As part of the storage repository creation you can select the Oracle VM Servers to which the repository must be made available. However, you can modify this selection afterwards and present the repository to new servers or unpresent it from servers previously selected.
Presenting the storage repository to an Oracle VM Server is the equivalent of mounting a file system. Essentially, when you present the repository to the Oracle VM Servers in your server pool, the repository file system is mounted by the root user on each Oracle VM Server. This is an essential factor in the HA configuration of the Oracle VM setup.
To present or unpresent Oracle VM Servers to a storage repository, see Present or Unpresent Repository in the Oracle VM Manager User's Guide.
NFS-based storage repositories can be shared by multiple server pools controlled by the same Oracle VM Manager. OCFS2-based storage repositories always belong to a single clustered server pool. Therefore only members of that server pool appear in either pane.