By default, the OnePacs Study Retriever will download DICOM instances into memory until it reaches a limit of 8 individual instances or any single instance greater than 1 MB of size.  Thus, the maximum number of instances that the study retriever will store in a single DICOM association is 8, by default, and may be less depending on the size of the instances.  On systems with a high-overhead for DICOM network communication, it may be desirable to increase the batch size to a larger value (e.g.  20 instances instead of 8). 

The following steps describe the process of modifying the storage batch size in the OnePacs Study Retriever:

1. Stop the OnePacs Study Retriever by right-clicking on the taskbar icon and selecting "Exit"
2. Open the file called poller.properties in C:\onepacs\poller\conf in a text editor.

3. On a new line, add the following property. 

   storeBatchSize=20

   The example above may be modified to use any batch size; 20 is an example.

4. Restart the OnePacs Study Retriever by double-clicking on the "Restart OnePacs Study Retriever" desktop icon.