A customer has an EMC Symmetrix DMX3000 that is at the end of lease. The environment consists of IBM System p， IBM System i， and IBM System z. The customer is evaluating EMC，  
HDS， and IBM storage as possible replacements. They are interested in comparing the performance of all three disk subsystems. 
Which tool compares performance（）

单项选择题A customer wants to collect performance data from a newly installed IBM System Storage DS8700 to determine if the system meets expected benchmarks using their application test data.  Which tool best gathers the performance data（）

A.IBM DS Storage Manager
B.Tivoli Storage Resource Manager
C.Tivoli Storage Productivity Center for Disk
D.Tivoli Storage Productivity Center for Data

单项选择题A company has acquired another company and is consolidating data centers. During the consolidation， half of the users of a business critical application lost access. The users who maintained access experienced slow performance.  What is the first action the SAN storage administrator should take to determine the source of the problem（）

A.review SAN configuration， connectivity， and zoning
B.review application parameters for contention or tuning problems
C.use internal disk monitoring tools to determine the problem source
D.check the disk parameters in the OS setup on the systems

单项选择题The Business Partner technical specialist is called to determine if the addition of host ports on an IBM System Storage DS8700 has improved users’ response times for an IBM System p server running SAP.  How can the improvement be verified（）

A.check the output of the "vmstat" command on LINUX
B.check the performance reports via Tivoli Storage Productivity Center for Data
C.check the performance reports via Tivoli Storage Productivity Center for Disk
D.check the output of the "iostat" command on AIX

单项选择题WhatisonereasonthecustomershouldinstallIBMDS8000VirtualPrivateNetwork（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 recently installed new a SAN with an IBM System Storage DS8700 and several open systems servers to address a need for storage consolidation and still provide good response time. They have asked the Business Partner technical representative for the most complete IBM product that would allow them to do performance reporting of the new SAN environment.  What is the best solution（）

A.Tivoli Storage Manager
B.Tivoli Storage Productivity Center for Disk
C.Tivoli Storage Productivity Center Basic Edition
D.Tivoli Storage Productivity Center Standard Edition