transfer lvm image to another host

echo "dd start" | mail -s ready; dd if=/dev/system/machine-disk | ssh -c blowfish dd of=/dev/system/machine-disk ; echo "dd ready" | mail -s ready
1. Sends an email to announce the start of the command 2. Raw data copy of block device over ssh to a new host 3. Sends an email to announce the end of the command Make sure the lvm device at the other side exists and has the same amount of logical units.

By: mipmip
2016-03-01 13:13:20

2 Alternatives + Submit Alt

  • every 1sec sends DD the USR1 signal which causes DD to print its progress. Show Sample Output

    while :;do killall -USR1 dd;sleep 1;done
    oernii2 · 2010-04-07 09:23:31 3
  • Sends the "USR1" signal every 1 second (-n 1) to a process called exactly "dd". The signal in some systems can be INFO or SIGINFO ... look at the signals list in: man kill

    watch -n 1 pkill -USR1 "^dd$"
    ivanalejandro0 · 2012-08-31 05:15:45 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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