[linux-lvm] strange, vgcreate no -c options, but it can find vg on other node

[yue]

two nodes  share one lun  over ip-san, 
node1  create vg01 without -c
server1# vgcreate  vg01  /dev/sd*
node2 vgscan
server2# vgscan
it can find vg01 on server2
 
 
why?  i think   it is must to run clvmd, then  attach share lun ,then vgcreate/lvcreate/...
it is strange.
do you know why?
thanks
 
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