SCSI and 386/ix

[John L. Grzesiak]

In article <25c77e8b:490.5comp.unix.i386;1 at nstar.UUCP>, larry at nstar.UUCP (Larry Snyder) writes:
> >The real win is with *two* SCSI drives; while an RLL controller
> >usually is WD1003 compatible, and thus cannot possibly support
> >overlapped seeks or transfers, the ACB 1542 will support these,
> 
> How about getting 2 2372B RLL controllers each controlling 1 drive?
> Wouldn't this have the same effect as two SCSI drives on the 1542?

In a word : no... While it would seem that this would allow a greater bandwidth
 thru  the AT bus , they 1542A as a bus master is actually faster than
 two good ESDI controllers (Never mind RLL-st506).
 We won't go into how DMA controllers work , since there are several
  good books on the subject available.

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	* John Grzesiak @ Omega Dynamics :  Specializing in UNIX/XENIX    *
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