Logical Partition

What is Logical Partition?

A logical partition refers to a specific partition on the hardware resources of a computer. This partition, also referred to as LPAR, is set aside and it acts as a virtual and additional computer.

Technically, these are divisions of multiple resource sets in a physical machine that acts as a virtual system with their respective illustrations of an operating system.

Understanding Logical Partition

What is Logical Partition

A logical partition is a dedicated space within the hardware of a computer. It has its own resources to function independently.

This is because the resources available on the server are actually divided into small subsets when you create a logical partition.

Ideally, the main purpose of creating a logical partition is to provide the server with the ability to operate as if there are two or more separate servers, the number of which depends on the number of such partitions created.

You can even install other software on such partitions that act as virtual systems.

In addition to that, you can also assign the following to a logical partition:

The logical partitions will typically share the resources between them, in spite of each having the ability to serve as a separate server.

This helps in enhancing utilization of resources on the server and also move them to areas where they are needed the most.

Here is the list of some of the ways in which the logical partitions share the resources between them, though, in some specific types of server models these may be optional and may need obtaining and entering an activation code:


Logical partitions act quite efficiently to enhance the overall performance of the computer system since they share the same attributes as the parent partition. These are:

However, the other attributes of the system may vary from one logical partition to the next.


On a given server, you can create a lot of logical partitions, often numbering in the thousands. However, you will need to use the proper tools to create logical partitions on the servers. The selection of such tools will depend on specific factors such as:

Some of the most commonly used tools for creating logical partitions are as follows:

What Does a Logical Partition Do?

Ideally, a logical partition is a particular division on the storage, memory or the processor of the computer system that helps in storing different sets of resources, each of which can be used independently with its own operating system and run as autonomous server systems.

These partitions also help in using the dedicated hardware resources for different purposes, including but not limited to the following:

If there is adequate certification, such as Common Criteria EAL 5+, which is comparable to physically independent servers, a logical partition can also be used to support the highest level of security protocols, typically required in military use, and others.

Creating multi-client environments

Ideally, logical partitions allow for the creation of more multi-client environments. This will increase the availability quotient of the e-commerce services for a large number of clients.

The process allows each of the clients to configure and use the apps independently by using the computing resources and tech support offered to them.

This helps in isolating each client and will let them use the resources. It is much more cost-effective than providing a dedicated physical server to each, which will also reduce the amount of computing resources available to them.

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When one client stops using the service, the logical partition is deleted and the resources can be reassigned to other partitions.

Creating a separate test environment

A logical partition with separate resources on a managed system can also be used for creating separate test environment by removing resources from the production environments.

By using dynamic partitioning, this helps in testing peak production demand and inventory application and management.

Integrating new company acquisitions

All companies do not use the same applications for inventory, billing, payroll, and others. If you acquire another company, logical partitions can help in integrating the two on a single set of applications. This will reduce time and data center costs.

If you need more processing power and memory for the combined workloads, you can even use Capacity Upgrade on Demand (CUoD) on the managed system and dynamic partitioning to get the best results by using a single application set.

In short, a logical partition in the hardware resources on the same server offers significant benefits such as:

Can You Delete a Logical Partition?

Yes, you can delete a logical partition along with all other profile partitions that are related to it. However, if the particular partition is the service logical partition of the managed system, you will not be able to delete it easily.

If you want to delete a service logical partition, you will have to create another logical partition that will perform as a service logical partition on your managed system.

Alternatively, you may remove the partition designation from the logical partition.


Normally, there are also a few preparations required before you go ahead and delete a logical partition.

Ideally, in order to delete a logical partition, you will need to use specific hardware management tools and utilities such as Hardware Management Console (HMC).

You will have to complete the following steps in order to delete a logical partition:

If you do not find the Delete Partition option straightaway, you may first go to the Cleanup associated Virtual I/O Server mappings check box and then click on the Delete associated virtual disks check box.

If you are deleting a logical partition using a shared memory, the hardware management tool will perform the following tasks:

However, you must remember that the process will delete the logical partition and all data stored on the partition profiles along with it.

And if the logical drive is the only one in the array, then the entire array will be deleted.

If that is the case, then you may use the Unified Extensible Firmware Interface or UEFI System Utilities or Shell Command, depending on the system, and follow these steps:

Logical Partition Vs Primary Partition

Can You Install Windows on a Logical Partition?

Yes, you can install Windows on a logical partition, but there are a few specific things to remember. This should be done in the extended partition. Also, you will have to boot Windows from a primary partition.


A logical partition is very useful for better hardware resource allocation and utilization along with time management, and through this article, you know how.

However, in spite of the benefits provided, it has some specific downsides, such as failure of the entire server due to failure of the processor and memory.