Should there be a bit in INQUIRY Data for Fast-20?

Neill Wood wood at hal.com
Thu Aug 25 08:18:58 PDT 1994


Curiously enough, we happen to have tried that this week.
The devices we tested performed as expected, and negotiated
to a higher value.
Neill

| From jlohmeye at ncr-mpd.ftcollinsco.NCR.COM Wed Aug 24 20:14:19 1994
| Subject: Should there be a bit in INQUIRY Data for Fast-20?
| To: SCSI Reflector List <scsi at WichitaKS.NCR.COM>
| Date: Wed, 24 Aug 94 15:58:02 MDT
| From: John Lohmeyer <jlohmeye at ncr-mpd.ftcollinsco.NCR.COM>
| X-Mailer: ELM [version 2.3 PL11]
| Content-Length: 626
| X-Lines: 13
| 
| Does anyone know what will happen to current SCSI devices if one sends them
| an SDTR message with a proposed Transfer Period less than 100 ns?  While
| they _should_ simply negotiate up to a supported value, I wouldn't want
| to bet too much on it.  Should we add a bit to the INQUIRY Data to say
| the target supports Fast-20 to avoid any nasty surprises?
| 
| John
| 
| -- 
| John Lohmeyer                      E-Mail:  John.Lohmeyer at FtCollinsCO.NCR.COM
| NCR Microelectronics                Voice:  719-573-3362
| 1635 Aeroplaza Dr.                    Fax:  719-597-8225
| Colo Spgs, CO 80916              SCSI BBS:  719-574-0424 300--14400 baud
| 




More information about the T10 mailing list