Dell PowerVault MD3620i Owner's Manual - Page 142

When you choose this type of configuration, all of the hosts must have the same operating system and special software (such as clustering software) to manage virtual disk sharing and accessibility. More than one storage partition is required if: • Specific hosts must access specific virtual disks in the storage array. • Hosts with different operating systems are attached to the same storage array. In this case, a storage partition is created for each host type. You can use the Storage Partitioning Wizard to define a single storage partition. The Storage Partitioning Wizard guides you through the major steps required to specify which host groups, hosts, virtual disks, and associated logical unit numbers (LUNs) are to be included in the storage partition. Storage partitioning fails when: • All mappings are defined. • You create a mapping for a host group that conflicts with an established mapping for a host in the host group. • You create a mapping for a host in a host group that conflicts with an established mapping for the host group. Storage partitioning is unavailable when: • No valid host groups or hosts exist in the Topology pane on the Mappings tab. • No host ports are defined for the host being included in the storage partition. • All mappings are defined. NOTE: You can include a secondary virtual disk in a storage partition. However, any hosts that are mapped to the secondary virtual disk has readonly access until the virtual disk is promoted to a primary virtual disk, or the mirror relationship is removed. 142 Configuration: Disk Groups and Virtual Disks