Dell EMC D-XTR-DS-A-24 Dell XtremIO Design Achievement Exam Practice Test

Answer : A

When troubleshooting SAN performance problems, a key indicator of a physical issue is a high CRC (Cyclic Redundancy Check) error count. CRC errors are indicative of corrupt data packets during transmission, which often points to issues such as faulty cables, bad ports, or other physical problems in the network infrastructure. High CRC error counts can lead to retransmissions, reduced throughput, and overall degradation of SAN performance. Addressing the physical components associated with high CRC error counts is essential for restoring optimal SAN operations.

While the specific Dell XtremIO Design document was not available, general SAN troubleshooting guidelines and best practices indicate that CRC errors are a critical metric to monitor for physical connectivity issues1.

Additional resources on SAN performance troubleshooting can be found in the support documentation for the XtremIO Family on Dell's official website2.

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Answer : A

For a service provider that offers storage and infrastructure hosting and wishes to manage storage, compute, and network elements using a single interface, OpenStack is a suitable software solution. OpenStack is an open-source platform that provides a comprehensive set of software tools for building and managing cloud computing platforms for public and private clouds. OpenStack is designed to control large pools of compute, storage, and networking resources throughout a datacenter, all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface1.

OpenStack is widely recognized for its ability to manage multiple aspects of cloud environments, including storage, compute, and networking, which aligns with the service provider's requirements1.

The Dell XtremIO Design documents would include information on compatible software solutions for managing various elements of the infrastructure, and OpenStack is commonly recommended for such purposes2.

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Answer : B

In a Dell XtremIO X2-R system, a four X-Brick cluster configuration includes two InfiniBand Switches1. Each InfiniBand Switch in a multi X-Brick system, such as the X2-R, is included to interconnect the X-Bricks within the cluster. While the specific number of ports is not directly stated in the search results, the configuration implies a high number of ports to support the connectivity between multiple X-Bricks. Based on the available information and typical configurations of such systems, it is reasonable to infer that each InfiniBand Switch would have 36 ports to provide the necessary interconnectivity for a four X-Brick cluster.

The XtremIO X2 Specifications document provides details on system configurations and components, including InfiniBand Switches1.

Additional information on InfiniBand Switches and their role in multi X-Brick systems can be found in the XtremIO X2 Specification Sheet2.

Answer : B

To stay updated with the most recent changes, features, and limits for XtremIO, an administrator should consult the XtremIO Release Notes. These documents are specifically designed to provide users with information about the latest updates, including new features, enhancements, fixed issues, and known limitations that are relevant to the XtremIO storage array systems.

The Release Notes are typically the go-to resource for any updates and changes in the product. They are part of the standard documentation provided by Dell for their products1.

For detailed information on the features and design of XtremIO, the ''Dell XtremIO Design Achievement'' document provides insights into the product features, functionality, use cases, and configurations2.

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Answer : A

To accommodate a workload that generates 500,000 IOPS with a maximum bandwidth of 14 GB/s, the recommended XtremIO X2 solution would be 4 X-Bricks. This recommendation is based on the specifications that a fully populated X-Brick module with 72 flash drives supports 220,000 IOPS1. Therefore, to support 500,000 IOPS, more than two X-Bricks are required. Additionally, the bandwidth requirement of 14 GB/s must be considered, and typically, more X-Bricks can provide higher bandwidth capabilities.

Dell EMC Ready Solutions for Oracle with XtremIO X2 document2.

Reference Architecture Guide---Ready Solutions for Microsoft SQL: Design for Dell EMC XtremIO1.

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Answer : D

Answer : D

XtremIO X2 supports configurations starting from a single X-Brick and scaling up to multiple X-Bricks. However, the X2 system can support up to 8 X-Bricks in a cluster, not just 4, so option D is more correct.