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: <1990Dec29.074441.926@spcvxb.spc.edu>
Date: 29 Dec 90 07:44:41 GMT
References: <1990Dec19.234817.14316@csn.org> <2190@shodha.enet.dec.com>
Distribution: usa
Organization: St. Peter's College, US
Lines: 25

In article <2190@shodha.enet.dec.com>, alan@shodha.enet.dec.com ( Alan's Home for Wayward Notes File.) writes:
> 	Now, the symtom of a disk "unformatting" itself is something
> 	I have seen, when the disk is the "Lepracaun" box.  Generally
> 	this was used in configurations with one disk inside a BA23
> 	and the other outside connected via an RQDXE.  If, for example
> 	you turn off the system, but leave the disk turned on, it will
> 	appear to unformat itself.  If you turn off the system then turn
> 	off the disk, you'll get a bad block or two.  When turning on
> 	or off this setup you HAVE (HAVE!!!) to do things in the right
> 	order.  The rule is simple.
> 
> 		NEVER have the disk turned on by itself.

  I remember this. The solution involved some changes to the RQDXE extender
module. The FCO is RQDXE-I001, Feb '87, which raises the M7513 module from
CS A1 to CS B1. The kit part number is EQ-01456-01.

  With this installed, I haven't had any problems (I have an RD54 in my
11/83 and another one in a RD54-DA lep box). I also have the BA23-UC "Six
button front panel upgrade" kit, which duplicates the lep box's ready and
write protect buttons on the BA23.

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