Stefan,

That did not work.  I did find a way to get the data however.

For some reason, there are two sets of files written to the
same tape, for the same date.  These files are separated
with (I believe) with some sort of eof marker.

The first set are the files listed in the log before the
"INFO driver genetics /home/root 1 [dump to tape failed, will try again]"
message.

The second set (apparently after some kind of eof marker) are the
ones after the "INFO" message.

Amazingly, I was able to get the data by doing this:
1. Rewind the tape
2. Do an "amrestore".  This restore will get the first 36 disks.
3. Do another "amrestore".  This restore can get the 51 disks
which are in the "retry" dump.

I think I have found a bug in amanda.  I hope someone can
look into this problem further.  Is there any other way than
this mailing list to report a bug?

Thanks,

David

From: "Stefan G. Weichinger" <monitor AT oops.co DOT at>
Reply-To: amanda-users AT amanda DOT org
To: amanda-users AT amanda DOT org

Subject: Re: Please help: amrecover says file is there, amidxtaped says its not!

Date: Fri, 29 Oct 2004 01:31:45 +0200

Hi, David,

on Freitag, 29. Oktober 2004 at 01:06 you wrote to amanda-users:

DT> file to recover is "/home/scrozier/rna/Cluster.java" on host "storm"


DT> Extracting files using tape drive /dev/nst0 on host genomics.swmed.edu.
DT> Load tape DailySet3-012 now
DT> Continue [?/Y/n/s/t]? y
DT> EOF, check amidxtaped.<timestamp>.debug file on genomics.swmed.edu.
DT> amrecover: short block 0 bytes
DT> UNKNOWN file
DT> amrecover: Can't read file header
DT> extract_list - child returned non-zero status: 1
DT> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Have you inserted the tape DailySet3-012?

Try to rewind it before running amrecover.

DT> SUCCESS taper storm /home/scrozier 20041012 0 [sec 643.935 kb 3608730 kps

DT> 5604.2 {wr: writers 112774 rdwait 64.916 wrwait 575.833 filemark 1.6
DT> 40}]
DT> INFO taper tape DailySet3-012 kb 46374368 fm 51 [OK]
DT> FINISH driver date 20041012 time 10898.737
DT> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DT> Does the "fm 51" above mean that there are 51 files on the tape?

Yes. fm means filemark.

DT> Could the message above

DT> "INFO driver genetics /home/root 1 [dump to tape failed, will try again]"

DT> have caused the problem?

This does not affect /home/scrozier. /home/root failed.

DT> Most importantly, is the any way to get the data?

Yes.
Rewind the tape, then re-run amrecover. Should help.

--
best regards,
Stefan G. Weichinger.

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