An existing cluster has an application node and database node. Changes in the application  require both nodes to have access to the other’s data all of the time. 
Which facility managed by HACMP can be implemented with the least amount of impact？（）   

单项选择题Company.com is migrating from a third party managed disk subsystem to an IBM TotalStorage Enterprise Storage Server. Connection of the new storage server is complete， and it has been tested on all of the nodes in the three node HACMP cluster.  How does the customer migrate to the new storage server with minimum down time？（）

A. Shut down one node at a time and let the other node serve the application
B. Stop HACMP with the forced option and perform migration of the disks on one node，then restart HACMP
C. Stop both nodes and perform the migration all at once using standard AIX commands in parallel， then restart the cluster
D. Use C-SPOC to add the new disks to the cluster and migrate the information off the existing disks， then remove the old disks with C-SPOC

单项选择题Company.comwithanEtherChannelimplementationisconsideringanHACMPsolution.Whatconsiderationsmustbeaddressedinplanningthisconfiguration？（）

A. Hardware address takeover must be configured.
B. IPAT via IP aliasing is required for EtherChannel.
C. EtherChannel must be defined as a separate network.
D. HACMP does not support the fallover of EtherChannel.

单项选择题Continuous availability is required for an application in a two-node cluster. There is one rotating resource group in the cluster， and the nodes are identical machines. Client telnet connections to the application cannot be broken because it takes 20 to 30 minutes to recycle the client workstations and transactions will be lost.  What configuration best provides continuous connectivity to the application？（）

A. IPAT using IP Replacement without MAC address takeover.
B. IPAT using IP Aliasing and hardware MAC address takeover.
C. None because continuous telnet connectivity cannot be provided with HACMP.
D. Shared service IP address assigned to multiple network interface cards on each node.

单项选择题Company.com wishes to use IPAT via IP replacement in a two-node mutual cluster. Each node  has two Ethernet 10 100 1000 adapters. Throughout the planning session，the customer has asked questions about subnet and VLAN requirements for the intended network topology.  Which of the following best describes the network requirements？（）

A. The service IP addresses must be on a separate subnet and VLAN.
B. The non-service and service IP addresses must be on the same subnet and on the same VLAN.
C. All interfaces on a node must be in different subnets. All subnets must be on the same VLAN. 
D. One non-service and one service IP address must be on the same logical subnet. All interfaces must be on the same VLAN.

单项选择题An enterprise has three nodes： -Node ’A’ is a production database， -Node ’B’ is a production  Application server， and -Node ’C’ is a test and development node. Node ’C’ is used by six programmers to develop and the production application as business critical and would like to make it highly available with HACMP. Application development and testing is not business critical.  Which of the following describes the best solution？（）

A. There is not an adequate solution because HACMP should not be configured in this environment without a dedicated standby node.
B. Nodes ’A’ and ’B’ should be configured in a cluster with mutual fallover of two cascading resource groups to provide both nodes will deliver acceptable response time with both resource groups.
C. Nodes ’A’ and ’C’ should be configured in one cluster， and Nodes ’B’ and ’C’ in another cluster to prevent both the database and application server from falling over to Node ’C’ at the same time.
D. Nodes ’A’， ’B’， and ’C’ should be configured in a cluster with Node ’C’ the hot standby for both the database and application server resource groups. Workload Manager （WLM） must be configured on database and application developers from over utilizing the CPU resources.