During a planning session， the customer indicates that they intend to build two independent two- Node clusters （cluster ’A’ and ’B’） that will be provided shared storage form an IBM TotalStorage FAStT900 server. The customer intends to present 2 LUNs to cluster ’A’， and 2 LUNs to cluster ’B’. All hosts will be dual attached via fibre. 
What additional hardware or software is necessary to make this a valid configuration？（）  

During the initial cluster design，a disk heartbeat，Point-to-Point non-IP network is being planned  as part of a three-node cluster implementation. The disk environment will use LVM mirroring for disk redundancy. The volume groups will be created as Enhanced Concurrent Capable. 
To facilitate disk heartbeating，how many disks per node and how many networks will be required？（）  

Company.com has two sites that are 3072 kilometers apart and wants to implement HACMP  between eh two locations. The nodes at each location must be capable of running the application in the event of a failure. Currently the customer’s disk technology is SCSI. 
How can HACMP be used in this environment？（）  

During Company.com planning session，Company.com presents the details of the current  Network design. The network design serves four separate company facilities， each on as separate subnet. As part of a disaster recovery plan， the customer is evaluating the use of HACMP. Specifically， the have reviewed IPAT via IP aliasing and are questioning the number of IP subnets required. 
Given the customer’s current configuration，what is the recommended minimum number of IP subnets that would be required？（）