ESDI disks/controllers and SCO UNIX

[Stuart Lynne]

In article <23260 at adm.BRL.MIL> DBarker at system-m.phx.bull.com ( Deryk Barker) writes:
>          Western Digital WD1007A-WA2 ESDI controller

}My SCO UNIX release notes say that it will work OK with the WD1007 (ST506) and
}WD1006 (ESDI) controllers - so I am a bit puzzled as to why the WD1007A should
}be  ESDI  rather  than  ST506 - oh well...  I am VERY reluctant to spend large

}I  have been informed that the WD1007 is definitely ESDI, so presumably it's a
}typo.   Can  anyone  confirm  that the WD1007A -WA2 is bus-compatible with the
}vanilla  WD1007  -  although  I  can't imagine why it wouldn't be.  Also, does

Yes.

}anyone  know  how  many cylinders/heads the NEC disk has?  I gather UNIX won't
}access past 1024 cylinders or 16 heads.

You don't need to know, the WD1007 will read it off of the disk for you when
you format it.

There is no problem with SCO Xenix accessing cylinders past 1024, I can't
imagine SCO Unix will have a problem. This is a very common configuration
these days.



-- 
Stuart.Lynne at wimsey.bc.ca ubc-cs!van-bc!sl 604-937-7532(voice) 604-939-4768(fax)