Berkeley DB is a family of embedded key-value database libraries providing scalable high-performance data management services to applications. The Berkeley DB products use simple function-call APIs for data access and management.
Objects have a set of files that comprise that object, as seen in the Files tab.
When an object is built, they have a set of files that are the result of that
build. In each case, these sets of files are the ones that are accessible within
a virtual machine when running the object.
This section describes how those files are accessible and visible to that machine.
When a virtual machine is created, the data is always accessible read-only within
a particular mounted directory. However, applications may expect to be located at
particular directories. This section allows one to place files in different
directories when the virtual machine is launched.
There are two types of access. One is a link where the file is not copied from
its original location. Instead, it creates what is called a symbolic link which
is a "shortcut" that acts like a normal file but allows the actual data to be in a
different directory. The other type is a traditional copy which copies the data
explicitly to the provided destination. This takes more time, but the copy can be
modified, unlike the read-only link type.