[root@comapp1]$ metaset -s ora-rac-ds                 

Multi-owner Set name = ora-rac-ds, Set number = 1, Master = 

Host                Owner          Member
  comapp1                          Yes 


[root@comapp1]$ metaset -s ora-rac-ds -a -h comapp2
metaset: comapp1: ora-rac-ds: node comapp2 is not in membership list