IBM C4090-453 Q&A - in .pdf

  • Exam Code: C4090-453
  • Exam Name: IBM System Storage DS8000 Technical Solutions V3
  • Updated: Oct 05, 2026
  • Q & A: 70 Questions and Answers
  • Printable IBM C4090-453 PDF Format. It is an electronic file format regardless of the operating system platform.
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IBM C4090-453 Q&A - Testing Engine

  • Exam Code: C4090-453
  • Exam Name: IBM System Storage DS8000 Technical Solutions V3
  • Updated: Oct 05, 2026
  • Q & A: 70 Questions and Answers
  • Install on multiple computers for self-paced, at-your-convenience training.
  • PC Test Engine Price: $67.99
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IBM C4090-453 Exam Syllabus Topics:

SectionObjectives
Solution Design and Sizing- Customer requirement analysis
- Sizing tools and capacity planning (e.g., Disk Magic, Capacity Magic)
Implementation and Configuration- Advanced functions configuration (FlashCopy, Global Mirror, etc.)
- Host attachment and interoperability
Pre-Sales and Customer Engagement- Technical and Delivery Assessment (TDA)
- Positioning and competitive differentiation
DS8000 Architecture and Features- Storage management and performance features
- System components and architecture

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

Question #1

A customer already has a D38000 with RAID 10 protection for their production data. They want to implement NL-SAS drives in the same DS8000 for archive data.
Which disk protection should be used for this and why?

  • A. RAID 6 because the time to rebuild NL-SAS drives would leave the array exposed for a long time after a single disk failure
  • B. RAID 0 because archive data isn't mission critical and they should use tape backup
  • C. RAID 5 because data on these drives is less critical than the production data
  • D. RAID 10 because this is the only protection supported for NL-SAS drives
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #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 enterprise class configuration including 4 core processors
  • C. DS8870 enterprise class configuration including 2 core processors
  • D. DS8870 business class configuration including 4 core processors
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

Which statement about I/O Priority Manager on the DS8000 is true?

  • A. It allocates cache on 4K boundaries to improve performance
  • B. It can interface with VMware VAAI primitives to improve performance
  • C. It can be more granular on z/OS than any other operating system
  • D. It needs at least two tiers of disks to work
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

The output of what tool is used as input to Disk Magic to most accurately model a Windows host that will be used with an IBM D38000?

  • A. IOSTAT
  • B. NMON
  • C. Jetstress
  • D. Perimon
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

A potential D68870 customer asks the technical specialist which extent size is used to relocate hot extents from normal SAS disk resources to SSDs because they want to understand IBM's adjustment compared to the other high end disk suppliers.
Which is the extent size used for DSS000 Easy Tier data relocation?

  • A. 8 GB
  • B. 256 MB
  • C. 2 BG
  • D. 1 GB
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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