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IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: XIV Architecture and Concepts | 25% | - Hardware components and system layout
|
| Topic 2: Operations and Administration | 25% | - User and access management
|
| Topic 3: Data Protection and Replication | 15% | - Snapshot and backup features
|
| Topic 4: Troubleshooting and Maintenance | 15% | - Problem determination
|
| Topic 5: Installation and Configuration | 20% | - Storage provisioning
|
IBM XIV Storage System Technical Solutions V4 Sample Questions:
Which statement is true regarding XIV virtualization and the advanced snapshot mechanism?
- A. A volume's snapshot can be copied to a volume in another storage pool.
- B. A volume and its corresponding snapshots can be part of several storage pools.
- C. A volume and its corresponding snapshots can be part of several consistency groups.
- D. A volume can have one snapshot only.
A customer complains that their SAP database now performs worse than it did before being migrated from traditional RAID storage to XIV. The database was configured using 20 x 200GB XIV LUNs presented to an AIX 6 host OS where they are concatenated and striped into six volumes for the databases and logs. No changes have been made in the transition to XIV.
What if anything can be done to improve performance?
- A. the SAP volumes should be put into a QoS Performance Class
- B. the databases should be reorganized into larger volumes on the XIV and not striped within the OS
- C. implement static load balancing and increase the queue depth of the host adapters
- D. add Fibre Channel adapters to the host and balance volumes across the adapters
What is the benefit of VMware VAAI functionality?
- A. provides multipathing for VMware servers to XIV systems
- B. extends XIV storage provisioning functions to VMware vOenter
- C. integrates VMware disasterrecoverywith XIV remote replication
- D. allows offloading extended VMware operations to the XIV system
In a six module XIV system, I/O activity involving a specific logical volume is handled by how many spindles?
- A. 72
- B. 108
- C. 36
- D. 180
A customer wishes to mirror volumes between two XIV systems across Ethernet. What is the simplest way to achieve this?
- A. route Fibre Channel across IP
- B. route InfiniBand across Ethernet
- C. use the XIV system's SCSI ports
- D. connect interlace modules using a crossover cable
