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11-14-2011 07:38 AM
11-14-2011 07:38 AM
Cannot read Ignite TAR archive contents
Hello
We are having trouble reading the contents of our make_tape_recovery tapes using
mt -t /dev/rmt/1mn fsf 1
tar tvf /dev/rmt/1m
We are getting
TAR: blocksize = 2
directory checksum errors
Is there any other way to read the contents of the IGNITE tape, as opposed to recovering from it? Could we use CPIO? PAX?
Thanks
Tariq
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11-14-2011 11:11 AM
11-14-2011 11:11 AM
Re: Cannot read Ignite TAR archive contents
What type of server was the tape created on?
For a PA-RISC based system the 'fsf 1' is correct.
However, for an Itanium based system you must do: mt -f /dev/rmt/1mn fsf 22
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11-14-2011 11:19 PM
11-14-2011 11:19 PM
Re: Cannot read Ignite TAR archive contents
Sorry, yes a PA-RISC system
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11-15-2011 06:08 AM
11-15-2011 06:08 AM
Re: Cannot read Ignite TAR archive contents
What was the exact make_tape_recovery command that was used to createthe tape? Are you positive that the tape was created successfully?
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11-15-2011 03:57 PM
11-15-2011 03:57 PM
Re: Cannot read Ignite TAR archive contents
>Could we use cpio? pax?
Yes, you can use pax(1) to read pax, tar or cpio archives.
>yes a PA-RISC system
Then that mt(1) should have worked. Did you rewind the tape before doing the fsf?
>mt -t /dev/rmt/1mn fsf 1
>tar tvf /dev/rmt/1m
Ah, you should use the same device for mt(1) and tar: /dev/rmt/1mn
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11-17-2011 12:30 AM
11-17-2011 12:30 AM
Re: Cannot read Ignite TAR archive contents
The script we are using is:
SYSTEM=`hostname`
TAPEDEVICE=/dev/rmt/1m
# Hashed out while working out how to cope with frecover interactive mode if no header...
# /usr/local/scripts/check_tape.sh $TAPEDEVICE
rm /tmp/recovery_tape.txt
/opt/ignite/bin/make_tape_recovery -I -a ${TAPEDEVICE}n -x inc_entire=vg00 -v | tee /tmp/recovery_tape.txt
# Eject the tape!
/usr/bin/mt -f $TAPEDEVICE offl
/usr/local/scripts/sendunix.sh "$SYSTEM Make Tape Recover `date`" /tmp/recovery_tape.txt
exit
We have had issues whereby the logs say the backup has completed successfully, but when it comes to testing the tape, trying to fsf 1 and tar tvf the archive, we are unable to, also, unable to read the header.
Hope this helps.
Tariq
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11-17-2011 07:12 PM
11-17-2011 07:12 PM
Re: Cannot read Ignite TAR archive contents
>when it comes to testing the tape, trying to fsf 1 and tar tvf the archive, we are unable to
As I mentioned, have you used a no rewind device for both steps?
TAPEDEVICE=/dev/rmt/1mn
mt -f $TAPEDEVICE fsf 1
tar tvf $TAPEDEVICE