...
Down the share (useful for planned maintenance)
drbdadm down jtelshared
Up the share
...
drbdadm up jtelshared
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Set the node to primary
drbdadm primary jtelshared
...
...
drbdadm down jtelshared
...
drbdadm up jtelshared
...
drbdadm primary jtelshared
...