Provisioning SAP S/4HANA

Prerequisites

The required single-node SAP SHANA system has been deployed on HUAWEI CLOUD. For details about how to deploy the system, see SAP HANA User Guide (Single Node).

Procedure

Before deploying SAP S/4HANA, you need to select a template in the Enterprise Project Management service.

1. Log in to the management console. In the upper right corner, choose Enterprise > Project Management.

   The Enterprise Project Management page is displayed.

2. In the navigation pane on the left, choose Application Management > Template Management.
3. Click the Example templates tab, locate the row that contains the target SAP S/4HANA template, and click Create Application.

   An application is a collection of resources, which may include multiple cloud servers, networks, and EVS disks.

   Table 1 Parameter information

   Parameter	Description	Example Value
   Enterprise Project Name	Select an existing enterprise project from the drop-down list box.	SAP
   Region	Select a region to create the application. A maximum of 100 applications can be created in each region.	CN-Hong-Kong
   Application Name	Specifies the name of the provisioned application.	S4HANA-1709
   Application Description	Optional. The description can contain a maximum of 256 characters.	-
   Source Type	Select Example templates or My templates as required.	Example Templates
   Template Type	Set it to SAP or Common as required.	SAP
   Select Template	Select the template from the list. If there are many templates, you can enter the template name in the search box to search for the template.	S4HANA-Standard

4. Click Next. After the parameters are verified, the Configure Parameters page is displayed.

Configuring Parameters

After the template is uploaded to the Enterprise Management service, you need to specify related parameters to create the application. Parameters, including AZ, VPC and its subnet, security group, key pair, and IAM agency name, must be the same as those of the existing SAP HANA system (single-node deployment). Obtain the required information in advance. On the Configure Parameter page, specify the required parameters. For details about the required application parameters, see Table 2.

1. Set application parameters. The following uses SAP S/4HANA 1809 as an example.

   Table 2 Parameter information

   Parameter	Description	Example Value
   Network Configuration
   VPC Name	VPC ID of the SAP S/4HANA ECS. This value must be the same as the VPC ID of the SAP HANA ECS.	vpc-saphana
   Subnet	Subnet ID of the SAP S/4HANA ECS. This value must be the same as the subnet ID of the SAP HANA ECS.	subnet-fd25-sap
   Server and Storage Configuration
   AZ	AZ of the SAP S/4HANA ECS. This value must be the same as the AZ of the SAP HANA ECS.	AZ1
   ECS Specification	Flavor of the SAP S/4HANA ECS. Select an image based on ECS Specifications.	m3.2xlarge.8 | 8 vCPUs | 64 GB
   Image	Image of the SAP S/4HANA ECS. Select an image based on Requirements on OSs and Disks.	Private image: SUSE Linux Enterprise Server for SAP Applications 15
   Security Group	Security group of the SAP S/4HANA ECS. This value must be the same as the security group of the SAP HANA ECS.	(sg-saphana)10499571-92ad-466f-a555-a608a3f1c65c
   Key Pair	Key pair name. Select the key pair used by the SAP HANA ECS.	KeyPair-HANA
   IAM Agency	IAM agency name. After the IAM agency is configured, the ECS has the permission to access OBS and Cloud Eye. For details about the agency name, see Configuring an Agency.	DataProviderAccess
   System Disk (GB)	Size of the system disk. The minimum size must be the size (GB) of the SAP S/4HANA ECS image.	100
   System Disk Type	Type of the system disk	High I/O
   Usrsap Disk (GB)	Size of the usrsap disk (GB)	50
   Usrsap Disk Type	Type of the usrsap disk	High I/O
   Sapmnt Disk (GB)	Size of the sapmnt disk (GB)	110
   Sapmnt Disk Type	Type of the sapmnt disk	High I/O
   Swap Disk (GB)	Size of the swap disk (GB)	64
   Swap Disk Type	Type of the swap disk	High I/O
   SAP Configuration
   S/4HANA Hostname	SAP S/4HANA hostname. The name must be 1 to 13 characters long and must contain only letters, digits, periods (.), hyphens (-), and underscores (_).	s4hana
   SAP System ID	SAP system ID. The ID is composed of one uppercase letter and two digits.	S01
   ASCS Instance Number	ASCS instance number	00
   PAS Instance Number	PAS instance number	01
   S/4HANA Password	Password of the SAP S/4HANA system. Confirm the password. The password must comply with the SAP password setting rules.	Set this parameter based on the actual situation.
   HANA IP	IP address used to connect to the SAP HANA database.	10.0.3.1
   HANA System ID	System ID of the SAP HANA database. The ID is composed of one uppercase letter and two digits.	S00
   HANA Instance Number	Instance number of the SAP HANA database	00
   HANA Password	Password of user SYSTEM to log in to the SAP HANA database. The password must comply with the SAP password setting rules.	Set this parameter based on the actual situation.
   OBS Backup Directory	Directory of the SAP S/4HANA installation package on OBS. For details, see Uploading the Software Packages. NOTE: The OBS bucket directory is in the format of obs://Bucket name/Directory.	obs://obs-s4/SAPS4HANA1709
   Extended Configuration
   OS Version	OS version	SUSE 12
   S/4HANA Usage Type	Usage type of SAP S/4HANA	DEV
   Application Type	SAP S/4HANA application type	S/4HANA
   S/4HANA Version	SAP S/4HANA version. Select a version from the drop-down list box.	S/4HANA 1709
   SAP Kernel Version	SAP kernel version	773
   Install SAP Software	Decide whether to install SAP software based on the site requirements.	Yes

2. Click Next, confirm the application information, and click Submit.
3. The application management page is displayed. If the application Status is Creation succeeded, the SAP S/4HANA application is created successfully.
   

   If the application Status is Failed to create, delete the application by referring to How Do I Delete an Application? and create one again.

Configuring Mutual Trust

To enable the NAT server and SAP S/4HANA ECS to communicate with each other using SSH, you need to configure mutual trust between them. The password for user root to log in to the created SAP S/4HANA ECS is the default image password. You need to use the key pair to log in to the NAT server to configure mutual trust between the NAT server and the SAP S/4HANA ECS and change the password of user root to log in to the SAP S/4HANA ECS.

1. Use PuTTY to log in to the NAT server. Ensure that user root and the private key file (.ppk file) are used for authentication. Send the private key file and the authorized_keys file on the NAT server to the SAP S/4HANA ECS through the IP address. The commands are in the following format:

   scp /root/.ssh/id_rsa Peer IP address:/root/.ssh/id_rsa

   scp /root/.ssh/authorized_keys Peer IP address:/root/.ssh/

   For example, if the peer IP address is 10.0.3.102, run the following commands:

   scp /root/.ssh/id_rsa 10.0.3.102:/root/.ssh/id_rsa

   scp /root/.ssh/authorized_keys 10.0.3.102:/root/.ssh/

2. Verify the switching.

   Switch from the NAT server to the SAP S/4HANA ECS using SSH. Assume that the IP address of the SAP S/4HANA ECS is 10.0.3.102.

   ssh 10.0.3.102

   

   During the first switching, the system displays the fingerprint as well as the message "Are you sure you want to continue connecting (yes/no)?". In such a case, enter yes and continue the switching.

3. After switching to the SAP S/4HANA ECS, run the following command to change the password of user root:

   passwd

   Enter the new password as prompted and confirm it.

   

   Securely keep the root password. In addition, ensure that the passwords of user root for logging in to all ECSs are the same.

Modifying the Configuration File

Modify the configuration file on the server where the SAP application is deployed. For details, see What Should I Do If a SAP Application on an ECS Cannot Be Started?.

Checking the Deployment Status

After the ECS is created, deploy SAP S/4HANA on the ECS. You can log in to the SAP S/4HANA ECS to view the deployment status.

1. Use PuTTY to log in to the NAT server with an EIP bound. Ensure that the root user and the key file (.ppk file) are used for authentication. Then, use SSH to switch to the SAP S/4HANA node.
2. Run the following command on the CLI to view the installation logs:

   tailf /var/log/huawei/auto-install/s4-intall.log

   If Install S4 Successful is displayed in the installation log, the software deployment is complete. The following is an example of the log content indicating that the installation is successful:

   INFO      2018-12-26 17:50:26.325 (root/sapinst) (startInstallation) [syuxcpath.cpp:441]id=syslib.filesystem.creatingFile CSyPath::createFile()Creating file/tmp/sapinst_instdir/S4HANA1809/CORE/HDB/INSTALL/STD/ABAP/instslana.xml.
   INFO      2018-12-26 17:50:29.746 (root/sapinst)(startInstallation) [syuxcdir.cpp:147] id=syslib.filesystem.removedDirectoryCSyDirectoryImpl::sap_remove(ISyFSErrorHandler * pErrorHandler)Removed directory /root/.sapinst/s41809/4576.
   [2018-12-26 17:50:29] [INFO ] [s4-install.sh 319] Install S4 successful
   [2018-12-26 17:50:29] [INFO ] [s4-install.sh 540] ******************End to install S4********************
   [2018-12-26 17:50:29] [INFO ] [s4-install.sh 543] ******************cleanpassword in the INIT files********************

   

   The software deployment duration varies according to the software version and resource configuration.