Isilon: Grey slices in File System Analytics Pie Chart
Summary: This KB article explains why an unlabeled gray slice may sometimes be seen in the File System Analytical reports pie chart.
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Instructions
When running a File System Analytics report, you might see a gray slice in the pie chart like this:
The Pie Chart is a visual aid showing the size of the directories in the list to the right, relative to each other.
In the above example, the largest directory is roughly 3 GB in size. The next largest directory is a mere 2.8 MB.
The gray slice appears when there are directories that are too small for which to draw individual slices.
Remember, the size of the slice is relative to the amount of space it consumes within the directory when compared to the other directories.
In the above example, the largest directory accounts for over 90% of the space consumed. The next largest directory would be less than 0.1%, and as a result, is too small to draw.
An attempt at drawing the slice would require your monitor to paint the same pixels multiple colors.
Every directory that is too small to draw is combined together into the gray slice. Because the above example has 342 directories, only the largest directory is large enough to draw so we end up with a large gray slice. In the next example, the gray slice is smaller, but if you look closely, it is still there:
Affected Products
Isilon InsightIQProducts
Isilon InsightIQArticle Properties
Article Number: 000009879
Article Type: How To
Last Modified: 14 Oct 2025
Version: 6
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