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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

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

2. An XIV snapshot is taken daily from the same volume and kept for one week.
If it is Friday and the system is restored from a snapshot taken on Tuesday, why is it possible to return to a snapshot taken on Thursday?

A) because there are no dependencies between subsequent snapshots
B) because there is sufficient space in the snapshot reserve
C) because snapshots were all converted to full copy
D) because the deletion priorityis set correctly

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

4. A customer wishes to mirror volumes between two XIV systems across Ethernet. What is the simplest way to achieve this?

A) connect interlace modules using a crossover cable
B) route Fibre Channel across IP
C) route InfiniBand across Ethernet
D) use the XIV system's SCSI ports

5. How much space will an XIV snapshot allocate from the pool's snapshot reserve when its created?

A) 17GB pervolume
B) 17GBperpool
C) 17GBpersnapshot
D) 0 GB per snapshot

Solutions: