E20-526 Online Practice Questions and Answers
How can REST API commands be run to manage and monitor an XtremIO cluster?
A. From the REST API CLI built into each X-Brick
B. From the REST API GUI built into each X-Brick
C. From a third-party GUI
D. From the REST API tab in the XMS GUI
A customer has purchased a two X-Brick XtremIO array with a physical XtremIO Management Server (XMS). The customer plans to use all Fibre Channel connectivity in the environment.
What are the physical connectivity requirements for the cluster?
A. 1 Copper Ethernet connection, 4 Fibre Channel Optical connections
B. 3 Copper Ethernet connections, 8 Fibre Channel Optical connections
C. 4 Copper Ethernet connections, 16 Fibre Channel Optical connections
D. 5 Copper Ethernet connections, 8 Fibre Channel Optical connections
A customer has a VMware vSphere environment running Native Multipathing (NMP). Which path selection policy should be set for optimal performance when connected to an XtremIO cluster?
A. Fixed AP
B. Most Recently Used
C. Fixed
D. Round Robin
Based on XtremIO best practice, which byte sector size should be used for volumes hosting Oracle database files?
A. 256
B. 512
C. 1024
D. 4096
When using a 10 TB single X-Brick, what is the minimum amount of data that should be written during the Fill phase of the PoC Toolkit?
A. 10 TB
B. 15 TB
C. 20 TB D. 30 TB
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
A customer's storage administration team wants to receive e-mail notifications when the XtremIO cluster detects an issue of major seventy. The customer has successfully configured and tested the e-mail server in the XtremIO GUI. However, the e-mail server is not receiving the expected notifications when major severity issues appear.
What is the cause of this issue?
A. Alert definitions have not been defined
B. Event handlers have not been defined
C. Public reports have not been defined
D. Private reports have not been defined
Refer to the Exhibit.
A customer has the following XtremIO environment: Read/write ratio is 3:1 I/O size is 8K Write pattern is random Data is compressible
If an application generates 100,000 IOPS of traffic, how many RPAs are needed to replicate the traffic from one XtremIO array to another XtremIO array over IP?
A. 1
B. 2
C. 3
D. 4
Which part of the XtremIO architecture do host ports use to access an XtremIO volume?
A. FA
B. Initiator
C. Target
D. Zone
As shown in the exhibit, a customer's environment is configured as follows: Dual X-Brick cluster 8 ESXi hosts with 2 HBAs Each ESXi hosts has 8 LUNs Each LUN is visible through 4 paths
What should be the host queue depth setting per path?
A. 64
B. 128
C. 256
D. 1024
A customer has recently deployed an XtremIO 20 TB two X-Brick cluster to run an existing instance of Oracle RAC previously leveraging VNX for back-end storage. The application environment uses a block size of 1 MB. Multiple tables are in use with the PARALLEL_DEGREE_POLICY variable set to AUTO.
The customer wants your help with tuning the DB_FILE_MULTIBLOCK_READ_COUNT parameter for best performance with XtremIO. Which values should be recommended for tuning the DB_FILE_MULTIBLOCK_READ_COUNT parameter in the Oracle RAC environment?
A. 8 or 16
B. 24 or 32
C. 64 or 128
D. 256 or 512
You need to design an Oracle solution for a customer. Which XtremIO best practices should be used in Oracle environments?
A. Use a 512 byte LUN sector size for databases. Use Eager Zeroed Thick formatting for ESXi
B. Use a 4 kB LUN sector size for databases. Use Lazy Zeroed Thick formatting for ESXi
C. Align data on 4 kB boundaries. Use Thin formatting on ESXi
D. Align data on 4 kB boundaries. Use Lazy Zeroed Thick formatting on ESXi
A storage administrator wants to re-use some of their XtremIO thin provisioned disks attached to a Microsoft Windows 2012 host. However, the administrator notices that "Quick Format" of the drives is taking a long time to complete. This has an impact on the overall performance.
What should be recommended to minimize the performance impact?
A. Disable the I/O elevator feature on the Windows host while formatting
B. Temporarily disable the UNMAP feature on the Windows host during formatting
C. Adjust the execution throttle value on the Windows host
D. Change the disk format to thick provisioned
A customer wants to use the Cinder driver to manage XtremIO storage in an OpenStack environment. What is a potential concern?
A. Compression is not supported
B. Deduplication is not supported
C. Snapshots of snapshots are not supported
D. Volume expansion cannot be reversed
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
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