Usually an NFS server is configured to export the same file systems to different server pools. This setup is described as having uniform exports. If, however, your NFS server is configured to export different file systems to different server pools, no single server in any server pool has full access to all of the exports available on the NFS server. This setup is described as having non-uniform exports. In these cases, in order for Oracle VM Manager to properly handle file system refreshes, you need to configure Access Groups to define the permissions available to each server pool. If your exports are uniform across all server pools, you do not need to perform this operation.

It is important to understand that when describing uniform and non-uniform exports, we are describing how the NFS server is configured to present exports to all of the servers belonging to a particular server pool. Within any clustered server pool, all of the servers must have access to the same exports on the NFS server.

The Access Groups perspective lists the different Access Groups configured in your environment. The following columns are displayed in the management pane:

This perspective includes a toolbar that consists of the following options:

Table 6.7 Access Groups Perspective Toolbar Icon Options

Toolbar Icon Option	Icon	Description
Create An Access Group		Displays the Create an Access Group dialog box. Use this option to create a new access group.
Edit Access Group		Displays the Edit Access Group dialog box. Use this option to edit access group settings such as name, description, file systems belonging to the Access Group and the servers that have access to these file systems.
Delete Access Group		Displays the Delete Confirmation dialog box. Use this option to delete the selected access group.
Display Selected Access Group Events...		Display the Events dialog box which contains the job event associated with the selected access groups.