How to freeze/unfreeze the service group in VCS

WHY WE USE FREEZE

In case you want to add application in any service group or want to perform any maintenance activity. Than you can freeze the Service group or cluster node. After freeze the node VCS don’t take any action.
FREEZE Types:
• Persistent:- If cluster node reboot during the activity or after the activity than Cluster node state still remain freeze .
Ref: (frozen=1)
• Temporary:- If cluster node reboot during the activity or after the activity than Cluster node state will be unfreeze automatically.
Ref: (tfrozen=1)
Note: If not freeze than value=0

Freeze Service group:
Permanently
#
hagrp –freeze <Service group name> –persistent

Temporary
#
hagrp –freeze <Service group name>

Freeze Cluster node
#
hasys -freeze [-persistent] node1

Unfreeze Service group:-
#
hagrp –unfreeze <Service group name> –persistent

Temporary
#
hagrp –unfreeze <Service group name>

Unfreeze Cluster Node:-
#
hasys -unfreeze [-persistent] node1

For check freeze status:-
#
hagrp -display|egrep -I ‘frozen|tfrozen’
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