Designing your logical partitions

 

Perform capacity planning and complete the planning worksheets that are needed to successfully create partitions on your server. Examples of capacity planning worksheets and planning hardware worksheets can guide you through the process.

After understanding the hardware and software requirements for logical partitions, it is time to develop a detailed outline of your company's immediate and future workload demands for each partition. You need to consider how these demands will change your system resources. You should focus on the workload demand in each partition and then determine the hardware resources required to achieve the desired server performance.

You can start the planning process for each partition on your server by completing the following topics.

Refer to the Dynamic Logical Partitioning web site for additional information on planning for logical partitions.

• Deciding what runs in the primary and secondary partition
  Each secondary partition on an iSeries™ server acts as an independent system on the server. However, these partitions maintain a dependency on the primary partition that must be running to keep each secondary partition on the system accessible. With that in mind, deciding on what runs in the primary partition is important to maintain stability throughout your system.

• Capacity planning for logical partitions
  Capacity planning or sizing can help you determine how much hardware you need in each partition and in your system as a whole. This information can help you determine the resources necessary to achieve a desired level of performance.

• Using the LPAR Validation Tool
  The LPAR Validation Tool (LVT) emulates an LPAR configuration and validates that the planned partitions are valid. In addition, LVT enables you to test the placement of i5/OS^® and Linux^® hardware within the system to ensure that the placement is valid.

 

Parent topic:

Planning for logical partitions

Related concepts
Hardware requirements for logical partitions Software requirements for logical partitions