Originally posted by: SystemAdmin

Hi Champs

I have started backup of my filesystem using tar.

$ cd /
$ tar -cvf /dev/rmt0.1 .

However, it hanged when it reached /proc and not moving further. I have manually killed the process using kill command, but it still shows in the process list.

1. ps -eaf | grep rmt

root 852184 1183928 0 13:01:28 pts/0 0:00 grep rmt
root 1200220 1 120 Jan 21 - 2477:11 tar -cvf /dev/rmt0.1 .

Tried fuser also:

1. fuser -ck /dev/rmt0.1

fuser: 0506-077 Cannot find or open /dev/rmt0.1.

How do I kill the process without rebooting the system? Thanks for your help.

Abdul
#AIX-Forum

Originally posted by: Najam Kazi

Yaar Abdul,
You don't use tar to backup AIX OS image, use mksysb

1. mksysb -X -i -e /<directory-to-save>

and to kill the tar , search for tar # ps -aef | grep tar

and not ps -eaf | grep rmt
Najam Kazi
#AIX-Forum

Originally posted by: SystemAdmin

Thanks Najam.

But how do I kill the tar process? fuser and kill have not helped.

Any clues on how I can use /dev/rmt0.1 again?

Thanks
Abdul
#AIX-Forum

Originally posted by: Najam Kazi

I doubt that the process is still running. You might have closed the putty session and that might havve stoped/killed the task you were running. once you have the mksysb in a directory eg : /tmp/mksysb_of_server

issue # tar -cvf /tmp/mksysb_of_server /dev/rmt0

double check with the man tar command.

Najam
#AIX-Forum

Originally posted by: Kosala

Hi Abdul, I believe when you signal the tar process with "kill -9", it will simply ignore it... did you check whether the PID is changing when you issue a kill command?

One possibility of your situation could be the tar command thread is executing in the kernal space and unable to interrupt for signals. One thing you can try is unmounting the /proc. This is quite harmless (as long as you mount it back). This might be able to get your tar command back to a interruptable state.

Try playing with proctools, which might help to figure out your problem.

Cheers,
Kosala
#AIX-Forum

Originally posted by: SystemAdmin

Try switching off the tape drive->fuser -k /dev/rmt0->kill -9 PID->rmdev -dl rmt0->kill -9 PID

You can cfgmgr the tape after that.

Hope it helps.

r/
R
#AIX-Forum