IBM XIV Storage System Technical Solutions V4 : C4090-456

C4090-456 real exams

Exam Code: C4090-456

Exam Name: IBM XIV Storage System Technical Solutions V4

Updated: Aug 20, 2026

Q & A: 70 Questions and Answers

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IBM C4090-456 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: XIV Hardware Architecture25%- Reliability and serviceability
- Gen1 / Gen2 / Gen3 differences
- System components and modules
Topic 2: XIV Storage System Overview20%- Architecture and business value
- Competitive advantages
Topic 3: Interoperability & Migration10%- Data migration methods
- Host connectivity
- Virtualization integration
Topic 4: XIV Software & Features30%- Remote mirroring (sync/async)
- Snapshots and consistency groups
- GUI and CLI management
- Thin provisioning
Topic 5: Capacity & Performance Design15%- Performance optimization
- Capacity on Demand
- Workload sizing and best practices

IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. A customer wants to ensure resource availability for their SAP application by implementing Q0S. How could the performance class be defined?

A) for half of the interface modules add the SAP application, with the remaining modules serving all other I/O
B) limited to 10,000 IOPS and add the SAP application servers to it
C) for half of the interface modules add all hosts, with the remaining modules serving the SAP application
D) limited to 10,000 IOPS and add all hosts except the SAP application to it


2. On XIV what factors are important to successfully implement asynchronous mirroring?

A) latency between the remote and local XIV, number of volumes must be less than 256
B) each mirror must have the same RPO and sync interval within the same storage pool
C) data change rate, available bandwidth and interval
D) data change rate, number of volumes less than 256, required RPO


3. A customer builds a solution with SAN Volume Controller and an XIV system.
For best performance how many paths should be used between the SVC and the XIV system?

A) each SVC port should have one path to all available XIV interface modules
B) all XIV interface module FC ports should be zoned to each FC port on each SVC node
C) each I/O group must have one path to all available XIV interface modules
D) each SVC cluster should have one path to all available XIV interface modules


4. PowerVM is a requirement for XIV host attach to which of the following operating systems?

A) IBMi
B) LinuxonSystemz
C) VMware
D) AIX


5. Which statement is true when comparing an XIV Model 214 to Model 114?

A) Model 214 adds SSD caching functionality.
B) Model 214 supports ECoFconnectivityover dedicated ports.
C) Model 214 adds aniSCSI 10Gb/s configuration option.
D) Model 214 supports more HDDs in a fully configured system.


Solutions:

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

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