A.Addstoallnodeswiththeclusterrunning.
B.Addstoallnodeswiththeclusterstopped.
C.Addswiththeclusterrunning，usesLazyUpdatetoperformthelogicalvolume synchronization.
D.Addstoallnodeswiththeclusterrunningbutrequiresthevolumegroupstobeexportedandimportedafter.
参考答案：A
