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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. A customer has requested a highly available solution with fully concurrent fail over for a VMware farm of hosts. The customer also has Oracle databases that demand very low latency (0.5 ms and lower). What would be the best solution for this environment?

A) Two XIV systems setup in asynchronous mirror with SSDs and VMware SRM
B) SVC with XIV and IBM FlashSystems (RamSan), plus enable Easy Tier
C) SVC stretch clusterwith XIV and IBM FlashSystems (RamSan), plus enable EasyTier
D) Two XIV systems setup in synchronous mirrorwith SSD5 and VMware SRM

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

3. A storage administrator wishes to migrate a legacy storage controller's volumes to a SAN Volume Controller. The controller can provide SAS or iSCSI host connections only. An XIV is virtualized by the SVC and has been upgraded from six modules to nine to assist with the migration project. The additional storage is yet to be presented to the SVC.
What would be the best method to transfer the data?

A) Present volumes to the XIV using SAS. Migrate the volumes to XIV using the availablecapacitythen to the SV
B) Present volumes to the SVC using iSCSl. Mirror the volumes onto the newly-presented XIV storage.
C) Presentvolumestothe SVC using SAS. Mirrorthe volumes onto the newly-presented XIV storage.
D) Present volumes to the XIV using iSCSl. Migrate the volumes to XIV using the availablecapacitythen to the SVC.

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

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

5. XIV hardware architecture optimizes the usage of snapshots by:

A) a redirect-on-write operation using all drives in any snapshot process
B) limiting the total number of snapshots to a maximum of 128 active pairs
C) offering the possibility to isolate the drives used for snapshot target space
D) copying data on write so the production drives are not over stressed

Solutions: