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单选题
A customer is experiencing a performance bottleneck. The server is performing sequential I/O requests with large block sizes of 64KB. Improving which of the following storage subsystem characteristics has the biggest impact on this bottleneck？（）
A
Seek Time
B
Drive RPM
C
Data Transfer Rate
D
Rotational Latency
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单选题Which of the following environments is most closely addressed by the N series N3600?（）A
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a customer that requires good scalability and performance D
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单选题A customer is experiencing a performance bottleneck in a disk subsystem. The server is performing sequential I/O with a small number of users requesting large files. Which of the following would most likely resolve the bottleneck？（）A
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单选题A customer wants to purchase an IBM System Storage DS8700 to support a high-performance database environment. Which technical solution gives the customer the best relationship between I/O performance at the machine’s backend vs. capacity installed in the machine（）A
additional installation of the first and second expansion frame will increase the backend performance capabilityB
the usage of 300 GB/15k FC disks will give the server a high-performance backend capabilityC
performance Accelerator restricts the number of disks connected to one device adapter pair to 32 disksD
the second RIO-G loop between the base frame and the first expansion increases the backend performance
考题
单选题A customer has an x445 and uses the internal LSI adapter to manage two 146GB drives in the chassis. The customer is noticing performance issues when deploying a database with significant write activity on the internal drives. Should they consider using a ServeRAID-6M with 256MB of cache instead， and why or why not？（）A
Yes， the internal LSI SCSI adapter has no write cache.B
Yes， the internal LSI SCSI adapter is unreliable.C
No， the downtime to install the card and reformat the drives would be cost prohibitive.D
No， there will be no performance benefit， because drive performance is the bottleneck.
考题
单选题A customer is experiencing a performance bottleneck. The server is performing sequential I/O requests with large block sizes of 64KB. Improving which of the following storage subsystem characteristics has the biggest impact on this bottleneck？（）A
Seek TimeB
Drive RPMC
Data Transfer RateD
Rotational Latency
考题
单选题A server is experiencing performance issues and the SAN could be a potential bottleneck. Which command will show the queue depth of hdisk1?（）A
lspv hdisk1B
lscfghdisk1lscfg ? hdisk1C
lsdev c hdisk1lsdev ?c hdisk1D
lsattr l hdisk1lsattr ?l hdisk1
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