Add space to lv greyed

[To-P]

You need to remove the "use volume replication" option first in Configuration -> volume manager -> vol. groups for the specified logical volume.
You will also need to increase the size of the corresponding logical volume on the other node.
Please make sure that the logical volumes on both nodes have exactly the same size. Please also be careful when resizing the logical volumes as there is no possibility to decrease the volumes.

[andreasg]

Thanks for the fast reply.

Now it worked without loose of Data ;-)

btw: you have to remove the replication task also.