DELL STORAGE Exam
D-XTR-DS-A-24 Questions V8.02
Dell Storage
Topics - Dell XtremIO Design
Achievement
1.Which Multipathing software is supported by ExtremIO?
A. PowerPatch/VE and NMP on ESXi Host
B. MPIO on non-clustered Microsoft Windows Hosts only
C. PowerPath/VE on Microsoft Windows VMs hosted by ESXi
D. Native MPIO on IBM AIX clusters
Answer: C
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2.A customer has a workload with the following attributes:
. Generates 500.000 IOPs
. Maximum Bandwindth of 14GB/s
Which XtremIO X2 solution should be recommended to the customer?
A. 1 X-Brick
B. 2 X-Brick
C. 3 X-Brick
D. 4 X-Brick
Answer: B
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3. A customer wants to connect their Storage Controller to Fiber Channel switches
using as many Fiber Channel port as possible.
Which port of each storage controller shown in the exhibit should be used?
A. 1 and 2
B. 1,2,3 and 4
C. 2 and 3
D. 3 and 4
Answer: A
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4. You are connecting a Linux host to an XtremIO array. The host will be connected to
the array using the Qlogic HBA’s.
Based on the recommended best practice, what is the value for the queue depth?
A. 128
B. 256
C. 1024
D. 8192
Answer: B
5. What should the Oracle Redo Log block size be set to in order to prevent log
entries from being misaligned by read-modify-write operators for an Oracle
Database?
A. 4 Kb
B. 8 Kb
C. 16 Kb
D. 24 Kb
Answer: C
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7. A customer’s environment is configured as follows
. Dual X-Brick cluster
. 8 ESXi hosts with 2 Emulex HBAs
. Each ESXi hosts has 8 LUNs
. Each LUN is visible through 4 paths
What should be the LUN queue depth setting per path?
A. 64
B. 128
C. 256
D. 1024
Answer: D
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6. Which I/O elevator setting should be selected for use with XtremIO?
A. Cfq
B. Deadline
C. Noop
D. Anticipatory
Answer: B
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8. What is an accurate statement about the XtremIO XVC refresh operations?
A. Unmount of a production volumn is not required
B. Only snapshot to production refresh is supported
C. O/S side device scan is not required
D. Refreshed volumn cannot be resized
Answer: A
9. What is the fingerprint bit size created by the algorithm used by XtremIO?
A. 160
B. 224
C. 256
D. 512
Answer: C
10. What is true about the flow control feature when configuring he iSCSI SAN from
the host to the XtremIO cluster?
A. Disable flow control features on the server, switch(s) and array ports
B. Enable flow control features on the server and array port only
C. Enable flow control features on the server, switch(s) and array ports
D. Disable flow control features on the server and array port only
Answer: C
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11. At which point is data compressed when a host sends data to the XtremIO
Storage system?
A. Inline before data is written to the SSD
B. Once data is written to the Storage Controller
C. After data is written to the SSDs
D. After data is in SSD cache
Answer: D
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12. A customer what you to design an XtremIO solution for an Oracle RAC application
environment. The customer maintains two data centers and requires replication to a
third site for disaster recovery purposes. The solution must be fault tolerant and
capable of remaining online during planed and unplanned downtime event due to
governmental regulations.
Which DellEMC technology should recommended to the customer to meet these
requirements?
A. RecoverPoint/SE
B. ProtectPoint
C. MetroPoint
D. VIPR
Answer: A
13. Which host operating system does the Live Optic Collector run on?
A. Windows and Linux
B. Windows, Linux, Solaris and HPUX
C. Windows, Linux, and Solaris
D. Windows, Linux, and KVM
Answer: B
14.What should the I/O size be set to in a VMware VDI Solution utilizing VAAI XCOPY
on XtremIO?
A. 16 kb
B. 256 kb
C. 4 MB
D. 256 MB
Answer: C
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15.Which disk format should be used for ESXi Disks Provisioned by XtremIO?
A. Zeroed Thick
B. Thin
C. Thick
D. Eager zeroed thick
Answer: C
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16.You have been requested to connect to the TECH port of a physical XtremIO X2
XMS Global Technical Support.
Which port should the service machine be connected to on the server?
A. USB-BOTTOM
B. MGMT ETH0
C. USB-TOP
D. USB-MIDDLE
Answer: D
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17.Which host OS supports both 512 bytes and 4 KB XtremIO logical block (LB)
volumns?
A. VMware
B. Linux
C. IBM AIX
D. HP-UX
Answer: C
18.What is the block size an XtremIO X2 uses to Optimize I/O handling internally?
A. 16 kB
B. 32 kB
C. 64 kB
D. 1024 kB
Answer: A
19.What is the recommended execution throttle setting for Windows, Linux, and
VMware for Qlogic Adapter?
A. 32
B. 1024
C. 16384
D. 65536
Answer: C
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20. You need to design a VDI solution for a customer.
Which best practices should be used for VDI environments?
A. Align data on 8 kB boundaries. Put the master VM image on an XtremIO LUN
B. Align data on 4 kB boundaries. Allocate multiple XtremIO LUNs to each host
C. Align data on 8 kB boundaries. Put all VDI-related data on one large LUN
D. Align data on 4 kB boundaries. Put persona and user data on XtremIO LUNs
Answer: C
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D-XTR-DS-A-24
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