Dell MD3220, MD3200 owner manual Disk Group and Virtual Disk Expansion, 131

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 read-only access until the virtual disk is promoted to a primary virtual disk, or the mirror relationship is removed.

Storage partitioning topology is the collection of elements, such as Default Group, host groups, hosts, and host ports shown as nodes in the Topology pane of the Mappings tab in the AMW. For more information, see "Using the Mappings Tab" on page 86.

If a storage partitioning topology is not defined, an informational dialog is displayed each time you select the Mappings tab. You must define the storage partitioning topology before you define the actual storage partition.

Disk Group and Virtual Disk Expansion

Adding free capacity to a disk group is achieved by adding unconfigured capacity on the array to the disk group. Data is accessible on disk groups, virtual disks, and physical disks throughout the entire modification operation. The additional free capacity can then be used to perform a virtual disk expansion on a standard or snapshot repository virtual disk.

Disk Group Expansion

To add free capacity to a disk group:

1In the AMW, select the Logical tab.

2Select a disk group.

3Select Disk Group→ Add Free Capacity (Physical Disks).

The Add Free Capacity window is displayed. Based on the RAID level, and the enclosure loss protection of the current disk group, a list of unassigned physical disks is displayed.

Configuration: Disk Groups and Virtual Disks

131