IBM XIV Storage System Technical Solutions V4: C4090-456 Exam
"IBM XIV Storage System Technical Solutions V4", also known as C4090-456 exam, is a IBM Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 70 Q&As to your C4090-456 Exam preparation. In the C4090-456 exam resources, you will cover every field and category in IBM Certified Specialist Certification helping to ready you for your successful IBM Certification.
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- Exam Code: C4090-456
- Exam Name: IBM XIV Storage System Technical Solutions V4
- Certification Provider: IBM
- Corresponding Certification: IBM Certified Specialist
- Updated: Sep 06, 2026
- No. of Questions: 70 Questions & Answers with Testing Engine
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IBM C4090-456 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Administration and Management | - Monitoring and performance management - Storage pool and volume management |
| Topic 2: Troubleshooting and Maintenance | - Firmware updates and system maintenance procedures - Common system issues and diagnostics |
| Topic 3: IBM XIV Storage System Architecture | - Grid architecture and data distribution concepts - XIV system components and design principles |
| Topic 4: Data Protection and High Availability | - Failure handling and redundancy mechanisms - Snapshot and replication concepts |
| Topic 5: Installation and Configuration | - Host connectivity and storage provisioning - Initial system setup and deployment |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
During data migration from a legacy storage system to the XIV system, there are eight hosts accessing eight separate volumes.
What is the maximum number of volume migrations allowed in the background while the eight hosts are actively running?
- A. 1per defined target
- B. 8perdefinedtarget
- C. 4perdefinedtarget
- D. 2perdefinedtarget
Expanding an XIV system with more modules for capacity and performance is an example of what?
- A. a grid-based storage architecture
- B. a clustered dual controller architecture
- C. a non-shared cluster architecture
- D. an active-passive controller architecture
On an XIV system, what is the minimum hardware configuration when the Capacityl on Demand feature is used?
- A. 9 modules
- B. 6 modules
- C. 15 modules
- D. 12 modules
How does the XIV system protect data arriving from hosts?
- A. MPIO distributes a single I/O down multiple paths to different XIV modules
- B. data is written to a single module before acknowledgement to the host
- C. each module internally mirrors its cache to a special segment of memory
- D. all data is written to cache in two modules and then acknowledged to the host
A TELCO customer has an application that generates intensive small block random reads. The customer installed one XIV Gen3 system and is dissatisfied with this choice. They have enough performance on writes and sufficient capacity.
In order to consolidate more applications what should the technical specialist advise?
- A. request IBM to change the nearline SAS drives with SAS 10k drives
- B. use external storage with FC drives and virtualize it under XIV
- C. order an extra frame with SAS 15k drives
- D. orderthe SSD option and use itin conjunction with Q0S
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