Setting up Storage Partitioning, Step-by-Step

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-B to have exclusive access to logical drive Financial. To accomplish this, the following steps must be done:

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.

4

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 actually allows the host to gain access to the logical drives.

5

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 Storage Partitioning Definitions Window would look like the following: