Procedure to create a new LPAR using dedicated resources

This document describes the step by step procedure to create a new LPAR with dedicated resources like processor, memory and I/O.

Step1: Login into HMC GUI.

To create a new logical partition, you have to login into HCM either locally or remotely using WebSM.

Example below uses WebSM to login into the HMC

Type the hostname of HMC that you want to connect to and click on Log on tab.In this example we are logging into adcaphmc01 to create a new logical partition.

WebSM client then communicates with WebSM server services on HMC and prompts for user name and password. Enter the username and password for HMC and click on Log on tab.

A successful authentication allows you to access the HCM GUI as shown below.

Step 2: Plan for the resource allocation to a new LPAR.

Before creating any new LPAR, one should plan thoroughly for the resource allocation. An agreement should be made on the minimum, desired and maximum value of processors & memory, shared or dedicated processors and type and number of I/O cards.

In the example to follow, we are creating a new LPAR adcapsap03-HRNEW with following resources

1. CPU – Mode - Shared Processing unit - 0.2 min, 0.5 desired, 1.0 max Virual CPU – 1 min, 1 desired, 2 max

2. Memory – 4 GB min, 8 GB desired , 10 GB Max

3. I/0 cards – 1 * SCSI controller with 4 SCSI disks (U5791.001.99B064P-P1-T5)

2 * 2Gbps fiber channel cards (U5791.001.99B064P-P1-C05) (U5791.001.99B064P-P2-C08)

3 * Virtual Ethernet cards (U5791.001.99B0760-P2-C06)

Resource allocation for the SAP p590 is mentioned in a separate document.

Step 3: Creating new LPAR

On the left panel, click on adcaphmc01.uk.rweutil.net server and partitions server management. The right panel will now display the p590 server and the partitions under it. Right click on thames-p50-01

select Createlogical partition

This would start a wizard for creating the new LPAR

On this screen, type the partition name as adcapsap03-HR3NEW and selectpartition environment as AIX or Linux.

Click on Next

This screen prompts for adding the logical partition to a Workload group. Since we are not using any Workload group, so select NO and click on next.

The following screen prompts for logical partition profile name.

Type Profile name as Normal and click on Next.

The following wizard screen prompts for the minimum, desired and maximum value of memory.

As mentioned in step 2, we select the values of minimum, desired and maximum memory as 4GB, 8GB and 10 GB respectively.

Click on Next

The following wizard screen prompts for the Processor allocation.

Because we are using micro partitioning for the development, test and training servers, so select the Shared radio button.

For production servers we would be assigning dedicated processors for the LPAR.

I this example we are creating LPAR for a SAP development server, so we select Shared mode and click on next.

The following screen prompts for the processing setting

As mentioned in step 2, we enter the value of minimum, desired and maximum processing units as 0.2, 05 and 1.0 respectively.

Click on Advanced tab

Select processing sharing mode as Uncapped with Weight as 128. UnderVirtual processor panel, select minimum, desired and maximum values as1,1 and 2 respectively. Click on OK tab.

Again click on next to proceed further.

The following wizard screen will prompt for I/O resources.

Select the I/O resources as mentioned in step 2

Select U5791.001.99B064P-P1-T5 SCSI bus controller and click on Add as required. This would add the I/O device to the LPAR profile in pane below.

In similar manner add I/O U5791.001.99B064P-P1-C05 Fiber channel card and U5791.001.99B064P-P2-C08 Fiber channel card to the LPAR profile.

Similarly add U5791.001.99B0760-P2-C06 Ethernet adapter to the profile I/O devices.

Once all the resources are added to the profile I/O devices as required, Click on Next

The following wizard screen prompts for I/O pools. Since we are not using any shared I/O pool, so ignore this screen .

Click on Next

The following wizard screen prompts for the Virtual I/O Adapters.

We are not making any use of Virtual I/O devices in this example.

Select No and Click on Next

The following screen prompts for the power controlling partition. For the all the LPARSthat we have defined, the default partition 83-8C6DB(1) is acting as the power controlling partition.

Ensure that the default partition 83-8C6DB(1) is displayed in the drop down list and clickNext.

The following screen prompts for the Boot mode.

Select the Boot mode as Normal and click on next

The following wizard screen is a summary Screen. If you want to make any changes on previous screens, the you can use previous tab to scroll back and make changes if any.If you are sure of your selections, the click on Finish tab and this would create the new LPAR.

You will now see a status screen

Once the creation of LPAR is successful, the new LPAR is displayed under the managed system thames-p50-01.

You can see that the new LPAR adcapsap03-HRNEW under managed system thames-p590-01.

You can recheck the resource allocation by right clicking the profile and selecting properties.

This end the procedure to create a new LPAR using dedicated resources.

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