D-MSS-DS-23 EMC Exam Lab Questions

To provide the best performance on Dell Unity iSCSI connections, configuring Jumbo frames end-to-end is recommended. Jumbo frames allow for larger packet sizes than the standard 1500 bytes, typically up to 9000 bytes. This reduces the number of packets transmitted, decreases CPU utilization, and improves overall network efficiency. Here’s how to configure Jumbo frames:

Switch Configuration:Enable Jumbo frames on all network switches that will handle iSCSI traffic.

Network Interface Configuration:Configure all network interfaces (NICs) on the storage system and the iSCSI hosts to support Jumbo frames.

End-to-End Consistency:Ensure that Jumbo frames are configured consistently across the entire network path from the storage system to the hosts to avoid fragmentation and performance degradation.

References:

Dell Technologies Unity iSCSI Best Practices

Dell Entry-Level and Mid-Range Storage Community

=================

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

=================