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（）

A.to avoid using a more expensive dial-up modem
B.to load new licensed internal code
C.to achieve more efficient and faster problem resolution
D.to enable capacity on demand

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（）

A.sector size and the amount of production data
B.existing RAID levels and the disk drive speed
C.sector size and existing RAID levels
D.amount of production data and the disk drive speed

单项选择题A customer has 6.5 TB with 146 GB 15k disk drives on an IBM System Storage DS8700. They want to add 15 TB using 300 GB 15k disk drives. The customer is concerned about performance and wants to know if the DS8700 has the performance capability.  What is the appropriate way to  model the performance（）

A.Disk Magic
B.Capacity Magic
C.test the workload at an IBM Benchmark Center
D.test the solution with IBM Storage Performance Center

单项选择题A bank has requested proposals for a storage solution to upgrade their disaster recovery processes for their IBM System z， UNIX， and Microsoft Windows environment. The solution must simulate a multi-site environment and provide the customer the ability to evaluate Metro Mirror， Global Mirror， Global Mirror for z OS， and FlashCopy. 120 TB physical capacity is required per site. Only Fibre Channel drives can be used.  Which solution best meets the specified requirements（）

A.two DS8700 systems with two-way processor cards and 600 GB FC drives
B.two DS8700 systems with four-way processor cards and LPAR
C.two DS8700 systems with two-way processor cards and two frames per system
D.two DS8700 systems with four-way processor cards and two frames per system

单项选择题A customer needs 40 TB for Tier 2 Information Lifecycle Management （ILM） data installed on the System z VM. Their current data center is critically short of floor space.  Which of the following would satisfy the customer requirement（）

A.a DS5300 withFibre Channel drives 
B.an XIV with 15 modules of 1 TB drives 
C.a DS5100 with 2 TB SATA drives
D.an XIV with 6 modules of 1 TB drives