DEC SCSI HD; optional features ?

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2 total messages Started by Niels Kraaijeveld Sun, 28 Jan 1996 13:03

#4523

Author: Niels Kraaijeveld
Date: Sun, 28 Jan 1996 13:03

32 lines
1119 bytes

Hi SCSI expert,

I have documentation about my SCSI HD (Digital DSP3000L Series), but
for a non-SCSI expert it is very brief. So can anyone tell my anything
about (or where can I find good detailled documentation):

- notification of AC power failure
- spindle synchronization
- write protection
- spin delay

And what is the best  configuration for the HD.

My system SCSI-configuration:
Mainboard:
  PCI/I-P5MP3  Rev. 2.3

  NCR SDMS(TM) V3.0 53C810 SCSI BIOS, PCI REV. 2.0
  Copyright 1993 NCR Corporation
  PCI20-3.01.04

SCSI Adapter:
  PCI-SC200  Rev. 1.1
  (chip: NCR 53C810 PT)

SCSI HD:
  DEC DSP3053LS
  (Interface chip: NCR 53CF96-1 (1992))

Thanx !
Niels Kraaijeveld
email: n.kraaijeveld@sepa.tudelft.nl

Re: DEC SCSI HD; optional features ?

#4524

Author: Ralf-Peter Rohbeck
Date: Tue, 30 Jan 1996 16:23

37 lines
2054 bytes

n.kraaijeveld@sepa.tudelft.nl (Niels Kraaijeveld) wrote:
>Hi SCSI expert,
>
>I have documentation about my SCSI HD (Digital DSP3000L Series), but
>for a non-SCSI expert it is very brief. So can anyone tell my anything
>about (or where can I find good detailled documentation):
>
>- notification of AC power failure
Spits out any cached write data and retracts the actuator. Stops responding
to commands. Active low input.

>- spindle synchronization
Synchronize multiple spindles in a system by connecting this pin across all
of them. Bidirectional TTL open collector.

>- write protection
Now that's easy isn't it? Active low input.

>- spin delay
Do not spin up at power up (wait for a START UNIT or wait a certain time defined
in the mode pages.) Active low input.

It's all in the manual or installation guide.

>
>And what is the best  configuration for the HD.
Just make sure write caching is on. Set the WCE bit in the caching mode page.
Get yourself DSP tools to do that. E.g. at 
http://www.vobis.de/bbs/firmen/quantum/tools/index.html

Hope this helps,
Ralf-Peter
========================================================================
Ralf-Peter Rohbeck                                     rrohbeck@qntm.com
Quantum GmbH-Application Engineering-Central Europe   (+49) 69-950767-18
Berner Str. 28, 60437 Frankfurt, Germany          fax (+49) 69-950767-91
#include "disclaimer.h"          tech support hotline (+49) 69-950767-26

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