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From: "Andrew V. Stesin" <stesin@elvisti.kiev.ua>
Message-Id: <199511260340.FAA07309@office.elvisti.kiev.ua>
Subject: Re: About Conner and IBM SCSI HDDs (was: Re: your mail
To: dk+@ua.net
Date: Sun, 26 Nov 1995 05:40:50 +0200 (EET)
Cc: hardware@freebsd.org
In-Reply-To: <199511260204.EAA22622@mammoth.cs.kiev.ua> from "Dmitry Kohmanyuk" at Nov 26, 95 04:04:54 am
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# 	hmm. My drive has the following on it:
# 
# top (where the label is):
# 
# BW993FC
# CFP1060S
# SSP-01
# 9WA2.66R1		<- is that firmware version (2.66R1?)

	Gmm. It seems to me that -- no, this means something else,
	like a flash ROM chip own revision or whatever. (?)
	The firmware version your'e looking for is shown at the
	SCSI probe step, like in this line of SCSI probe output
	I'm getting from Conners here:

[...]
(ncr0:0:0): "CONNER CFP1060S 1.05GB 203C" type 0 fixed SCSI 2
				   ^^^^^^
				   here it is. It was something
	like '2031' before the firmware upgrade.

# 
# J35113    503    SG3		<- smaller print - serial numbers??
# 
# 
# on the bottom, it has two chips on sockets (look like flash ROMs),
# with paper stickers on them, which read:

	They _are_ flash ROMs :-)

# 9WS				9WA			<- chip no.?
# 0.24				2.66R1			<- version?
# CD00 b			B3CC c			<- checksum / ??
# 
	Who knows? As for me, I don't care any more :-)

[...]
# 	Btw, they say that problem was manifested itself under Linux ;-)

	... or any other OS which _really_ wants to use advanced SCSI
	hardware features.

# 	(lead to filesystem corruption under heavy disk use)
# 
# Should we add this info to HW compatibility guide?

	Maybe...

# > 	Yes, really. The jumpers on that interface part are for
# > 	SCSI ID and so called "delay start" (who needs this?) _ONLY_.
# > 	Terminator can be disabled only physically ;-) you know this
# > 	already. So sharp your axe!!! :-)
# 
# 	gonna do _real_ hacking w/soldering iron ;-)
# 
	As for me, I'd suggest either send that damn part back to Conner and 
	get a replacement one, or accurately cut the terminator packs away
	with the sharp knife. It seems to me that using iron will be
	A Danger (tm) here without a real need for it.

-- 

	With best regards -- Andrew Stesin.

	+380 (44) 2760188	+380 (44) 2713457	+380 (44) 2713560

	An undocumented feature is a coding error.