Piotr Kaczmarzyk wrote:
I'll answer to myself (partially) - first of all I found 'Filesystem'
OCF script and it's use of fuser command (so the recommended solution
is to kill everything), second - I read a note on
http://www.linux-ha.org/HaNFS saying that "NFS-mounting any filesystem
on your NFS servers is highly discouraged".
I don't understand why. I did that manually and it worked:
One reason may be that sometimes when you try to unmount an nfs mounted
file system, the system gets hung and there is no power that can get it
out of that state, except for a reboot by pressing the reset key in the
machine (you can wait for hours while the NFS mounted file system waits
to be unmounted on a reboot/shutdown command and it will not do it). So
you want to make sure you avoid that situation on your server by not nfs
mounting itsefl. Otherwise, it could hold the drbd file system mounted
and you will not be able to fail over.
Diego
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