HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

Read/Write Ratio report
The Read/Write Ratio report displays in a chart format, the ratio of read activity to write activity, over
the entire period. It is for both sequential and random read, or write activity. “Read/Write
Ratio” on page 415 displays a sample Read/Write Ratio report for the XP1024 Disk Array.
Figure 38 Read/Write Ratio
.
For example, the data point of X on the graph indicates X% read activity and (100-X)% of write
activity.
NOTE:
If there are no data points available for the dates selected, blank chart is displayed. If all the data
values are zero for the dates selected, a chart with a horizontal line along X axis is displayed in the
center of the chart.
Read/Write Ratio by hour of day report
The Read/Write Ratio by hour of day report displays in a chart format, the ratio of read activity to
write activity, over a 24 hour period. It is for both sequential and random read, or write activity.
“Read/Write Ratio by hour of day” on page 416 displays a sample Read/Write Ratio by hour of day
report for the XP1024 Disk Array.
HP StorageWorks P9000 Performance Advisor Software User Guide 415