🚀 go-pugleaf

Archive-name: sys/dec/triadd/1991-06-21
Archive-directory: gatekeeper.dec.com:/pub/TriAdd/ [16.1.0.2]
Original-posting-by: ajc@thendara.pa.dec.com (AJ Casamento)
Original-subject: Re: Which MO disk for VMS or Ultrix?
Reposted-by: emv@msen.com (Edward Vielmetti, MSEN)




In article <1991Jun21.050702.18342@newshost.anu.edu.au> david@phys.anu.edu.au (David Baldwin) writes:


>> I want to run a magneto-optical (or all-optical) read-writeable removable disk
>> on VAXStation 3100s running VMS or DECStation 3100/5000-200s running Ultrix.
>> I would like to hear from anyone who has connected such a device directly to
>> the SCSI bus, and what drivers or hardware adapters are required. I know that
>> solutions exist for UniBus or Q-bus machines that do their own emulation, or
>> for SUN workstations directly to SCSI, but I need information about direct 
>> SCSI connections to DEC workstations. 

>> Thanks in advance,
>>	   David.

  

	David,

	  A couple of recommendations that I can make to you for the DS5000/xxx
	series machines:


	Ten X Technology, Inc.
	4807 Spicewood Springs Rd.	512.346.8360	Margaret Williams
	Building 3, Suite 3200		512.346.9580 	FAX
	Austin, TX 78759

			OptiXchange	(WORM & Magneto Optical)

		This device is a multifunction optical disk subsystem
		capable of reading and writing both WORM and Erasable
		(M-O) media from the same drive. It is compatible with
		the VMS, ULTRIX, and other computer operating systems.
		Features include automatic detection of media type and
		access to historical data through "timestamping".



	MAXOPTIX Corporation
	2520 Junction Avenue		408.954.9700
	San Jose, CA 95134		408.954.9711 	FAX

			TAHITI

		Highest cpacity MO-erasable drive on the market.
		Accepts ANSI standard 650 Mbytes or 1 Gbyte of media.
		Embedded SCSI-2 controller. Highest sustained data
		transfer rate: 600 Kbytes/second READ; 300 Kbytes/second
		WRITE. Fastest seek time 35msec average for 650 Mbyte
		media; 25msec for 1 Gbyte data. Standard 5.25 FH 
		footprint. Supports 512- or 1024-byte sectors. Media
		removability can be software controlled.


	Both of these companies are TRI/ADD Program members and I have seen
	their products run on DS5000/200 series machines (I have even seen
	the TAHITI used as a system disk...but it's pretty slow). I have not
	seen them used on VMS machines so I can't vouch for that. All of the
	information here is presented by the respective companies and I make
	NO warranty for performance (but tell them I said hello).

	If you are interested in some additional documentation on DEC's SCSI
	implementations (particularly the port class driver for VMS) you can
	find postscript files on (available for anonymous ftp):

		gatekeeper	16.1.0.2

			pub/TriAdd

	There is both a SCSI Overview and a Developer's Guide available
	there. I hope that this information helps.

				Thanx,
				  AJ


      **********************************************************************
      * AJ Casamento			"The question is not whether or    *
      * Digital's TRI/ADD Program	 not the opinions are mine; but    *
      * 100 Hamilton Ave. UCO1-B	 rather, which of my personalities *
      * Palo Alto, CA 94301-1616	 do they belong to?"		   *
      * 415.853.6744							   *
      * ajc@decwrl.dec.com						   *
      **********************************************************************

-- MSEN Archive Service file verification
gatekeeper.dec.com
total 2538
-r--r--r--  1 root        95889 May  1 14:55 turbo_hw_spec.ps.Z
-r--r--r--  1 root        91113 May  1 14:55 turbo_fw_spec.ps.Z
-r--r--r--  1 root       269262 May  1 14:54 turbo_hw_spec.ps
-r--r--r--  1 root       266529 May  1 14:54 turbo_fw_spec.ps
-r--r--r--  1 root       127742 Jan 17 16:27 optimizingX.ps
-r--r--r--  1 root        84819 Oct  1  1990 scsi-overview.ps.Z
-r--r--r--  1 root       330061 Oct  1  1990 scsi-developer-guide.ps.Z
-r--r--r--  1 root       238424 Oct  1  1990 scsi-overview.ps
-r--r--r--  1 root      1019607 Oct  1  1990 scsi-developer-guide.ps
found triadd ok
gatekeeper.dec.com:/pub/TriAdd/