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IBM C4090-456 Exam Syllabus Topics:

IBM XIV Storage System Technical Solutions V4 Sample Questions:

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

2. Which of the following occurs in the event of an SSD failure in an XIV system?

A) All cached write data on the SSD is destaged to disks and SSD caching is disabled until the failed SSD is replaced.
B) The module containing the failed SSD is phased out and all data is redistributed to the remaining modules.
C) The failed SSD's contents are rebuilt onto the hot spare SSD in the maintenance module.
D) The extended read cache workload of the module with the failed SSD is redistributed to the remaining modules.

3. Which is the correct method to access the XIV Multi-system Manager (MSM)?

A) VMware vOenter console to the MSM
B) XIV GUI to the MSM using server mode
C) Remote Desktop (RDP) session to the MSM
D) Puttysession to the MSM P address

4. On XIV what factors are important to successfully implement asynchronous mirroring?

A) data change rate, number of volumes less than 256, required RPO
B) latency between the remote and local XIV, number of volumes must be less than 256
C) data change rate, available bandwidth and interval
D) each mirror must have the same RPO and sync interval within the same storage pool

5. Which XIV system feature increases the level of reliability of the system?

A) solid state drives
B) protected cache
C) Quality of Service
D) snapshots

Solutions: