The following procedures and Online Help topics can be used as a guide to set up storage partitioning on a storage subsystem. Keep in mind that there are other ways to configure a storage subsystem; this is presented as one possible scenario. This example explains how to define the topology and logical drive-to-LUN mappings shown here:
Four hosts (Omaha A and B, and KC-A and B) are connected to Storage Subsystem Midwest. The administrator of the storage subsystem should make sure that Omaha A and B have access to logical drives Marketing and H Resources and KC-A and KC-B have access to logical drives Legal and Engineering. In addition, the administrator wants host KC-A to have exclusive access to logical drive Financial. To accomplish this, the following steps must be done:
Important: If your storage subsystem is directly managed and has the Access Logical Drive assigned to the Default Host Group, the Access Logical Drive will get assigned to every host created from the Default Host Group. To stop this from happening, delete the Access Logical Drive mapping from the Default Host Group before creating hosts. See Deleting a Logical Drive-to-LUN Mapping for more information about deleting a logical drive-to-LUN mapping. |
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1 |
Create each logical drive (Financial, Legal, Engineering, Marketing, and H Resources) according to the procedures in Creating a Logical Drive. When entering logical drive-to-LUN mapping settings, make sure "none (map later)" is selected. |
2 |
Define the host groups (Omaha and Kansas City) according to Defining a Host Group. Host groups must be created because multiple hosts must have access to the same logical drives. |
3 |
Define the hosts (Omaha A and B and KC-A and B) under the host groups according to Defining a Host. |
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Define the host ports (Omaha A1, A2, B1, and B2 and KC A1, A2, B1, and B2) according to Defining a Host Port. The host ports are the topological entity that lets the host access the logical drives. |
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Assign access for each host group or host according to Defining a Logical Drive-to-LUN Mapping. For example, select host KC-B and define an exclusive logical drive-to-LUN mapping for logical drive Financial (one partition). Then, select host group Kansas City and define logical drive-to-LUN mappings for logical drives Legal and Engineering (a second partition). Finally, select host group Omaha and define logical drive-to-LUN mappings for logical drives Marketing and H Resources (a third partition). |
After completing all the steps in the previous procedure, the topology and mappings in the Mappings Window would look like the following: