176 IBM Midrange System Storage Hardware Guide
On one hand, you need to define the arrays and the logical drives you need, including
considerations such as number of drives in the arrays, size of the logical drives, RAID level,
and segment size. To plan the disk layout, you need to know the attached hosts, their
operating system, and the applications using the DS5000 storage subsystem. You also need
to consider the performance aspects and requirements.
On the other hand, you also need to define the layout of the attached hosts with their host bus
adapters and the mappings of the logical drives to specific host groups or hosts.
Before starting to configure your DS5000 storage subsystem, you should draw up a plan. This
will allow you implement your storage requirements in the best way, minimizing any problems
with a future desired reconfiguration. Keep all the necessary information regarding the
different configuration options in your plan in order to configure your storage.
4.9.2 Enabling the premium features
In order to activate your purchased premium features, perform these steps:
1. Obtain the Feature Enable Identifier for your Storage Subsystem.
2. Use the Web to generate the activation file.
3. Install the activation file using the DS Storage Manager.
Obtain the Feature Enable Identifier for your storage subsystem
From the Subsystem Management window of your DS5000 storage subsystem, select
Storage Subsystem ï‚®ï€ Premium Features. This opens a window that shows the current
activation status of the premium features in your subsystem, as shown in Figure 4-39.
Figure 4-39 Premium Features and Feature Pack Information
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