1.3 The Visual Administrator and CVM

The Visual Administrator provides the following support for CVM:

• The Visual Administrator root window highlights shared disk group view buttons with a green shaded border (to distinguish them from unshared disk groups). In monochrome, a shared disk group button has a grey shaded border instead.

• The view window for a shared disk group displays the string Shared Disk Group in its title bar. On color monitors, the background color for a shared disk group view is green; on monochrome monitors, there is no change in the background color.

• A disk group can be initialized as cluster-shareable for an active cluster. To accommodate this, the Initialize Disk Group form contains a Shared disk group: field that can be set to Yes or No. If set to Yes, the disk group is defined as cluster-shareable upon initialization. The system administrator is responsible for ensuring that disks specified as members of the cluster-shareable disk group are physically accessible from the hosts that make up the cluster.

• A disk group can be imported as shared through the Visual Administrator. To accommodate this, the Import Disk Group form has a Shared disk group: field that can be set to Yes or No. If set to Yes, the disk group is imported as cluster-sharable. This is only valid if the cluster is active on the host where the import takes place. The administrator is responsible for ensuring that all disks in a shared disk group are physically accessible by all hosts; a host that cannot access all disks in a shared disk group cannot join the cluster.