Date: Sat, 9 May 1998 22:06:39 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: tom@sdf.com (Tom) Cc: tlambert@primenet.com, wilko@yedi.iaf.nl, kpielorz@caladan.tdx.co.uk, beng@lcs.mit.edu, dec@phoenix.its.rpi.edu, freebsd-hackers@FreeBSD.ORG Subject: Re: dump/restore problem (was: Network problem with 2.2.6-RELEASE) Message-ID: <199805092206.PAA28038@usr07.primenet.com> In-Reply-To: <Pine.BSF.3.95q.980509100251.9852A-100000@misery.sdf.com> from "Tom" at May 9, 98 10:15:56 am
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> > The real question here is whether or not you can eliminate the IDE > > as a cause of the problem. > > The real question is why have you determined that the cause is IDE and > forced me to disprove it? There is no evidence of file corruption or > other damage that would occur if IDE is broken. Because it works for me, but it doesn't work for you. Because the dump/restore software has not mysteriously mutated. Because IDE vs. SCSI is the most obvious difference in our configurations besides the tape drive, which you have already eliminated by using a disk file. > The next real question, is if your really serious about debugging this > problem, why you don't want to see the first few megs of one of these > damaged dump archives? I'd be happy to look at it if you put it up for FTP some place. My mailbox would not accept something that large, so putting it up for FTP is the only way you are going to be able to communicate it to me > > I *know* that John has done a lot of work on the IDE driver; much > > of this work is in -current, not -stable, and I doubt it has been > > seriously tested with all possible hardware. > > I wish you could develop the ability to read PRs, and look up bin/4683 > Many different versions of FreeBSD are affected. This is irrelevent. The relevent portion is my doubt that dump/restore has been tested with all possible hardware. What other software are you aware of that utilizes the raw disk device, such that you think your data path has been tested? > Also, the IDE drive is very solid. Thousands of FreeBSD users use > IDE. John has been working on new functionality for wdc (UltraDMA > mainly). Let's test this theory. Let's see, what would show a difference between your IDE and my SCSI? I know. Do you have dump/restore handy? 8-). > > Can you copy the disk to a SCSI drive (with TAR, if you insist), > > and try the dump/restore from there? > > I don't have 20 to 30GB of free SCSI disk space. Remember, this is a > 32GB filesystem generally about 70 to 90% full. But you claim that it repeats at a much smaller size. I believe you were claiming 4G. Do you have 4G of SCSI disk available? Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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