a connection between an initiator an my device (=target)
> in wide fast-80 DT mode. Everything is going correctly until the PPR
> negotiation.
> After that, the initiator requests a WRITE_BUFFER command in ECHO mode. My
> device
> does not support that command for the moment and so I reply with a
> CHECK_CONDITION
> and ILLEGAL_REQUEST sense key. Then the initiator restarts a PPR negotiation
> at lower data rate
> followed by a WRITE_BUFFER again. And so on until ASYN mode.
> What do I have to do to succeed to establish a FAST-80 protocol?
> The WRITE_BUFFER command is not mandatory, is that normal that the initiator
> keeps going
> using it, even after I reply with a CHECK_CONDITION?
> Thanks for your help.
> 
> 
> 
> Olivier  Rasmont
> Design Engineer
> BARCO SILEX
> Rue du Bosquet 7
> 1348 Louvain-la-Neuve
> Phone:	+32 10 45 49 04
> Direct:	+32 10 48 64 71
> Fax:	+32 10 45 46 36
> http://www.barco-silex.com
> 
> *
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