# Smart Scan
The **SmartScan** feature is designed to efficiently refresh data for specific directories or files without reprocessing the entire dataset. Instead of performing a complete refresh, which can be time-consuming and resource-intensive, SmartScan focuses only on the designated directories or files to check for any updates or modifications.
This targeted refresh approach ensures that only the relevant data is updated, significantly reducing processing time and resource usage. By refreshing only the necessary portions of data, SmartScan helps maintain data accuracy while optimizing system performance and minimizing overhead.
This feature is particularly useful for environments where data changes occur periodically in specific locations, allowing for faster and more efficient data management.
#### ⚙️Steps to **Enable SmartScan**
To enable the **SmartScan** feature, simply select the **Smart Scan** checkbox while creating a new dataset. Once enabled, three additional configuration fields will appear that allow you to define how SmartScan operates.
**Configuration Fields**
1. **Template** - Specify the **path template** of the directory or file that you want SmartScan to monitor and refresh. This determines the target location where SmartScan will look for updates or changes.
2. **Backfill Hours -** Specifies how far back SmartScan should scan for updates. The default value is **48 hours**. For example, setting it to 72 hours will scan for changes made within the last 72 hours.
3. **Incremental Minutes -** Specifies the **frequency (in minutes)** at which SmartScan will run incrementally to detect and refresh new or updated data within the specified path.
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