单选题
A new Disaster Recovery site has been established using Metro Mirror to hold synchronous data at both sites. After the Metro Mirror is started， one of the most important applications， a DB2 database， slows down. An analysis shows that the I/O rate （especially write I/Os） is less than 40% compared to the former rates. What is the best explanation for this behavior（）
the bandwidth of the PPRC connection between the two sites is too small
the DS8000 SFI at the remote site was shipped with slower disks
I/O rates vary， depending on the distance between the two sites and the rates cannot be changed easily， due to latency
the DB2 database does not work with Metro Mirror without an additional license
单选题
A customer with a single IBM System Storage DS8100 reports severe performance problems for some of their applications when a particular data warehousing application creates a heavy load. What is the most cost effective way to resolve this issue（）
add additional disks to the DS8100
add more cache to the DS8100
move affected volumes to a different disk enclosure
implement TPC for Disk to monitor performance
单选题
The customer forgot the admin password for the Storage Manager and had access denied to the storage. No additional admin accounts have been created. What should be done to access the storage again（）
access the storage through the serial port and change the password for the admin account
log a call to IBM support
log in to the HMC and open a browser； no password is required
download a script from the IBM website and reset the password with the superuser account
单选题
A customer has bought an IBM System Storage DS8700 and wants to attach ten SuSE Linux Enterprise Server hosts to the DS8700 with multiple paths. What is the Multipathing Driver the customer needs（）
PowerPath
Subsystem Device Driver Device Specific Module
Subsystem Device Driver Path Control Module
DeviceMapper Multipath
单选题
A storage administrator wants to configure the DS8000 CIM Agent for Tivoli Storage Productivity Center for Disk Version 4.1.1. What is the required tool to configure the CIM Agent（）
the DS command line interface
the Storage Manager interface on the HMC
the DS8000 Storage Manager
the DS CIM command line interface （DSCIMCLI）
单选题
A customer would like to implement an IBM System Storage DS8000 solution that requires 225 TB raw capacity. They are convinced that 450 GB is the optimum size for their business applications. There is limited space available for additional machines in the data center. Which solution meets best this requirement（）
DS8700 system with three frames
DS8800 system with threeframe
DS8700 system with two frames
DS8800 system with two frames
单选题
An IBM Business Partner sells an IBM System Storage DS8700 to a customer. Who is responsible for the installation and set up of the storage server（）
purchasing customer
IBM Installation Readiness Team
IBM Customer Engineer
IBM Business Partner
单选题
A customer has no available floor space for expansion and room for only one disk enclosure pair in their DS8700. Four disk enclosure pairs are required to meet the current I/O needs of a data warehousing application. They are only utilizing 10% of their total capacity. Another application workload needs to be added to the system but requires two disk enclosure pairs. The customer is considering SSD and Easy Tier. Which of the following is the primary function of Easy Tier（）
reduce power consumption per unit of storage
balance the total workload with other DAs
automatically moves hot spots to the appropriate resource
SANtiering permits more flexibility by adding additional data paths
单选题
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（）
sector size and the amount of production data
existing RAID levels and the disk drive speed
sector size and existing RAID levels
amount of production data and the disk drive speed
单选题
Which is a benefit of using the IBM DS8000 FlashCopy SE （PTC-SE）（）
FlashCopy SE （PTC-SE） is much faster than the traditional DS8000 full-volume FlashCopy
FlashCopy SE （PTC-SE） also supports background copy
FlashCopy SE （PTC-SE） is optimized for use in cases where a high percentage of the source volume is updated during the life of the relationship
the additional capacity required forFlashCopy SE （PTC-SE） must only be planned for data which is changed on the source volume during host I/O transaction
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