PDF Version DemoAlong with the coming of the information age, the excellent IT skills are the primary criterion for selecting talent of enterprises. IBM Certification gives an IT a credential that is recognized in the IT industry. It can act as a passport to a well-rewarded job, smooth the path to promotion or higher earnings. Here, IBM certification C4090-456 exam (IBM XIV Storage System Technical Solutions V4) is a very important exam to help you get better progress and to test your IT skills.
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IBM C4090-456 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Protection and High Availability | - Failure handling and redundancy mechanisms - Snapshot and replication concepts |
| Installation and Configuration | - Initial system setup and deployment - Host connectivity and storage provisioning |
| IBM XIV Storage System Architecture | - XIV system components and design principles - Grid architecture and data distribution concepts |
| Troubleshooting and Maintenance | - Firmware updates and system maintenance procedures - Common system issues and diagnostics |
| Administration and Management | - Monitoring and performance management - Storage pool and volume management |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
1. Expanding an XIV system with more modules for capacity and performance is an example of what?
A) a non-shared cluster architecture
B) a clustered dual controller architecture
C) an active-passive controller architecture
D) a grid-based storage architecture
2. Which of the following statements is true of the XIV architecture?
A) For each mirrored 1 MB partition, one copy is always on an interface module.
B) Storage Pools are used to group volumes with similar performance requirements.
C) Every logical volume is spread over every physical drive.
D) In a fifteen module XIV, fifteen physical disks are allocated as hot spares.
3. 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) use external storage with FC drives and virtualize it under XIV
B) order an extra frame with SAS 15k drives
C) request IBM to change the nearline SAS drives with SAS 10k drives
D) orderthe SSD option and use itin conjunction with Q0S
4. A customer has purchased a six module XIV Gen3 for a new project, which is located in a new data center. A new requirement states that a portion of the project data must be replicated to an existing six module XIV (Gen2) at the customer's primary data center, 500 km away. The target XIV has sufficient capacity but no Fibre Channel connectivity exists between sites. The customer therefore decides to use iSCSI replication.
Which upgrade is required to meet the requirements?
A) add modules to the existing (secondary) XIV
B) replace the new (primary) XIV Gen3 InfiniBand switches with Ethernet switches
C) add modules to the new (primary) XIV Gen3
D) add modules to both XIV systems
5. A customer reports performance problems on an XIV Gen3 system. After further analysis of performance statistics, it appears that latency is high for reads but writes are acceptable. I/O size is generally small, with more writes than reads. Which option is likely to help the situation?
A) install ECoE adapters in the host
B) enable IBM Easy Tier on the volumes
C) installSSDsintheXIVsystem
D) implementvolume striping on the host
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: C |
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