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EMC XtremIO 3.x Flash Storage Solutions Sample Questions:

1. Based on best practices, what is the correct 'lun-queue-depth' setting for a XtremIO array if the target port has four LUNs and the 'tgt-queue-depth' is 256?

A) 64
B) 256
C) 128
D) 32

2. Which RJ45 Ethernet interface should be used to initially configure an XtremIO storage controller?

A) RJ45 Ethernet interface 2
B) RJ45 Ethernet interface 1
C) RJ45 Ethernet interface 4
D) RJ45 Ethernet interface 3

3. XtremIO storage is assigned to a host. If the host has the HBA execution throttle set to 256, what effect will this have on the system?

A) Each LUN visible to the port will have a queue depth set to 256
B) Aggregate queue depth for all HBA ports will be set to 256
C) Each LUN visible to the port will have a queue depth set to 256 / <# HBA ports>
D) Queue depth for each HBA port will be set to 256

4. An XtremIO storage array reports an overall efficiency of 30:1. Which combination of Deduplication Ratio (DR), Compression Ratio (CR), and Thin Provisioning Saving (TPS) would achieve this efficiency?

A) DR = 5.0:1; CR = 2.0:1; TPS = 66%
B) DR = 2.5:1; CR = 4.0:1; TPS = 30%
C) DR = 3.0:1; CR = 2.0:1; TPS = 50%
D) DR = 4.0:1; CR = 2.5:1; TPS = 70%

5. How many disk failures will XtremIO Data Protection (XDP) allow in a DAE?

A) Two simultaneous disk failures; the system shuts down if a third occurs
B) One disk failure; a second simultaneous failure causes data unavailability
C) One disk failure per private RAID Group; the system shuts down if a second occurs
D) Up to six sequential SSD failures; subsequent failures cause data loss

Solutions: