Apply Dell Midrange Best Practice Recommendations for Networking Performance (switch Configuration, Front-End Connectivity). MIDRANGE-STORAGE-SOLUTIONS-DESIGN Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A healthcare provider is deploying a Dell Unity XT array for its patient records system. The network team has configured the switches with jumbo frames and disabled flow control. However, they are experiencing packet loss during peak hours. The switches are connected in a stacked configuration. What is the most likely cause of the packet loss, and what Dell best practice should be applied?

   • AFlow control is disabled, causing drops; re-enable flow control to prevent packet loss.
   • BThe jumbo frames are too large for the stack; reduce the MTU to 1500 on the stack ports.
   • CThe stacked switch interconnect is oversubscribed; use a non-blocking switch fabric or connect the array to both switches in the stack.
   • DThe spanning-tree protocol is blocking ports; enable PortFast on all storage ports.
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2. 7expert · hard

   A government agency is deploying a Dell Unity XT array for a critical application. The network team has configured the switches with jumbo frames and disabled flow control. However, they are seeing high CPU utilization on the storage array's front-end controllers. The workload is a mix of large block (1MB) and small block (4KB) I/O. What is the most likely cause of the high CPU utilization, and what Dell best practice should be applied?

   • AThe small block I/O is generating a high packet rate; consider using a dedicated VLAN for storage traffic to reduce broadcast overhead.
   • BThe flow control being disabled is causing packet drops; re-enable flow control to reduce retransmissions.
   • CThe jumbo frames are causing fragmentation for the small block I/O; disable jumbo frames for the storage VLAN.
   • DThe high packet rate from small block I/O is consuming CPU; enable interrupt coalescing on the front-end NICs.
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4. 8foundation · easy

   To enhance throughput on a Dell midrange storage network, which configuration should be implemented?

   • ASet all ports to half-duplex to avoid collisions
   • BUse a single path with the highest speed available
   • CDisable jumbo frames to reduce packet size
   • DUse multiple paths between hosts and storage with load balancing
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5. 9foundation · easy

   Which networking configuration is most likely to reduce latency for Dell midrange storage traffic?

   • ADisabling flow control on all storage ports
   • BUsing a single switch for all storage traffic
   • CIncreasing the number of VLANs on the storage network
   • DEnabling jumbo frames on the storage VLAN
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6. 10application · medium

   A retail company is deploying a Dell PowerStore array for its online transaction processing (OLTP) workload. The storage administrator is connecting the array's 25GbE front-end ports to two switches. The team wants to maximize throughput for the iSCSI traffic. They have already enabled jumbo frames and disabled flow control. What additional Dell best practice should they implement to maximize throughput?

   • AUse a single iSCSI session per host to reduce complexity.
   • BConfigure the switch ports as access ports and assign them to the default VLAN.
   • CConfigure multiple iSCSI sessions from each host to the array and enable multipathing.
   • DEnable flow control to ensure no packets are dropped during high throughput.
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