单项选择题 A customer using an IBM System Storage DS8700 is facing performance problems. After the analysis by the technical specialist， the diagnosis indicates that the cache hits may be improved by a cache upgrade.  How can the system be monitored in order to check the benefits of the cache upgrade（）

单项选择题 WhatisreasonthecustomershouldinstallIBMDS8000VirtualPrivateNetwork（VPN）technologyfortheCallHomefunction（）

单项选择题 A customer has an IBM System Storage Enterprise Storage Server and several EMC CX3 systems installed in a data center， attached to IBM System p servers. As a step toward data consolidation， they intend to put all data on a new DS8700.  What would be the most important data migration factors to consider（）