HP 3PAR StoreServ 7200 2-node HP 3PAR System Reporter 3.1.0 Software User& - Page 93
Chart Types, Stacked Bars, Stacked Vert Bars andStacked Area, Vert Bars, Lines
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providing you are using a browser that supports html5 canvas tags (the latest versions of Windows IE9, Firefox, and Google Chrome browsers currently offer this support). Chart Types Stacked charts stack data on top of each other so you can also see totals. However, since the total height of the stacked charts (with Stacked Bars, Stacked Vert Bars andStacked Area charts) is the sum of the individual segments, they are not suitable for some forms of data. For example, in performance charts, the average service time for I/O is not the sum of the average service time for reads plus the average service time for writes. Similarly, the average I/O size for I/O is not the sum of the average I/O sizes of reads plus the average I/O size of writes. Therefore, when you select stacked charts, only the total service time and total I/O sizes are shown. If you want to see the service time and I/O sizes for reads and writes separately, select Bars, Vert Bars. orLines from the ChartType list. Creating Custom Reports 93