# Monitor Disk Usage

The Disk Report tab displays information about the disk usage of directories and files in the working directory for each component. The `DiskReport` action returns this information. For information about this action, see the IDOL Server Reference.

The Disk Report tab displays the following information. Click Refresh to update the information at any time.

Component | A top-level directory in the working directory.
Data Type | The type of IDOL data that is stored, for example logs or index files.
Size | The amount of memory used by the component.
Children | The number of directories or files below the component.

You can click on the number of children for a component to display disk usage information about the children. A breadcrumb trail at the top of the page shows your location within the file structure, and enables you to move between the levels in the structure.

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