Read/write ratio report, Total i/o rate detail – HP XP Performance Advisor Software User Manual

Page 133

Figure 59 Total I/O Rate Detail

Sequential I/Os are when data is read from or written to consecutive addresses. Random I/Os are when

applications address non-consecutive blocks of data. CFWs are a special class of I/Os generated by

HP’s Continuous Access remote mirroring software.

NOTE:

If there are no data points available for the dates selected, blank chart will be displayed. If all the data

values are zero for the dates selected, a chart with a horizontal line along X axis will be displayed in

the center.

Read/Write Ratio report

The Read/Write Ratio report shows in a chart format, the ratio of read activity to write activity, over the

entire data collection period. This is for both sequential and random read/write activity.

shows a sample Read/Write Ratio report for XP1024.

HP StorageWorks Performance Advisor XP Software user guide

133