To optimize a mosaic dataset or determine why it isn't behaving as you expect, you can analyze it using the Analyze Mosaic Dataset tool. This tool checks a mosaic dataset for commonly known anomalies and reports them as errors and warnings along with suggestions to resolve problems and optimize performance.
Individual items are checked for invalid parameters or incorrectly constructed function chains. The tool also performs visibility analysis on the mosaic dataset, checks validity of overviews, and provides information to improve service performance. Once the analysis is complete, the results are displayed in a tabular form.
The results are categorized into the following:
- Error/High—Indicates an issue that may adversely affect the basic desktop roaming or publishing with the mosaic dataset. Examples include invalid visibility or cannot open the raster dataset.
- Error/Medium—Indicates an issue that directly affects the authoring experience. Geoprocessing tools in the mosaic dataset toolset may fail due of this issue. Examples include an empty mosaic or invalid raster type ID.
- Error/Low—Indicates an issue that may affect some aspects related to the mosaic dataset (or any derived image service). Examples include an invalid center x,y or broken paths.
- Warning/High—Indicates an issue related to performance or optimum display. Examples include missing overviews and missing statistics.
- Warning/Low—Indicates a low impact issue typically attached to a recommendation to ensure smooth and efficient operation. Examples include invalid metadata, low JPEG quality, or too many uncompressed pixels in the mosaic dataset, as well as missing raster pyramids.
- Message/Low—Only messages that report statistical facts related to the mosaic dataset appear in this category.
Access the Analyze Mosaic Dataset tool
You can access the Analyze Mosaic Dataset tool in the following ways:
- In the Geoprocessing pane, search for Analyze Mosaic Dataset.
- In the Contents pane, right-click the layer and click Data > Analyze Mosaic Dataset.
- In the Catalog pane, right-click the dataset and click Analyze Mosaic Dataset.
You can analyze the following types of problems:
| Check performed | Description |
|---|---|
Footprint geometry | Analyze the footprint geometry of each selected mosaic dataset item. This is turned on by default. |
Function Chains | Analyze the function chains for each selected mosaic dataset item. |
Raster | Analyze the original raster datasets. This is turned on by default. |
Broken paths | Overviews are stale when the underlying source data has changed. |
Source validity | Overviews are stale when the underlying source data has changed. |
Stale overviews | Overviews are stale when the underlying source data has changed. |
Pyramids | Analyze the raster pyramids associated with each mosaic dataset item in the selected mosaic dataset. Test for disconnected auxiliary files, which can occur when they are stored in a raster proxy location. |
Statistics | Test for disconnected auxiliary statistics files if they are stored in the raster proxy location. Analyze the covariance matrix associated with the raster when the Gram-Schmidt pan-sharpening method is enabled. Analyze the radiometric pixel depth of a mosaic dataset item using the pixel depth of the mosaic dataset. |
Performance | Factors that increase performance include compression during transmission and caching items with many raster functions. |
Information | Generate an information log for the analysis. |