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CPIO restoration from LTO2 tape media on AIX 4.3.3

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Operating Systems AIX CPIO restoration from LTO2 tape media on AIX 4.3.3
# 1  
Old 07-12-2012
CPIO restoration from LTO2 tape media on AIX 4.3.3
Hi, AIXers Smilie

Recently i'm playing around with cpio command, when i try to list out content from LTO2 Tape media using

command:
Code:
#cpio -itvc < /dev/rmt1

it's stopped at particular path
Code:
100777 root     1042591 Mar 24 10:09:05 2012 /home/uv/bin/usd

and there was an error thrown out:

Code:
cpio: 0511-037 Cannot read from the specified input.
Enter the device or file name when ready to continue.

At the same time the Tape ejected automatically and show Tape Drive / Media Error on the LTO2 tape drive.


There is no problem with LTO2 Tape drive as i tried on another Tape Media, it's work.

Anyone here faced this problem before?

Thanks for replying. Appreciate. Smilie

Moderator's Comments:
Mod Comment edit by bakunin: Please use code tags next time for your code and data.
Last edited by bakunin; 07-14-2012 at 11:24 PM..
# 2  
Old 07-13-2012
Hi Polar,

Try to use the B option.
Code:
# cpio -itvcB </dev/rmt1

By the way...
If there are more tape markers on this tape:
Code:
# mt -f /dev/rmt1.1 fsf 1 ; cpio -itvcB -I /dev/rmt1.1

(.1 is the no-rewind device)
Skips one block, if there are any markers.

Another way to test the tape
Code:
dd if=/dev/rmt1 of=/dir-with-enough-space/1.dd  -noerror
cpio -itv -I /dir-with-enough-space/1.dd

Good luck,
René

Moderator's Comments:
Mod Comment edit by bakunin: Very good advice, but please use code tags next time for your code and data.
Last edited by bakunin; 07-14-2012 at 11:25 PM..
# 3  
Old 07-17-2012
Hi rene, i have tried
Code:
 # cpio -itvcB </dev/rmt1

The output able t0 list more directories, but result is still the same. It's thrown out

Code:
 
cpio: 0511-037 Cannot read from the specified input.
Enter the device or file name when ready to continue.

For
Code:
# mt -f /dev/rmt1.1 fsf 1 ; cpio -itvcB -I /dev/rmt1.1

erm.. Nothing happened. i do not know how to identify the different.

For
Code:
dd if=/dev/rmt1 of=/dir-with-enough-space/1.dd  -noerror
cpio -itv -I /dir-with-enough-space/1.dd

Unable to run this command successfully.

I will try to make a backup copy with a new LTO2 tape media. Thanks rene. Smilie
Last edited by polar; 07-17-2012 at 11:11 AM..
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