On a PowerProtect DD appliance, which of the following does the system show performance command display?

The system show performance command on a PowerProtect DD appliance provides a high-level, real-time overview of key system performance statistics. The output typically includes metrics such as overall system CPU utilization (busy percentage), and total network throughput (kilobytes per second, in and out). This command is used for a quick assessment of the system's current workload and health, summarizing multiple performance aspects into a single view.

B. Cleaning performance has its own specific commands, such as filesys clean show status, not the general system performance command.
C. Disk-specific I/O details are typically displayed using more granular commands like disk show performance or iostat.
D. While CPU/Memory details are part of the output, the command also shows network statistics, making this option an incomplete description.

1. Dell PowerProtect DD Series Command Reference Guide, 7.10, Page 860, "system show performance" section. The command description states it is used to "Display system performance statistics." The sample output shows columns for CPU Busy, Net In, and Net Out.

2. Dell PowerProtect DD OS 7.10 Administration Guide, Page 215, "Monitoring system performance" section mentions using system show performance to view "CPU utilization and network traffic."