- Disconnect all users from the cube

- Open Analysis Manager

- Right-click on server name

- Open Properties and you will be able to see Data folder on General tab (typically c:\Program Files\Microsoft Analysis Services\Data)

- Copy all files and sub-folders of Data folder to new location (using Command Prompt or Windows Explorer)

- Go back to Analysis Manager and set path of Data folder to new location

- Restart Analysis Services

- Test new setup by querying OLAP databases/cubes

- If everything is OK, delete original Data folde