DST policies control how data flows between the primary storage area and the secondary storage.
You can create a DST policy that moves files to the secondary volume that have not been modified or accessed for a period of time, such as 6 months or 1 year.
You can create a DST policy that moves files to the secondary volume that have are greater than or less than a specified file size.
By default, files in the secondary area are moved back to the primary area if they are modified. You should disable the SHIFT_MODIFIED_SHADOW_FILES parameter to turn off this auto-move feature. The SHIFT_ACCESSED_SHADOW_FILES parameter is disabled by default so that files are not moved when accessed. These settings are global settings that apply to all shadow volumes on a given server. In this way, the desired file types stay in the secondary area after they are moved there.
You can create a DST policy that moves non-essential types of files based on file extensions, such as *.jpg, *.mp3, *.wma, *.mpeg, *.iso, *.zip, *.cab, and so on.
By default, files in the secondary area are moved back to the primary area if they are modified. You should disable the SHIFT_MODIFIED_SHADOW_FILES parameter to turn off this auto-move feature. The SHIFT_ACCESSED_SHADOW_FILES parameter is disabled by default so that files are not moved when accessed. These settings are global settings that apply to all shadow volumes on a given server. In this way, the desired file types stay in the secondary area after they are moved there.
You can use the Shadow Volume Inventory page in Novell Remote Manager for Linux to view statistics on files and usage for the DST shadow volume. At the bottom of the page, use the form to move selected files between the two volumes. This one-time move is not policy based.