E20-526 Online Practice Questions and Answers
A user attempts to create a quorum disk for a host cluster. Volume parameters are: Size = 1000 kB Name 1MB_Vol
However, the volume creation fails. What caused the process to fail?
A. Quorum disks cannot have an 8kB block size
B. Volume size is too small
C. Volume name is invalid
D. XtremIO volumes cannot be quorum disks
An XtremIO administrator is having a problem with performance and is troubleshooting the issue. What is an accurate statement about I/O transfers?
A. As I/O size increases, IOPs increase, and latency increases
B. As I/O size increases, IOPs decrease, and bandwidth increases
C. As I/O size decreases, IOPs increase, and bandwidth increases
D. As I/O size decreases, IOPs decrease, and latency increases
Which level of granularity does XtremIO deduplication run?
A. Variable 8 kB
B. Variable 32 kB
C. Fixed 8 kB
D. Fixed 32 kB
A storage administrator wants to add a volume to their XtremIO storage array using the RESTful API. Which RESTful method should be used to complete this task?
A. HTTP POST
B. HTTP PATCH
C. HTTP LINK D. HTTP PUT
Refer to the exhibit.
A customer has a VMware Horizon View environment with the following characteristics: One X-Brick XtremIO cluster 100% read during a boot storm 8K read/writes
What is the maximum recommended number of VDIs the XtremIO cluster can support during a boot storm?
A. 1625
B. 1833
C. 3250
D. 5094
A customer has a requirement to replicate their VDI to a newly purchased data center located 5 miles away. They require 10-day retention at each site and a continuous replication RPO. However, they want to have the same storage platform at each site. They have a limited budget but need to meet their requirements.
Which solution should be recommended to the customer?
A. XtremIO and OpenStack
B. XtremIO with VPLEX and RecoverPoint
C. XtremIO and RecoverPoint
D. XtremIO and MirrorView/A replication
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
A customer is considering a six brick dispersed cluster using 3?0U racks. The customer wants advice on racking the InfiniBand switches. Rack 1 (left) contains X-Bricks 1 and 2 Rack 2 (middle) contains X-Bricks 3 and 4 Rack 3 (right) contains X-Bricks 5 and 6
Which recommendation should be provided?
A. Install the InfiniBand switches in Rack 1 with a 1U placeholder between the switches.
B. Install an InfiniBand switch in Racks 1 and 3 with a 1U placeholder between the X-Bricks.
C. Install the InfiniBand switches in Rack 2 with a 1U placeholder between the switches.
D. Install the InfiniBand switches in Rack 3 with a 2U placeholder between the switches
Which actions are initiated when a snapshot is created on an XtremIO array?
A. Parent object becomes read only and two auxiliary volumes are created
B. Parent object remains writeable and one auxiliary volume is created
C. Parent object remains writeable and two auxiliary volumes are created
D. Parent object becomes read only and one auxiliary volume is created
Who developed the framework for testing All-Flash arrays that is used in the XtremIO PoC?
A. EMC
B. Seagate
C. Micron
D. IDC
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
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
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
A customer has a group of applications that need storage which can provide low response times. The total I/O requirements are 75,000 IOPs with a 4 kB block size. They will have 500 LUNs and need to keep 30 daily snapshots of each LUN.
What is the smallest XtremIO configuration that will meet their needs?
A. 1 cluster with 2 X-Bricks
B. 1 cluster with 4 X-Bricks
C. 2 clusters with 1 X-Brick each
D. 2 clusters with 2 X-Bricks each
A customer has decided to use VMware Horizon View as their desktop virtualization technology. Their VDI environment will consist of XtremIO storage and ESXi hosts. They are looking for increased speed and low latencies while performing file copy operations.
What should the setting for VAAI XCOPY I/O size be set to in order to achieve this requirement?
A. 8 kB
B. 63 kB
C. 256 kB
D. 4 MB
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