IBM System Storage DS8000 Technical Solutions V3 : C4090-453 Exam Questions

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IBM C4090-453 Exam Syllabus Topics:

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. Which tool can a customer use without assistance to determine whether a mixture of different disk types, in conjunction with Easy Tier, could improve performance on a DS8000?

A) Capacity Magic
B) Storage Tier Advisor
C) Pre-Sales Advisor
D) Disk Magic

2. As the result of a performance sizing a D38870 system configuration must include 96 x 600 GB 10000 rpm SAS drives, and only 32 GB cache.
Which DS8870 system version should to be offered?

A) DS8870 business class configuration including 2 core processors
B) DS8870 business class configuration including 4 core processors
C) DS8870 enterprise class configuration including 2 core processors
D) DS8870 enterprise class configuration including 4 core processors

3. On the DS8870, which of the following drive options is a valid Easy Tier hybrid pool?

A) 7,200 RPM drives
B) eMLO SSDs and 5,400 RPM drives
C) 15,000 RPM and 7,200 RPM drives
D) SLO and eMLO SSDs

4. 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 Tivoli Storage Productively Center
B) Issue the CLI command dscli>verify-perf-read hit-time period
C) Use the pen stat command in the CLI
D) Use the DSS000 Real Time Performance Monitor

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

A) Volume 1 is in a Global Mirror relationship with Volume 2.
B) 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.
C) Volume 1 is in a Metro Mirror relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3.
D) 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.

Solutions: