Date: Thu, 16 Jan 1997 19:14:39 +0100 From: "Frank ten Wolde" <franky@pinewood.nl> To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) Cc: freebsd-hackers@freebsd.org Subject: Re: HP4020 Writable CD-ROM failures - help requested Message-ID: <9701161914.ZM29378@pwood1.pinewood.nl> In-Reply-To: j@uriah.heep.sax.de (J Wunsch) "Re: HP4020 Writable CD-ROM failures - help requested" (Jan 15, 0:46) References: <9701142229.ZM22710@pwood1.pinewood.nl> <Mutt.19970115004611.j@uriah.heep.sax.de>
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Hello J"org, On Jan 15, 0:46, J Wunsch wrote: > Subject: Re: HP4020 Writable CD-ROM failures - help requested > > As Frank ten Wolde wrote: > >> # rtprio 5 team -v 1m 5 < cdrom.image | dd of=/dev/rworm0 obs=20k >> ...kb read/...kb written >> Error code is "current errors" >> Segment number is 00 >> Sense key is "Unit attention" >> The Information field is 80000000 (-2147483648). >> The Command Specific Information field is 00000000 (0). >> Additional sense code: 28 >> Additional sense code qualifier: 00 >> sense (32 of 48): >> f0 00 06 80 00 00 00 0a 00 00 00 00 28 00 00 00 >> 00 00 11 89 95 38 fe ff 00 00 00 00 80 1c 06 f1 >> > That must be either one of the recent ahc driver problems (Justin is > aware of it, and we're waiting for his final actions -- that's the > main reason 2.2 didn't go out yet). Or, are you pretty sure that your > I'm using the 2.2-960612-SNAPSHOT release of FreeBSD. Is this considered 'recent'? > drive isn't overheating? I've got a few reports by now that indicate > that the HP parts are fairly sensitive against this. (The usual PC > power-supply fan is certainly insufficient.) > Maybe, but it happens every time again (I tried twice :-) and each time just before the end of data, possibly just before the 'fixate' command. (First time I wrote appr 300 MB, second time appr 610 MB. Both times dd reported that *all* bytes had been transferred to the CDR.) Could it be that you have to pause for a few seconds and let the CDR flush its buffers before issuing the 'fixate' command? Regards, -Frank -- ---------------------------------------------------------------------- F.W. ten Wolde (PA3FMT) Pinewood Automation B.V. E-mail: franky@pinewood.nl Kluyverweg 2a Phone: +31-15 2682543 2629 HT Delft
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