单项选择题 A customer wants to directly attach five servers to an IBM System Storage DS8100. They do not intend to use any SAN switches and would like the servers to have a redundant connection to the IBM DS8100. What is the minimum number of DS8000 host adapter cards that the customer will require（）

单项选择题 A customer has an IBM System Storage DS8100 and wants to reach the highest possible throughput in the back-end for a storage-pool-striped volume out of an extent pool with 8 ranks.  Over how many device adapter pairs should a technical specialist spread the workload（）

单项选择题 A customer wants to consolidate storage from four IBM System p servers and one large IBM System i server. The customer does not have a SAN installed. The customer will require approximately 4 TB for System p and 3 TB for System i. The customer states that performance and isolation of the System i system is most important. Capacity， multi-path access， and replication functions are important for the System p servers.    Which solution best satisfies the customer requirements（）