最新的IBM Certified Specialist認證 C4090-453考試題庫

問題1

What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?

A. Call Home and Dial-in support

B. Built-in redundancy

C. Subsystem Device Drivers

D. Control-unit Initiated Reconfiguration support

正確答案: B

問題2

A Business Partner has just received a REP from a customer for new disk subsystems for their data centers which are 500 km apart. DS8000 Global Mirror will be proposed. The customer wants to manage the replication environment using off-the-shelf software rather than custom scripting. The customer already has EMC Symmetrix replicating between their data centers.
Which of the following should be proposed to manage the D58000 replication?

A. Tivoli Storage FlashCopy Manager V3.1

B. EMC Recover Point 3.5

C. DS8000 Storage Manager GUI 6.3

D. Tivoli Storage Productivity' Center V5.1

正確答案: D

問題3

A customer has submitted an REP for which a DS8870 is the preferred solution to support their VMware environment. They require support for VAAI Extended Copy.
What should the technical specialist advise this customer?

A. DS8870 supports the VAAI functionality required by this customer

B. A SAN Volume Controller must be proposed along with the DS8870 to provide VAAI support

C. A DS8870 with FlashCopy should be proposed

D. VAAI is only a host function so any disk subsystem can be considered

正確答案: A

問題4

A potential D6881J0 customer asks the technical specialist if the D38800 systems provide a point in time copy solution where the FlashCopy volume can logically be pre-configured but no disk space is allocated as long as there are no updated tracks written.
Which D38800 FlashCopy method supports this customer's requirement?

A. dataset FlashCopy

B. space efficient FlashCopy

C. FlashCopy with N000PY option

D. incrementalFlashCopy

正確答案: B

問題5

What is the standard topology for volume relationships in a DS8000 Global Mirror environment?

A. Volume 1 is in a Global Copy relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3. Volume 1 and Volume 2 are also defined in the Global Mirror session.

B. Volume 1 is in a Global Copy relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3. Volume 1 is also defined in a Global Mirror session.

C. Volume 1 is in a Global Mirror relationship with Volume 2.

D. Volume 1 is in a Metro Mirror relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3.

正確答案: B

問題6

A customer wants to add a new DSS8OFJ into a data center that is already in production. How is it possible to verify that the DS8800 is supported into the customer's SAN and server infrastructure?

A. The D58800 is compatible with every SAN infrastructure

B. Check the System Storage Interoperation Center

C. If there are other DS8000 systems in the data center there is no need to check for any compatibility

D. Check the interoperability matrix

正確答案: B

問題7

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. Issue the CLI command dscli>verify-perf-read hit-time period

B. Use the pen stat command in the CLI

C. Use Tivoli Storage Productively Center

D. Use the DSS000 Real Time Performance Monitor

正確答案: C

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