Creating an SAP S/4HANA Instance

Scenarios

SAP S/4HANA runs on ECSs. Create one or more ECSs based on the deployment mode.

Determine the number of ECSs and related planning information based on sections "Solution Introduction" and "Data Planning".

Procedure

1. On the public cloud management console, click in the upper left corner and choose Computing > Elastic Cloud Server to switch to the Elastic Cloud Server page.
2. Click Buy ECS in the upper right corner. A page for creating ECSs is displayed.
3. Configure basic information about the SAP S/4HANA ECS as prompted. Table 1 describes the parameters.

   Table 1 SAP S/4HANA ECS basic configuration

   Parameter	Description
   Billing Mode	Select a billing mode based on the site requirements. The recommended billing mode is Yearly/Monthly.
   AZ	Specifies the AZ where the ECS is located.
   CPU Architecture	Select x86.
   Specifications	Set the type of SAP S/4HANA ECSs to High-performance computing. Set the ECS specifications based on Node Planning or site requirements.
   Image	Select Public image and SUSE Linux Enterprise Server (SLES) 12 SP1 for SAP or configure them based on site requirements.
   System Disk	Plan the system disk and data disk by referring to section Node Planning.

4. Click Next: Configure Network.
5. Configure network information for the SAP S/4HANA ECS as prompted. Table 2 describes the parameters.

   Table 2 SAP S/4HANA ECS network configuration

   Parameter	Description
   Network	Choose the VPC and subnet in specified in Creating a Subnet and Configuring a Security Group.
   Extension NIC	Create an NIC by referring to section Network Plane Planning.
   Security Group	Use the security group in section Creating a Subnet and Configuring a Security Group.
   EIP	If you select Not required, the SAP S/4HANA ECS on the private subnet can be accessed through the NAT server.

6. Click Next: Configure Advanced Settings.
7. Configure advanced settings about the SAP S/4HANA ECS as prompted. Table 3 describes the parameters.

   Table 3 SAP S/4HANA ECS advanced settings

   Parameter	Description
   ECS Name	When you create ECSs in batches, the number in the ECS Name is generated automatically in ascending order based on the Quantity value that you filled in. For example, if you fill SAP-Dev in ECS Name, the first ECS is SAP-Dev-0001, and the second ECS is SAP-Dev-0002.
   Login Mode	Select Key pair.
   Key Pair	Key Pair is recommended. A Secure Shell (SSH) key certificate is used for authenticating users who attempt to log in to SAP S/4HANA ECSs. Ensure that the ECSs where SAP S/4HANA and NAT server are to be deployed use the same key. Otherwise, SAP S/4HANA installation will fail. If you choose an existing SSH key certificate from the drop-down list, make sure that you have saved the certificate locally. Otherwise, you may fail to log in to the ECS. Click Create Key Pair. On the Key Pair page that is displayed, click Create Key Pair, specify the key pair name, and click OK. In the Information dialog box that is displayed, click OK. Then, you can query and save the private key as prompted.
   Cloud Backup and Recovery	Cloud Backup and Recovery (CBR) provides backup protection for EVS disks and ECSs, and uses backups to restore the EVS disks and ECSs. After you set Cloud Backup and Recovery, the system binds the target ECS to the cloud backup vault and associates the ECS with the selected backup policy to periodically back up the ECS. The following options are provided: Auto assign Set the name of the cloud backup vault, which is a character string consisting of 1 to 64 characters, including letters, digits, underscores (_), and hyphens (-). For example, vault-f61e. The default naming rule is vault_xxxx. Enter the vault capacity, which is required for backing up the ECS. The vault capacity cannot be smaller than that of the ECS to be backed up. Its value ranges from the total capacity of the ECS to 10,485,760 in the unit of GB. Select a backup policy from the drop-down list, or log in to the CBR console and configure a desired one. Use existing Select an existing cloud backup vault from the drop-down list. Select a backup policy from the drop-down list, or log in to the CBR console and configure a desired one. Not required: This function is not required. If you require this function after purchasing the ECS, log in to the CBR console and bind the desired cloud backup vault to your ECS.
   ECS Group	This parameter is displayed only after you click Configure now behind Advanced Options. Specify an SAP S/4HANA ECS group. When you create ECSs, the system will allocate the ECSs in the same server group to different physical servers to ensure the running reliability of these ECSs. Determine the policy of an SAP S/4HANA ECS group based on the deployment mode: Standardized deployment: You do not need to specify an ECS group. HA deployment: All SAP S/4HANA ECSs must belong to the same ECS group. NOTE: Perform the following operations to create an ECS group: Click Create ECS Group. On the displayed page, click Create ECS Group, specify the ECS group name, and click OK.
   Advanced Options	Select Configure now.
   Agency	After the agency is specified, the delegated domain can obtain the credentials from the agency to temporarily access the public cloud. You need to specify the DataproviderAccess agency for the SAP S/4HANA ECS to interconnect with Data Provider. Log in to the management console as the tenant administrator and create the agency. For details, see Data Provider for SAP User Guide.

8. Click Next: Confirm.
9. Confirm the information about SAP S/4HANA ECSs as prompted.

   Table 4 SAP S/4HANA ECS information

   Parameter	Description
   Enterprise Project	Select the name of a created enterprise project, for example, SAP.
   Required Duration	Set the duration based on your requirements.
   Quantity	Set this parameter as required.
   Agreement	Select I have read and agree to Huawei Image Disclaimer.

10. Click Next and complete the payment as prompted.
11. The system returns to the Elastic Cloud Server page. Check the status of the created task in Task Status on the right of the page.
12. After the SAP S/4HANA ECS is created, you can view the ECS from the ECS list on the right of the page.
13. Create other SAP S/4HANA ECSs as required.
14. Change the root password for logging in to all SAP S/4HANA ECSs.
    Properly keep the root password. In addition, ensure that all SAP ECSs use the same root password.

    1. Use the key to log in to the SAP S/4HANA ECSs.
    2. Run the following command to change the password for user root:

       passwd

       Enter the password as prompted for confirmation.