IBM C4090-453 Q&A - in .pdf

  • C4090-453 pdf
  • Exam Code: C4090-453
  • Exam Name: IBM System Storage DS8000 Technical Solutions V3
  • Updated: Aug 24, 2026
  • Q & A: 70 Questions and Answers
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IBM C4090-453 Q&A - Testing Engine

  • C4090-453 Testing Engine
  • Exam Code: C4090-453
  • Exam Name: IBM System Storage DS8000 Technical Solutions V3
  • Updated: Aug 24, 2026
  • Q & A: 70 Questions and Answers
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IBM C4090-453 Exam Syllabus Topics:

SectionObjectives
Installation and Configuration- Initial system setup and planning
- Host attachment and connectivity configuration
DS8000 Architecture and Concepts- Hardware components and virtualization concepts
- System architecture overview
Copy Services- FlashCopy functions
- Metro Mirror (PPRC synchronous replication)
- Global Mirror (asynchronous replication)
Troubleshooting and Maintenance- System maintenance procedures
- Problem determination and diagnostics
Storage Management and Operations- Performance monitoring and optimization
- Volume management and provisioning

IBM System Storage DS8000 Technical Solutions V3 Sample Questions:

1. A potential DS8870 customer knows that RAID 5 works much faster and is more capacity-efficient than RAID 6, but they fear for double disk failures due to high rebuild times at large disk sizes.
How should the technical specialist address this concern?

A) Discuss how additional hot spares can be configured per device adapter pair.
B) Suggest configuring large storage pools with multiple RAID 5 arrays.
C) Explain RAID 6 is the only applicable solution.
D) Discuss the DSS000 Smart Rebuild function with the customer.


2. Within the IBM disk storage portfolio, which of the following capabilities is unique to the DSS000?

A) Thin provisioning for distributed systems
B) Cache mirroring for all write data from servers
C) Point-in-time copy with full copy
D) Three-site cascaded replication


3. As with all types of technology. System z software occasionally needs to have maintenance applied to it to fix errors or to support enhanced functionally.
In the System z environment, this maintenance is known as:

A) Service Level sets
B) APAR5 and PTE5
C) MLs and Patches
D) Non-disruptive Code Loads


4. The DS Command Line Interface (CLI) of the DS8800 can be used to perform which two of the following configuration actions?
1.Assign RAID ranks to extent pools
2.Install and activate the D68000 storage tier advisor tool
3.Invoke a server failover/fallback
4.Create and assign LUNs to hosts/servers

A) I and 4
B) 2 and 4
C) 1 and 2
D) 3 and 4


5. A new D58000 mixed mainframe and open storage customer would like to connect older open (2 Gbps) and mainframe servers (4 Gbps) to the DS8000 system's 8 Gbps host adapters.
How can this be done?

A) through the GUI, adjust the required FOP ports for open to 2 Gbps and the FIOON ports for mainframe to 4 Gbps link speed
B) the customer needs to change the server's HBA5 to an 8 Gbps link speed type
C) the D58000 8 Gbps Host Adapter ports auto-negotiate to 4 Gbps and 2 Gbps link speed
D) the DS8OIJO supports 4 Gbps for mainframe connection; the 2 Gbps open systems connection must be connected via an intermediate SAN


Solutions:

Question # 1
Answer: D
Question # 2
Answer: D
Question # 3
Answer: B
Question # 4
Answer: A
Question # 5
Answer: C

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