[ClusterLabs] how to properly add/delete qdevice for an existing cluster

[Sherrard Burton]

please forgive me if i have overlooked the answer somewhere.

i have an existing cluster that is already configured with a qdevice. i 
now wish to update that configuration to point at a different qdevice.

background:
for the sake of working through the initial configuration details, 
tuning, etc, i initially spun up a qdevice that lives on the same VM 
host as one of the member nodes. obviously this is not robust enough for 
production setup, so i have created a new qdevice elsewhere. now i want 
to update the existing cluster to point at the new qdevice. re-running 
corosync-qdevice-net-certutil results in:

Node <NODE1> seems to be already initialized. Please delete 
/etc/corosync/qdevice/net/nssdb


obviously, i could (and possibly must) muck around in 
/etc/corosync/qdevice/net/nssdb, but i thought i would ask on-list, for 
the benefit of future googlers, whether there is a proper way to manage 
the qdevice without blowing away the existing configuration and 
re-initializing.

TIA