The Knowledge Vault Master can be moved by relocating the corresponding mdf and LDF files from their existing location to another location on the same computer.
The user under which the SQL service is running must have Full Control to the location to which the database is being moved.
Move the Master Vault
Launch the Autodesk Data Management Server console.
Select Tools >Move Master Vault.
On the Move Database Files dialog browse to the new location for the Data file (mdf) and Log file (LDF).
Click OK on the browse dialog.
Click OK on the Move Database Files dialog.
Click Yes on the prompt to proceed with the Move operation.
It is not necessary that both the Knowledge Vault Master mdf and LDF files be in the same location.