IBM XIV Storage System Technical Solutions V4 認定 C4090-456 試験問題:
1. When does XIV Gen3 SSD caching significantly improve performance?
A) for small block, sequential write I/O workloads
B) for small block, random read I/O workloads
C) for GPES random workloads
D) for large block, sequential read I/O workloads
2. Following a proof of concept, it has been determined that an eleven module XIV system containing 2 TB drives is the minimum configuration suitable for the workload, which consists primarily of random writes. The customer is concerned about the upfront costs so the sales representative has suggested a six module system with 3 TB drives, which would also provide ample capacity for the application.
Given the customer's concerns, which configuration should the technical specialist recommend to best meet the customer's requirements?
A) a nine module XIV with 2 TB drives and six CoD activations
B) a six module XIV with 3 TB drives and SSDs
C) an eleven module XIV with 3 TB drives and six CoD activations
D) an eleven module XIV with 2 TB drives and eight CoD activations
3. Based on best practice, what is the optimal number of SVC Fibre Channel connections to a full 15 module XIV?
A) connecttheSVCtol6XlVports
B) connect the SVCto 12 XIV ports
C) connect the SVC to 9 XIV ports
D) connect the SVC to 6 XIV ports
4. How does the data migration feature enable the smooth transition of a host to an XIV system?
A) By using the XIV Host Attachment Kit (HAK) migration software to send concurrent writes to the legacy storage system and the IBM XIV simultaneously, while copying the older data across in the background.
B) By connecting the host to the XIV, which then provides access to the data on the legacy storage system while transparently copying the data across in the background.
C) By deploying an XIV unique implementation of VMware's Storage vMotion that has been engineered to support Linux and Microsoft hosts natively.
D) By enabling everyXIV PC portto be both target and initiator so that host requests are received bythe XIV and retransmitted to the legacy storage system simultaneously.
5. PowerVM is a requirement for XIV host attach to which of the following operating systems?
A) IBMi
B) VMware
C) LinuxonSystemz
D) AIX
質問と回答：
| 質問 # 1 正解： B | 質問 # 2 正解： D | 質問 # 3 正解： B | 質問 # 4 正解： B | 質問 # 5 正解： A |
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