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質問 1：
A customer is looking to open a new data center and has asked about raised floor requirements to accommodate cabling for the DS8870.
What is the correct response?
A. Only a DS8870 with business class cabling can have top exit power cables
B. D38870 power cables can only be connected under the floor as DS8870 always requires a raised floor for cooling purposes
C. There is a feature which allows power and EC cables to exit from the top of the DSSS7O frames
D. An RPQ is needed to allow top exit cabling for a DSSSJO with any expansion frames
正解：C
質問 2：
The DS CLI can be invoked in which three modes?
1.Single-shot command mode
2.Interactive command mode
3.Script command mode
4.Background command mode
A. 2, 3, 4
B. 1, 2, 4
C. 1, 3, 4
D. 1, 2, 3
正解：D
質問 3：
What capability' of the DS8SOO helps prevent double drive failures?
A. Smart rebuild
B. Parallel volume create and delete
C. Quick initialization
D. RAID DP
正解：A
質問 4：
A customer would like to implement an enterprise solution and needs 200 TB usable capacity on a write intensive workload.
They are convinced that 600 GB drives are the optimum size for their business applications.
Very limited space is available for additional systems in their data center.
Which solution best meets this requirement?
A. Three fully-configured clustered Storwize V7000 systems
B. XIV Gen3 system with 13 modules
C. DS8870 system with two frames
D. DS8870 system with one frame and 5% SSD drives
正解：C
質問 5：
Which function is unique to the DS8000 within the following IBM disk storage products: DS8000, XIV, Storwize V7000?
A. Native encryption
B. Support for SSDs
C. Support for large form factor drives
D. Support for native Fibre Channel connections
正解：A
質問 6：
After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the disk system performance is in range.
How can the cache hit ratio be verified?
A. Use the DSS000 Real Time Performance Monitor
B. Issue the CLI command dscli>verify-perf-read hit-time period
C. Use the pen stat command in the CLI
D. Use Tivoli Storage Productively Center
正解：D
質問 7：
Which of the following items would suggest that the use of space efficient FlashCopy for the Global Mirror secondary volume could present an issue?
A. The workload has a large amount of heavy sequential write activity
B. There is a long distance between the primary and secondary sites
C. There are multiple primary disk subsystems in the Global Mirror session
D. The customer is using Tivoli Storage Productivity Center for Replication to manage Global Mirror
正解：A
A customer is looking to open a new data center and has asked about raised floor requirements to accommodate cabling for the DS8870.
What is the correct response?
A. Only a DS8870 with business class cabling can have top exit power cables
B. D38870 power cables can only be connected under the floor as DS8870 always requires a raised floor for cooling purposes
C. There is a feature which allows power and EC cables to exit from the top of the DSSS7O frames
D. An RPQ is needed to allow top exit cabling for a DSSSJO with any expansion frames
正解：C
質問 2：
The DS CLI can be invoked in which three modes?
1.Single-shot command mode
2.Interactive command mode
3.Script command mode
4.Background command mode
A. 2, 3, 4
B. 1, 2, 4
C. 1, 3, 4
D. 1, 2, 3
正解：D
質問 3：
What capability' of the DS8SOO helps prevent double drive failures?
A. Smart rebuild
B. Parallel volume create and delete
C. Quick initialization
D. RAID DP
正解：A
質問 4：
A customer would like to implement an enterprise solution and needs 200 TB usable capacity on a write intensive workload.
They are convinced that 600 GB drives are the optimum size for their business applications.
Very limited space is available for additional systems in their data center.
Which solution best meets this requirement?
A. Three fully-configured clustered Storwize V7000 systems
B. XIV Gen3 system with 13 modules
C. DS8870 system with two frames
D. DS8870 system with one frame and 5% SSD drives
正解：C
質問 5：
Which function is unique to the DS8000 within the following IBM disk storage products: DS8000, XIV, Storwize V7000?
A. Native encryption
B. Support for SSDs
C. Support for large form factor drives
D. Support for native Fibre Channel connections
正解：A
質問 6：
After initial installation of DSSSOO systems in a customer site a review must be conducted to verify that the disk system performance is in range.
How can the cache hit ratio be verified?
A. Use the DSS000 Real Time Performance Monitor
B. Issue the CLI command dscli>verify-perf-read hit-time period
C. Use the pen stat command in the CLI
D. Use Tivoli Storage Productively Center
正解：D
質問 7：
Which of the following items would suggest that the use of space efficient FlashCopy for the Global Mirror secondary volume could present an issue?
A. The workload has a large amount of heavy sequential write activity
B. There is a long distance between the primary and secondary sites
C. There are multiple primary disk subsystems in the Global Mirror session
D. The customer is using Tivoli Storage Productivity Center for Replication to manage Global Mirror
正解：A
石川** -
とっかかりには最高。C4090-453とても分かりやすかったです。C4090-453の本番試験にも無事合格しました。