Acer Altos RAIDWatch, Manual

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Operation
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4.9 The Statistics Window
The Statistics window includes separate displays for cache hits and for sustained read/write
performance.
4.9.1 Accessing the Statistics Window
To open the Statistics window display either select the Statistics icon from the navigation toolbar
shown in Figure 4–9 or select the Statistics command from the Open Menu shown in Figure 4–10.
4.9.2 Using the Statistics Window
When selecting the Statistics window command in the Menu or the toolbar, a user can select either
“Cache Hits” or “Disk R/W.”
4.9.2.1 Cache Hits
If you select Cache Hits, a window similar to the one shown in Figure 4–30 will appear.
• Cache hits Average and history provides information about the current operating performance
of the RAID controller and disk array.
Figure 4–30 Cache Hits Performance Statistics window
• Cache Hits Average is a measure of data read or write cache accesses at the most recent
moment of sampling. It indicates what percentage of data I/O is cache accessed.
• Cache Hits History shows cache read and write hit data over the last few minutes and indicates
data caching consistency and frequency.
4.9.2.2 Disk R/W
If you select Disk R/W, a window similar to the one shown in Figure 4–31 will appear.