SAP LVM 2.0 stopping central instance

Hi all,

We are on LVM 2.0 on NW 7.4, we have configured the landscape with the help of SLD which detects app1 as central instance even though we  have ASCS/ERS as different servers.

I have changed the option in LVM to treat Central instance as Instance only .

We are facing issues when stopping APP1 which is central instance even though it's just like any other app server.

All other apps like app2/app3 are going down in less than 30 sec from LVM  when we select mass stop and all APP1 are getting hung or taking long time to stop.

I have removed the dependency flag also , still the same result for APP1 servers.

Is there any reason why it's taking long time or any option we need to disable.

Pleae suggest..

Thanks,

Subhash.G