Path: utzoo!utgpu!attcan!uunet!lll-winken!ncis.tis.llnl.gov!helios.ee.lbl.gov!epb2.lbl.gov!envbvs
From: envbvs@epb2.lbl.gov (Brian V. Smith)
Newsgroups: comp.sys.dec
Subject: Re: Disk Drives for RD controller on UVAX II
Keywords: RD54 equivalent, disk drives, RD controller
Message-ID: <2464@helios.ee.lbl.gov>
Date: 21 Apr 89 20:47:02 GMT
References: <21187625@macs.UUCP> <12158@ut-emx.UUCP>
Sender: usenet@helios.ee.lbl.gov
Lines: 30

In article <21187625@macs.UUCP>, mdg@macs.UUCP (Mark Griffith) writes:
> 
> In article <12158@ut-emx.UUCP>, mike@ut-emx.UUCP (Mike O'Donnell) writes:
> > I would like to find out if anyone manufactures a disk drive
> > that will work with the DEC RQD controller in a uVAX II.  Hopefully
> > I would like to find something around 200 to 300 MB.
> > 
> 
> We have been using 2 MAXTOR XT-4280E drives on our uVAX II for some time
> and have never had any problems.  These drives format to 280 Mbytes and
> are used in conjunction with an SDC-RQD11-EC disk controller from Sigma
> Information Systems (where we got the drives also).  If you need it, we
> also use an SA-H112 drive mounting chassis (with power supply) for these
> two drives....also available from Sigma.
> 

We have the Maxtor XT-8760 which has 620 meg formatted, and the Sigma 
controller, but Mike would like to use his existing RQD controller.  
I don't know of any that works with the RQD.
If you can afford the extra cost of the Sigma controller (~ $1200) the
combination is well worth it.  It is a pretty fast (ESDI) drive, and 
the controller has a 1 Meg cache to help out.  Pretty nice.
And, you basically plug it in and go.  The protocol on the bus side is TMSCP,
so it works fine with either VMS or Ultrix with no special drivers needed.

_____________________________________
Brian V. Smith    (bvsmith@lbl.gov)
Lawrence Berkeley Laboratory

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