mknod

How to save commands output on remote hosts in AIX?

leave a comment »

Sometimes in AIX, we need to send the output of a command (tar, mksysb, savevg, …) to other server! The following procedure will do this for us:

# mknod /tmp/pipe p # cat /tmp/pipe | ssh remote_user@remote_host “dd of=remote_file bs=1024” & # Commands like tar, mksysb, savevg, …

For Example:

# mknod /tmp/pipe p # cat /tmp/pipe | ssh remote_user@remote_host “dd of=remote_file bs=1024” & # savevg -f/tmp/pipe -vip vg_namep

# mknod /tmp/pipe p # cat /tmp/pipe | ssh remote_user@remote_host “dd of=remote_file bs=1024” & # mksysb -i /tmp/pipep

In the procedure above, the remote_file can point to any type of files, for example regular file, tape device file or etc.For example, to send mksysb command’s output to a remote tape:

# mknod /tmp/pipe p # cat /tmp/pipe | ssh remote_user@remote_host “dd of=/dev/rmt0 bs=1024” & # mksysb -i /tmp/pipe