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Dell EMC E20-526 Exam
- Topic 1: Position an XtremIO X2 solution to meet the customer's requirements/ Identify and describe XtremIO X2 hardware and software components
- Topic 2: Design an XtremIO X2 solution for database environments/ Describe architectural differences between XtremIO and X2
- Topic 3: Identify the data analysis tools and how they are used to analyze the data/ Host Configurations in XtremIO and X2 Environments
- Topic 4: Design an XtremIO X2 solution for VDI environments/ XtremIO and X2 Operations and Management
- Topic 5: Explain the benefits of post-processing operations/ Manage XtremIO X2 with the GUI and with the CLI
- Topic 6: Describe the unique configuration associated with the ESXi operating system/ Describe the XtremIO X2 Management Server
- Topic 7: Identify and describe the data gathering tools and practices/ Describe common host configurations; such as HBAs, multipathing
- Topic 8: Performance overview, XtremIO X2 architecture/ Describe multi-cluster XtremIO X2 management
- Topic 9: Describe the XtremIOX2 features such as deduplication/ Describe the operation and management of XtremIO X2 snapshots
- Topic 10: Identify and capture the customer requirements and document the environment/ Describe the benefits of All-Flash arrays and XtremIO
Free Dell EMC E20-526 Exam Actual Questions
The questions for E20-526 were last updated On May. 28, 2023
What are common storage array mechanisms?
XtremIO's snapshot technology is implemented by leveraging the content-aware capabilities of the system (Inline Data Reduction), optimized for SSD media, with a unique metadata tree structure.
XtremIO leverages a proprietary flash-optimized data protection algorithm (XtremIO Data Protection or XDP), which provides performance that is superior to any existing RAID algorithm.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 33
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?
It is related to TRIM/UNMAP, which is enabled per default in Server 2012(R2).
References:https://serverfault.com/questions/679211/quick-format-of-lun-in-server-2012r2-hosted-on-a-thin-provisioned-san-vol-take
A customer wants to use the Cinder driver to manage XtremIO storage in an OpenStack environment. What is a potential concern?
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?
With VMware ESX 5.5, the VMware hypervisor cannot work with LUNs that use a logical block size of 4K. When using VMware, be sure to specify Normal (512 LBs) from your XtremIO array.
References:https://gruffdba.wordpress.com/2015/08/02/4k-logical-block-size-size-fails-on-vmware/
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?
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