ITEM: DA3462L

media surface error reading cpio archive using pax.

Question:

4.1.4

Model C20

Trying to restore or do list on tape

Response:

Customer Contact

Response:

 ENV:
AIX 4.1.4

*CUSTOMER REP:
Gayle Magel

 PROBLEM:
Customer is trying to restore from a tape,  she gets the same message
at 1024 and 0 block size.

Can't read input /dev/rmt0
out of phase, cpio attempting to continue.
One or more files list
Previous file possibly corrupt.

*ACTION TAKEN:
I did a couple of searches on this and I see a wide range of 
things that could cause this, so I thought it would be best to
pass it on.


*ACTION PLAN:
Requeue to BACKUP for callback before 7pm central or tomorrow,
thanks. jar
 TEST CASE:


Response:

Customer Contact

Response:

 CUSTOMER REP:    4.1.4, model c20

 PROBLEM:    Trying to restore some files from a cpio archive on a 4mm
tape.

 ACTION TAKEN:    I had her put the tape in the machine.
 The block size is already set to 0.
 \# tctl rewind
 \# dd if=/dev/rmt0 of=/tmp/block bs=128k count=1
 "0+1 records in, 0+1 records out"
 \# file /tmp/block
 "ASCII cpio archive"
 \# wc -c /tmp/block
 "1024"
 \# chdev -l rmt0 -a block_size=1024
 "rmt0 changed"
 \# pax -vf /dev/rmt0
 This began to list files, but stopped after displaying:
 "036==pro/bin/aix/taintprel"
 However, the tape activity light is still flashing, so I advised her
to let it run.
 "pax offset 5M+60K media serface error.  file is corrupt."
 Lots of errors like this, with the offset changing.

 Put in another tape and then tried to write a simple archive:
 \# pax -x cpio -wvf /dev/rmt0 /tmp
 \# pax -vf /dev/rmt0
 This displayed the entire listing with no errors.

 I told her that it looks like her tape is damaged.  She agreed.  She
will try to get another copy of that tape.

 ACTION PLAN:    CWCA.

Response:

Closing with Customer Approval



Support Line: media surface error reading cpio archive using pax. ITEM: DA3462L

Dated: May 1997 Category: N/A

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