HP StorageWorks 6000 HP StorageWorks 6000-series Virtual Library System User G - Page 148

5. Select Fibre Channel in the navigation tree. The Fibre Channel Host Ports window opens (Figure 64). Figure 64 Fibre Channel Host Ports window . 6. Enter a value for the Loop ID in the Loop ID Preferred box for each Fibre Channel host port to use for prioritizing communication requests with the VLS. If the Fibre Channel host port's topology is Fabric, the Loop ID value is ignored. 7. Select the Fibre Channel host port's topology in the Topology Preferred box for each Fibre Channel host port. Auto-Allows the VLS to determine the Fibre Channel port's topology Loop-Sets the topology type to an arbitrated loop Fabric-Sets the topology type to fabric 8. Select a link speed in the Link Speed Preferred box for each Fibre Channel host port. Auto-Allows the VLS to determine the Fibre Channel port's link speed 1-1 Gb per second 2-2 Gb per second 4-4 Gb per second 9. When you are finished configuring the Fibre Channel ports, click Apply Settings. 10. Restart the VLS device emulations to make the changes take effect. See "Restarting VLS Device Emulations" on page 175. Managing Oversubscription Because the VLS dynamically allocates storage space as data is written to virtual media, the VLS allows you to allocate more cartridge capacity than is physically installed. This feature, called oversubscription, permits configuring your system for anticipated storage growth; configure cartridges beyond your current capacity and then seamlessly add physical storage later. By default, oversubscription is disabled. 148 Configuration