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Which of the following statements about DS8000 hard drive technology is correct?
A. All types of the 2.5″ disk drives offered by the DS8800 system have higher performance than the 3.5″
disk drives supported by DS8700
B. The 2.5″ disk drives included on the DS8800 support 6Gbps SAS; the 3.5″ disk drives in DS8700 are 4
The 2.5″ disk drives included on the DS8800 support 8Gbps SAS; the 3.5″ disk drives in DS8700 are 4
The 2.5″ 15k rpm drives offered by the DS8800 system support 6Gbps SAS-2
Correct Answer: D
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?
A. add additional disks to the DS8100
B. add more cache to the DS8100
C. move affected volumes to a different disk enclosure
D. implement TPC for Disk to monitor performance
Correct Answer: C
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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?
A. using the “vmstat” command on the AIX servers connected via SAN to the DS8700 system
B. look at the IOPS using the DS8700
C. reading the performance reports via Tivoli Storage Productivity Center for Disk
D. generating reports using theTotalStorage Expert
Correct Answer: C
A customer has an IBM System Storage DS8700 at their primary site and an XIV system at their recovery
site, which is 9.5 kilometers away. They want to replicate data for disaster recovery backup. Which factor
is a primary consideration when proposing a solution for this customer?
A. compatibility of copy functions
B. difference in capacities in the two systems
C. cache size discrepancies between the two systems
D. the necessity of using two storage management products
Correct Answer: A
Consider the following XML Schema: