The ISM frenquently pop up prompt with below window.
Add ACL on firewall, allow port 8011 connection between ISM agent and storage.
1 ISM agent on PC can manage the storage. It shows the connection from ISM agent to storage is all right.
2 That alarm means the storage can not pull out information to ISM agent. It shows the connection from storage to ISM agent has some fault.( Firewall prevent it or route faulty)
3 Learned from customer, the communication port 8011 was denied by firewall from storage to ISM agent.