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E20-526 XtremIO Solutions and Design Specialist Exam for Technology Architects Question and Answers

Question # 4

A customer is considering migrating their existing non-EMC storage arrays to an XtremIO array. The current environment consists of 350 servers running VMware ESXi 5.5 with 5000 virtual machines. The customer has various tools in place to monitor performance and collect statistics. On average, their service time is 32 ms and utilization is at 75%. In the past, the customer has had performance issues.

Based on Little’s Law, what is the calculated response time on the existing environment?

A.

128 ms

B.

192 ms

C.

256 ms

D.

332 ms

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Question # 5

When creating XtremIO volumes for a host, which operating systems will benefit by changing the default logical block size for applications consisting of 4 KB I/Os?

A.

Microsoft Windows and RHEL

B.

VMware ESX and Microsoft Windows

C.

RHEL and IBM AIX

D.

Sun Solaris and HP-UX

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Question # 6

Which level of granularity does XtremIO deduplication run?

A.

Variable 8 kB

B.

Variable 32 kB

C.

Fixed 8 kB

D.

Fixed 32 kB

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Question # 7

A customer has a workload with the following attributes:

  • Generates 250,000 IOPs
  • 100 TB in logical capacity
  • Read/Write ratio of 1:1
  • Random workload with 8 kB I/O size
  • Deduplication ratio of 2:1
  • Compression ratio of 2:1

Which XtremIO solution should be recommended to the customer?

A.

1×40 TB X-Brick

B.

2×10 TB X-Brick

C.

3×20 TB X-Brick

D.

4×10 TB X-Brick

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Question # 8

A physical XtremIO Management Server (XMS) has failed and requires replacement. Which two software packages are required for recovery?

A.

XMS image and OVA image

B.

Xtremapp and OVA image

C.

XMS image and Xtremapp

D.

Xtremapp and MPIO

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Question # 9

A storage administrator has 20 TB of storage provisioned to their ESXi cluster from a 10 TB XtremIO storage array. The administrator is concerned about running out of physical capacity on the XtremIO.

Which recommendation will assist the administrator?

A.

Enable VAAI TPSTUN

B.

Increase the compression ratio on the XtremIO

C.

Disable VAAI XCOPY

D.

Thick provisioned eager zero all VM virtual disks

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Question # 10

A Linux administrator is attaching a new RHEL server to their XtremIO storage array. Which configuration setting should be changed?

A.

Enable Logical Volume Manager

B.

Modify the file system block size

C.

Disable HBA Queue Depth

D.

Disable I/O elevators

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