Various state for pbsnodes

could you help me understand status for pbsnodes ?

pbsnodes hostA
Mom = mmsimcm36c-4
ntype = PBS
state =
pcpus =

I tried restart pbs_mom and did not help.
and I am not able to remove this node from qmgr also.

Qmgr: d n hostA
qmgr obj=hostA svr=default: Cannot delete busy object
qmgr: Error (15027) returned from server


false alert. it was due to wrong DNS entry for hostA. after correct the DNS and it shows normal now.