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IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. Which of the following statements is true of the XIV architecture?

A) For each mirrored 1 MB partition, one copy is always on an interface module.
B) Every logical volume is spread over every physical drive.
C) Storage Pools are used to group volumes with similar performance requirements.
D) In a fifteen module XIV, fifteen physical disks are allocated as hot spares.

2. What is a benefit to IBM's XIV SSD transparent read cache?

A) real-time cache algorithm; not policy-based
B) SSD read cache is a separate tier
C) SSD drives add usablecapacitywithout user intervention
D) performance improvement in sequential reads

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

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

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

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

5. When creating a thin provisioned volume on an XIV the maximum capacity is limited by:

A) the softcapacityof the storage pool where the volume resides
B) the hard capacity of the storage pool where the volume resides
C) the vol_size_max configuration parameter
D) the availablecapacityin the XIV system

Solutions: