MS says: SharePoint cannot be installed in a clustered environment.

Is there any way to provide resillence to corporate documents?? i.e. the
data that is stored inside workspace (e.g. categories, documents, profiles
etc...)

Do SharePoint support that all data inside a particular workspace can be
resided on another server/PC??

Another way around could be take backup on daily basis, but that would be
offline resillence rather than online !