About the LUN I/O report
The LUN I/O report summarizes the standard I/O data traffic read from and written to the selected LUN for the specified period of time. You view the LUN I/O report under Reports > Branch Services: LUN I/O. Time Interval, LUN Report, LUN, and Appliance options are available to customize the report.
For information about navigating and customizing reports, see
About navigating and customizing reports.The LUN I/O report contains these statistics that summarize the activity:
Total Bytes Read
Displays the total number of bytes read over the WAN.
Average Read Throughput
Displays the average read throughput.
Total Bytes Written
Displays the total number of bytes written over the WAN.
Average Write Throughput
Displays the average write throughput.
Average Read IOPS
Displays the average read IOPS.
Average Write IOPS
Displays the average write IOPS.
Average Read Latency
Displays the average read latency.
Average Write Latency
Displays the average write latency.
The LUN I/O report answers these questions:
• How many megabytes have been written to and read from the selected LUN for the specified period?
• How many operations have been written to and read from the selected LUN for the specified period?
• What are the average read and write latencies for the selected LUN for the specified period?
• How many read hits and misses, in megabytes, were recorded for the selected LUN for the specified period?
• How many uncommitted bytes were recorded for the selected LUN for the specified period?