Dell EMC D-MSS-DS-23 Dell Midrange Storage Solutions Design 2023 Exam Practice Test

Answer : A

In a PowerStore system, multiplying the VM count by the Capacity per VM gives the Usable Capacity. Usable Capacity represents the actual storage capacity available for use by the virtual machines, taking into account any overheads, data protection mechanisms, and efficiency features such as deduplication and compression. Reference: Dell PowerStore Capacity Planning Guide

Answer : C

When designing a Dell Unity XT 480 using the System Designer option of Sizer, the recommended minimum amount of Flash to specify is 15%. This ensures that there is sufficient flash capacity to handle performance-intensive workloads and provides a good balance between performance and cost. Flash storage is crucial for achieving high IOPS and low latency in the storage system. Reference: Dell Unity XT Sizing Guide

Answer : C

During the 'Create a file import session' in a PowerStore file import, options for import are specified. This step involves configuring various settings and parameters for the import session, such as the source and destination details, data migration policies, and any specific options that need to be applied during the import process. This ensures a smooth and controlled data migration. Reference: Dell PowerStore File Import Guide

Answer : D

Skew refers to the non-uniform distribution of I/O over storage capacity. In storage systems, skew is an important factor to consider as it indicates that certain areas of the storage receive more I/O operations than others. This can lead to performance hotspots and affect the overall efficiency of the storage system. Managing skew is essential to ensure balanced performance across the storage array. Reference: Dell Midrange Storage Performance Guide

Answer : B

The maximum number of thin clones per base LUN within Dell Unity XT is 32. Thin clones are efficient copies of a LUN (Logical Unit Number) that share the same underlying storage blocks, allowing for quick and space-saving creation of additional LUNs based on the same data. Reference: Dell Unity XT Thin Cloning Guide

Answer : A

When sizing a Dell Unity XT solution using the Simple Performance method, parameters such as Read size (KB) and Target IOPS can be defined. The Simple Performance method focuses on understanding the expected IOPS (Input/Output Operations Per Second) and read size to ensure that the system is sized appropriately to meet performance requirements. This approach helps in configuring the storage system to handle the expected workload efficiently.

Answer : C

In a scenario where a customer needs to design a DR site with a 15-minute RPO using storage-based asynchronous replication, creating a single protection policy assigned to 30 volumes with a five-minute shift between each volume is the most stable design. This approach ensures that the replication load is evenly distributed over time, minimizing the impact on storage performance.

Dell PowerStore Asynchronous Replication Best Practices.

Dell Technologies documentation on protection policies and replication strategies.