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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. 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 databases should be reorganized into larger volumes on the XIV and not striped within the OS
B) add Fibre Channel adapters to the host and balance volumes across the adapters
C) implement static load balancing and increase the queue depth of the host adapters
D) the SAP volumes should be put into a QoS Performance Class

2. Which of the following external power inputs is available for full power redundancy of a six module XIV system?

A) two 30 amp, three-phase
B) six 20 amp, single-phase
C) four 30 amp, single-phase
D) four 20 amp, three-phase

3. On an XIV system, how can a thin provisioned volume be changed to a regular provisioned volume?

A) in the XCLI, use the command vol_resize on the volume
B) in the GUI, right mouse click on the volume and select"regular provision"
C) in the XCLI, use the command pool_change_config on the pool containing the volume
D) in the GUI, right mouse click on the volume and move itto a regular pool

4. 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) connect interlace modules using a crossover cable
C) route InfiniBand across Ethernet
D) use the XIV system's SCSI ports

5. On an XIV system, what is the minimum hardware configuration when the Capacityl on Demand feature is used?

A) 6 modules
B) 15 modules
C) 12 modules
D) 9 modules

Solutions: