Using the Storage Partition Definitions Window

Use the Storage Partition Definitions Window to configure or reconfigure topology definitions and to create or change logical drive-to-LUN mappings.

Note: You must define your host topology if you are going to use storage partitions. However, even if you are not planning to use storage partitions, you can use the topology definition options to define the hosts that are attached to your Storage Subsystem. For more information, see Introduction to Storage Partitions.

The Storage Partition Definitions Window is composed of two panes:

Note: Resize either pane by dragging the splitter bar between the two panes to the right or to the left.

About the Topology View

The Topology View displays the host groups and/or hosts you have defined.

If you have not defined your topology and made specific logical drive-to-LUN mappings, then the Topology View is displayed with the Default Host Group under the Storage Subsystem, as shown in the example at left.
   
When you create topology definitions, the defined host groups and hosts initially appear under the Default Host Group.

In the example at left, the Host Group Omaha and Hosts Omaha A and Omaha B, and Host Ports Omaha A1, Omaha A2, Omaha B1, and Omaha B2 have been defined, but not yet given specific mappings. Therefore, they remain under the Default Host Group.
   
When you define specific logical drive-to-LUN mappings to host groups and hosts, the host groups and hosts move from under the Default Host Group to under the Storage Subsystem indicating that they have specific logical drive-to-LUN mappings.

In the example at left, Host Group Omaha and its associated Hosts Omaha A and Omaha B have been given specific logical drive-to-LUN mappings. This action causes the host group and its associated hosts to move out of the Default Host Group. Also, this action causes one storage partition to be used.

Important: After a host group or host has moved out from under the Default Host Group, that host group or host can access ONLY the logical drives that have been mapped to it.

About the Mappings View

The Mappings View displays the default and/or specific logical drive-to-LUN mappings in a table form.

Important: Remember that during logical drive creation, you choose whether to:

Mappings View Display Variations

If all logical drives in the Storage Subsystem have been given default logical drive-to-LUN mappings, the mappings are displayed in the Mappings View, as shown in the example below. This is the normal, initial view if you are NOT planning to define storage partitions.

Notes:

  • In the Mapping table, the designation of "Default Host Group" under the Scope column indicates default logical drive-to-LUN mappings.

  • To display default logical drive-to-LUN mappings, select the Storage Subsystem, the Default Host Group, or any host group or host under the Default Host Group in the Topology View.
 
If all logical drives in the Storage Subsystem are unmapped, no information is displayed in the Mappings View. The logical drives are available for mapping using the Define New Mapping option. This is the normal, initial view if you are planning to define storage partitions.
 
If some logical drives in the Storage Subsystem have been given default logical drive-to-LUN mappings, and other logical drives have been given specific logical drive-to-LUN mappings, both default and specific mappings are displayed in the Mappings View, as shown in the example below. This would normally only occur if you are in the process of defining or changing some default logical drive-to-LUN mappings to specific logical drive-to-LUN mappings for a host group or host. If you are using storage partitions, you will want to map all logical drives to specific logical drive-to-LUN mappings. Therefore, when all mappings have been made, the Default Host Group should not contain any logical drive mappings.



Notes:

  • In the Mapping table, the designation of "Default Host Group" under the Scope column indicates default logical drive-to-LUN mappings. The designation of "Host Group <host group name>" or "Host <host name>" under the Scope column indicates specific logical drive-to-LUN mappings.

  • To display all logical drive-to-LUN mappings, select the Storage Subsystem in the Topology View. To display specific mapping information for a host group or host, select the host group or host in the Topology View.

Using Storage Partition Definitions Pull-down Menus

Menu options Use this option to...
File
 
Exit Close the Storage Partition Definitions window and return to the Subsystem Management Window.
Edit
 
Rename Rename a host group, host, or host port in your topology.

See, Renaming a Host Group, Host, or Host Port.
Delete Delete a Logical Drive-to-LUN Mapping, or delete a host group, host, or host port topology definition.

See, Deleting a Node or a Logical Drive Mapping.
Configure menu options

Topology

 
Define New Host Group Define a host group in your topology. Remember that after defining a host group, you must define its associated hosts and host ports.

See, Defining a Host Group.
Define New Host Define a host in your topology. Remember that after defining a host, you must define its associated host port(s).

See, Defining a Host.
Define New Host Port Define a host port in your topology.

See, Defining a Host Port.
Move Host Move a host from one host group to another, or remove a host from a defined host group.

See, Moving a Host from One Host Group to Another Host Group.
Move Host Port Move a host port from one host to another.

See, Moving a Host Port.
Replace Host Port Replace a failed host port.

See, Replacing a Host Port.

Logical Drive-to-LUN Mappings

 
Define New Mapping Map a logical drive to a LUN and grant access to a defined host group, defined host, or the Default Host Group.

See, Defining a Logical Drive-to-LUN Mapping.
Change Mapping Change the logical drive mapping to a LUN and/or to a defined host group, defined host, or the Default Host Group.

See, Changing a Logical Drive-to-LUN Mapping.
Help Menu options Invoke the context-senstitive help for the Storage Partition Definitions Window.