Installation and Upgrade > Installing and Configuring PTC FlexPLM > Modifying Configuration Files for Development, Testing, and Production > Configuring the Location to Save Thumbnails
  
Configuring the Location to Save Thumbnails
By default, PTC FlexPLM saves all thumbnails to the <Windchill>/codebase/images directory. If you want to save thumbnails to a vaulted location or another type of storage area network (SAN) location, then perform the configuration steps for Unix or Windows.
There are two main reasons this type of configuration is used:
To help prevent data loss if the app server has a catastrophic failure
To provide a shared location for all servers to use the same images directory when running PTC FlexPLM in a cluster environment