单项选择题

Company.com has a four-node cluster （nodes ’A’， ’B’， ’C……

Company.com has a four-node cluster （nodes ’A’， ’B’， ’C’， and ’D’）. The nodes are set up in Resource group pairs. Node ’A’ falls over to Node ’B’， and Node ’C’ falls over to Node ’C’. During a maintenance windows， it was discovered that the six resource groups on Node ’A’ are too much to be adequately handled by Node ’B’.
What could be done to better utilize the available resources during fallover？（）

A. Implement Work Load manager so that the application monitors for additional resource requirements.
B. Add a fifth node to function as a load leveler in order to control the dispatching of the resource jobs.
C. Implement Dynamic Node Priorities in the resource groups in order to find a node with suitable system resources.
D. Reduce the number of resource groups on Node ’A’ to 1 in order to ensure faster and more robust fallover to a single system.

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单项选择题A two-node cluster has both a single TCP IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated，and Fast Disk Takeover will be implemented to meet the new Service Level Agreement. Which of the following should be implemented to increase the reliability of Fast Disk Takeover？（）

A. Disk should be mirrored across separate storage enclosures.
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C. Disk major and minor numbers should be set as unique across nodes.
D. Disk adapter queue_depth should be increased from the default values.

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A. Reboot each cluster node.
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A. a faster value on the fastest heartbeat network.
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A. AIX media only
B. HACMP media only
C. AIX and HACMP media
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