Exam Code: C4090-456
Exam Name: IBM XIV Storage System Technical Solutions V4
Certification Provider: IBM
Corresponding Certification: IBM Certified Specialist

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Updated: Aug 13, 2026

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IBM C4090-456 Exam Overview:

Certification Vendor:	IBM
Exam Name:	IBM XIV Storage System Technical Solutions V4
Exam Number:	C4090-456
Passing Score:	61%
Certificate Validity Period:	2 years
Real Exam Qty:	60
Exam Duration:	90 minutes
Exam Price:	USD 200 (varies by region)
Available Languages:	English
Exam Format:	Multiple choice, Single answer, Scenario-based questions
Related Certifications:	IBM Certified Specialist - Storage Technical Solutions IBM Storage Administrator
Recommended Training:	IBM Training - XIV Storage System courses
Exam Registration:	IBM Certification Portal
Sample Questions:	IBM C4090-456 Sample Questions
Exam Way:	Online proctored or test center exam
Pre Condition:	Recommended: IBM storage fundamentals or equivalent storage administration experience
Official Syllabus URL:	https://www.ibm.com/certify

IBM C4090-456 Exam Syllabus Topics:

Section	Objectives
XIV Architecture and Concepts	- XIV system architecture 1. Grid architecture and scalability 2. Data distribution mechanisms - Hardware components 1. System redundancy design 2. Storage modules and interconnects
Administration and Management	- System monitoring 1. Event and alert management 2. Performance monitoring tools - Storage provisioning 1. Volumes and pools management 2. Snapshot configuration
Maintenance and Troubleshooting	- Problem determination 1. Hardware diagnostics 2. Log analysis - System maintenance 1. Component replacement procedures 2. Firmware upgrades
Installation and Configuration	- Host connectivity 1. Fibre Channel attachment 2. iSCSI configuration - Initial system setup 1. Network configuration 2. System initialization procedures
Performance and Advanced Features	- Performance optimization 1. Cache optimization 2. Workload balancing - Advanced storage features 1. Data replication concepts 2. Thin provisioning

IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. What is the benefit of VMware VAAI functionality?

A) provides multipathing for VMware servers to XIV systems
B) allows offloading extended VMware operations to the XIV system
C) integrates VMware disasterrecoverywith XIV remote replication
D) extends XIV storage provisioning functions to VMware vOenter

2. A customer has requested a highly available solution with fully concurrent fail over for a VMware farm of hosts. The customer also has Oracle databases that demand very low latency (0.5 ms and lower). What would be the best solution for this environment?

A) Two XIV systems setup in asynchronous mirror with SSDs and VMware SRM
B) SVC stretch clusterwith XIV and IBM FlashSystems (RamSan), plus enable EasyTier
C) Two XIV systems setup in synchronous mirrorwith SSD5 and VMware SRM
D) SVC with XIV and IBM FlashSystems (RamSan), plus enable Easy Tier

3. XIV hardware architecture optimizes the usage of snapshots by:

A) a redirect-on-write operation using all drives in any snapshot process
B) limiting the total number of snapshots to a maximum of 128 active pairs
C) offering the possibility to isolate the drives used for snapshot target space
D) copying data on write so the production drives are not over stressed

4. For optimum redundancy, how many paths between the host and a 15 module XIV should be configured for each LUN?

A) 6 paths
B) 2 paths
C) 12 paths
D) 4 paths

5. How does IBM XIV SSD technology provide longer life over competitors' use of SSD technology?

A) hybrid algorithms combine features of SSDswith existing HDDsin the same unit
B) patented wear-leveling algorithm designed for SSD longevity
C) common off-the-shelf components minimize the use of SSDs for write environments
D) IBM SSDs are filled with write blocks of 1024kb in random I/O operations

Solutions:

Question # 1
Answer: B

Question # 2
Answer: B

Question # 3
Answer: A

Question # 4
Answer: A

Question # 5
Answer: B

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