Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!njin!spcvxb.spc.edu!terry
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: comp.sys.dec
Subject: Re: RD54 Woes, yet again
Message-ID: <1991Jan2.203558.934@spcvxb.spc.edu>
Date: 2 Jan 91 20:35:58 GMT
References: <1990Dec19.234817.14316@csn.org> <2190@shodha.enet.dec.com> <1991Jan2.223448.25943@csus.edu>
Distribution: usa
Organization: St. Peter's College, US
Lines: 27

In article <1991Jan2.223448.25943@csus.edu>, cooling@cssmtf.ccs.csus.edu (Mike Cooling) writes:
> This topic reminds me of problems we have had in trying to add an RD52, or
> any RDxx drive to a uVAX II when the BA23 already had a pair of floppies and
> an RD53. There is no "protect buttons" available and the drive seems to come
> up as unready to the system, but VMS does see it. It was our opinion that
> there are jumpers on the disk drive to change the default so that it comes 
> up ready.   We could never get any DEC CE or anyone else to give us a clue
> as to whether this assumption is correct let alone how the jumpers should
> be set, because such a configuration is "unsupported".  This may be related
> to the other described problem.   

  You should look at article <1990Dec30.091947.928@spcvxb.spc.edu>, where I
said:

> This is available from DECdirect +1-800-DIGITAL as part number BA23-UC.

  in reference to the 6-button front panel upgrade. That article contains
other important information on this subject, and I suggest you read it.

  As fat as "jumpers on the disk drive" go, the RD5x are (at least as far
as this subject is concerned) industry-standard 5.25" drives. There are no
jumpers for ready/write protect on the drive itself. The front panel gener-
ates those signals and passes them on to the RQDXn controller.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, US
	terry@spcvxa.spc.edu	(201) 915-9381