Deployment Manager: Automated VM deployment for SAP ASE on Linux

This deployment guide shows you how to deploy and connect to a Compute Engine virtual machine (VM) that is ready for the installation of SAP Adaptive Server Enterprise (ASE) on a Linux operating system.

The instructions in this guide use Cloud Deployment Manager to deploy and configure the VM, the Linux operating system, and the required disk volumes for SAP ASE.

To use Terraform to automate the deployment of Google Cloud resources for SAP ASE on a Linux system, see Terraform: Automated VM deployment for SAP ASE on Linux.

For details on planning your deployment, see the SAP ASE planning guide.

Prerequisites

If you require your SAP workload to run in compliance with data residency, access control, support personnel, or regulatory requirements, then you must create the required Assured Workloads folder. For more information, see Compliance and sovereign controls for SAP on Google Cloud.

If you do not already have a Google Cloud project with billing enabled, then you must create one before you can deploy a VM for your SAP ASE installation.

To create a project:

1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

2. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Go to project selector

3. Make sure that billing is enabled for your Google Cloud project.

4. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Go to project selector

5. Make sure that billing is enabled for your Google Cloud project.

Configuring the gcloud command environment

These instructions use Cloud Shell to enter gcloud commands that deploy or configure your Google Cloud resources. Cloud Shell is accessed through the Google Cloud console in your browser.

Cloud Shell runs on a VM that Google Cloud provisions each time you start Cloud Shell. The first time you use Cloud Shell, Google Cloud also creates a persistent $HOME directory for you, which is restored each time you open Cloud Shell.

The provisioned VM includes the latest Google Cloud CLI. Therefore, the gcloud commands that you use in Cloud Shell are the same as those you would use in a locally installed instance of the gcloud CLI.

If you have the gcloud CLI installed, you can issue the gcloud commands that are used in these instructions from your local machine. However, with a locally installed gcloud CLI you must always make sure that you are using the latest version of the gcloud CLI.

Whether you use Cloud Shell or gcloud CLI, you can set and change the properties of your gcloud command environment and save them as a configuration. Configurations are collections of key-value pairs that influence the behavior of the gcloud commands.

Some basic actions you can take with a configuration in Cloud Shell include:

• Initialize a configuration:

  gcloud init

• Check the settings of your current gcloud configuration:

  gcloud config list

• Switch to the required Google Cloud project. Replace PROJECT_ID with your Google Cloud project ID.

  gcloud config set project PROJECT_ID

• Set a default region. Replace REGION with a Google Cloud region.

  gcloud config set compute/region REGION

• Set a default zone. Replace ZONE with a Google Cloud zone.

  gcloud config set compute/zone ZONE

• Create a new configuration. Replace NAME with the name for the configuration.

  gcloud config configurations create NAME

For more information about working with configurations, see Managing gcloud CLI configurations.

Creating a network

For security purposes, create a new network. You can control who has access by adding firewall rules or by using another access control method.

If your project has a default VPC network, don't use it. Instead, create your own VPC network so that the only firewall rules in effect are those that you create explicitly.

During deployment, VM instances typically require access to the internet to download Google Cloud's Agent for SAP. If you are using one of the SAP-certified Linux images that are available from Google Cloud, the VM instance also requires access to the internet in order to register the license and to access OS vendor repositories. A configuration with a NAT gateway and with VM network tags supports this access, even if the target VMs do not have external IPs.

To set up networking:

Setting up a NAT gateway

If you need to create one or more VMs without public IP addresses, you need to use network address translation (NAT) to enable the VMs to access the internet. Use Cloud NAT, a Google Cloud distributed, software-defined managed service that lets VMs send outbound packets to the internet and receive any corresponding established inbound response packets. Alternatively, you can set up a separate VM as a NAT gateway.

To create a Cloud NAT instance for your project, see Using Cloud NAT.

After you configure Cloud NAT for your project, your VM instances can securely access the internet without a public IP address.

Adding firewall rules

By default, an implied firewall rule blocks incoming connections from outside your Virtual Private Cloud (VPC) network. To allow incoming connections, set up a firewall rule for your VM. After an incoming connection is established with a VM, traffic is permitted in both directions over that connection.

You can also create a firewall rule to allow external access to specified ports, or to restrict access between VMs on the same network. If the default VPC network type is used, some additional default rules also apply, such as the default-allow-internal rule, which allows connectivity between VMs on the same network on all ports.

Depending on the IT policy that is applicable to your environment, you might need to isolate or otherwise restrict connectivity to your database host, which you can do by creating firewall rules.

Depending on your scenario, you can create firewall rules to allow access for:

• ASE network listener for client connections. The default ASE port number is 5000.
• The ports required by SAP ASE Cockpit. For a list of ports that ASE Cockpit uses, see the SAP ASE Cockpit documentation in the SAP Help Portal.
• The default SAP ports that are listed in TCP/IP of All SAP Products.
• Connections from your computer or your corporate network environment to your Compute Engine VM instance. If you are unsure of what IP address to use, talk to your company's network administrator.
• Communication between VMs in the SAP HANA subnetwork, including communication between nodes in an SAP HANA scale-out system or communication between the database server and application servers in a 3-tier architecture. You can enable communication between VMs by creating a firewall rule to allow traffic that originates from within the subnetwork.
• SSH connections to your VM instance, including SSH-in-browser.
• Connection to your VM by using a third-party tool in Linux. Create a rule to allow access for the tool through your firewall.

To create a firewall rule:

$ gcloud compute firewall-rules create FIREWALL_NAME
--direction=INGRESS --priority=1000 \
--network=NETWORK_NAME --action=ALLOW --rules=PROTOCOL:PORT \
--source-ranges IP_RANGE --target-tags=NETWORK_TAGS

Deploying a Linux VM for SAP ASE with Deployment Manager

The following instructions use Deployment Manager to deploy a VM instance with Linux and all of the persistent disks that SAP ASE requires. You define the values for the installation in a Deployment Manager configuration file template.

Deployment Manager treats all of the resources that are created for the SAP ASE system as a single entity called a deployment. You can view all of the deployments for your Google Cloud project on the Deployments page in the Google Cloud console.

The following instructions use Cloud Shell, but if you prefer, you can use the Google Cloud CLI in your local terminal instead.

1. Open the Cloud Shell.

   Go to Cloud Shell

2. Download the template.yaml configuration file template to your working directory by entering the following command in the Cloud Shell:

   wget https://storage.googleapis.com/cloudsapdeploy/deploymentmanager/latest/dm-templates/sap_ase/template.yaml

3. Optionally, rename the template.yaml file to identify the configuration it defines.

4. Open the template.yaml file in the Cloud Shell code editor.

   To open the Cloud Shell code editor, click the pencil icon in the upper right corner of the Cloud Shell terminal window.

5. In the template.yaml file, update the following property values by replacing the brackets and their contents with the values for your installation.

   Property	Data type	Description
   type	String	Specifies the location, type, and version of the Deployment Manager template to use during deployment. The YAML file includes two type specifications, one of which is commented out. The type specification that is active by default specifies the template version as latest. The type specification that is commented out specifies a specific template version with a timestamp. If you need all of your deployments to use the same template version, use the type specification that includes the timestamp.
   instanceName	String	The name of the VM instance on which SAP ASE will be installed. The name must be 13 characters or less and be specified in lowercase letters, numbers, or hyphens.
   instanceType	String	The type of Compute Engine virtual machine on which SAP ASE will be installed. If you are running SAP ASE with SAP NetWeaver on the same VM, select a machine type that includes enough CPUs and memory to support both systems. See the SAP NetWeaver planning guide.
   zone	String	The zone in which you are deploying your SAP ASE. It must be in the same region that you selected for your subnetwork.
   subnetwork	String	The name of the subnetwork that you created in a previous step. If you are deploying to a shared VPC, specify this value as SHARED_VPC_PROJECT/SUBNETWORK. For example, myproject/network1.
   linuxImage	String	The name of the Linux operating- system image or image family that you are using with SAP ASE. To specify an image family, add the prefix family/ to the family name. For example, family/rhel-7 or family/sles-12-sp2-sap. To use a specific image, enter only the image name. For the list of available image families, see the Images page in the Cloud console.
   linuxImageProject	String	The Google Cloud project that contains the image you are going to use. This project might be your own project or a Google Cloud image project, such as rhel-sap-cloud or suse-sap-cloud. For a list of Google Cloud image projects, see the Images page in the Compute Engine documentation.
   aseSID	String	The database instance ID.
   asesidSize	Integer	The size in GB of /sybase/DBSID, which is the root directory of the database instance. In the deployed VM, this volume is labeled ASE.
   asediagSize	Integer	The size of /sybase/DBSID/sapdiag, which holds the diagnostic tablespace for SAPTOOLS.
   asesaptempSize	Integer	The size of /sybase/DBSID/saptmp, which holds the database temporary table space.
   asesapdataSize	Integer	The size of /sybase/DBSID/sapdata, which holds the database data files.
   aselogSize	Integer	The size of /sybase/DBSIDlogdir, which holds the database transaction logs.
   asebackupSize	Integer	The size of the /sybasebackup volume. If set to 0 or omitted, then no disk is created.
   asesapdataSSD	boolean	The SSD toggle for the data drive. If set to true, then the data disk is SSD.
   aselogSSD	boolean	The SSD toggle for the log drive. If set to true, then the log disk is SSD.
   usrsapSize	Integer	Required only if you are installing SAP ASE to run with SAP NetWeaver on the same VM instance.
   sapmntSize	Integer	Required only if you are installing SAP ASE to run with SAP NetWeaver on the same VM instance.
   swapSize	Integer	Required only if you are installing SAP ASE to run with SAP NetWeaver on the same VM instance.

   The following configuration file creates a VM that is configured to run both the SAP ASE database server and SAP NetWeaver. The configuration file directs Deployment Manager to deploy an n1-standard-16 VM that is running a SLES 12 SP2 operating system. The VM includes all of the directories that are required to run SAP ASE with SAP NetWeaver.

   resources:
   - name: sap_ase
     type: https://storage.googleapis.com/cloudsapdeploy/deploymentmanager/latest/dm-templates/sap_ase/sap_ase.py
     #
     # By default, this configuration file uses the latest release of the deployment
     # scripts for SAP on Google Cloud.  To fix your deployments to a specific release
     # of the scripts, comment out the type property above and uncomment the type property below.
     #
     # type: https://storage.googleapis.com/cloudsapdeploy/deploymentmanager/202103310846/dm-templates/sap_ase/sap_ase.py
     #
     properties:
       instanceName: ex-vm-ase-lin
       instanceType: n1-standard-16
       zone: us-central1-f
       subnetwork: example-sub-network
       linuxImage: family/sles-12-sp2-sap
       linuxImageProject: suse-sap-cloud
       aseSID: AS1
       asesidSize: 10
       asediagSize: 15
       asesaptempSize: 20
       asesapdataSize: 50
       aselogSize: 30
       asebackupSize: 100
       asesapdataSSD: Yes
       aselogSSD: Yes
       usrsapSize: 15
       sapmntSize: 15
       swapSize: 24

6. Create the VM instance:

   gcloud deployment-manager deployments create DEPLOYMENT_NAME --config TEMPLATE_NAME.yaml

   The above command invokes the Deployment Manager, which deploys the VM according to the specifications in your template.yaml file. The process might take a few minutes. To check the progress of your deployment, follow the steps in the next section.

Verifying deployment

To verify deployment, you check the deployment logs in Cloud Logging and check the configuration of the VM.

Check the logs

1. In the Google Cloud console, open Cloud Logging to monitor installation progress and check for errors.

   Go to Cloud Logging

2. Filter the logs:

   Logs Explorer

   1. In the Logs Explorer page, go to the Query pane.

   2. From the Resource drop-down menu, select Global, and then click Add.

      If you don't see the Global option, then in the query editor, enter the following query:

      resource.type="global"
      "Deployment"
      

   3. Click Run query.

   Legacy Logs Viewer

   • In the Legacy Logs Viewer page, from the basic selector menu, select Global as your logging resource.

3. Analyze the filtered logs:

   • If "--- Finished" is displayed, then the deployment processing is complete and you can proceed to the next step.

   • If you see a quota error:

     1. On the IAM & Admin Quotas page, increase any of your quotas that do not meet the SAP ASE requirements that are listed in the SAP ASE planning guide.

     2. On the Deployment Manager Deployments page, delete the deployment to clean up the VMs and persistent disks from the failed installation.

     3. Rerun your deployment.

Check the configuration of the VM

1. After the SAP ASE system deploys without errors, connect to your VM by using SSH. From the Compute Engine VM instances page, you can click the SSH button for your VM instance, or you can use your preferred SSH method.

   

2. Switch to the root user.

   sudo su -

3. At the command prompt, enter df -h. Ensure that you see output similar to the following, such as the //sybase/DBSID/sapdata directory.

   

4. Confirm that the swap directory was created by entering the following command:

   cat /proc/meminfo | grep Swap

   You should see results similar to the following example:

   

If any of the validation steps show that the installation failed:

1. Correct the error.
2. On the Deployments page, delete the deployment to clean up the VMs and persistent disks from the failed installation.
3. Rerun your deployment.

Installing the database

Now that your operating system is configured, you can install your SAP ASE database:

To install SAP ASE on your VM:

1. Establish an SSH connection to your Linux-based VM.
2. Download or copy your SAP ASE installation media from SAP to your VM.
3. Prepare your SAP ASE SySAM license file or license server for use with the installation.
4. Install the SAP ASE database. See the SAP ASE Installation and Upgrade Guide for Linux for guidance.

Validate your installation of Google Cloud's Agent for SAP

After you have deployed a VM and installed your SAP system, validate that Google Cloud's Agent for SAP is functioning properly.

Verify that Google Cloud's Agent for SAP is running

To verify that the agent is running, follow these steps:

1. Establish an SSH connection with your Compute Engine instance.

2. Run the following command:

   systemctl status google-cloud-sap-agent

   If the agent is functioning properly, then the output contains active (running). For example:

   google-cloud-sap-agent.service - Google Cloud Agent for SAP
   Loaded: loaded (/usr/lib/systemd/system/google-cloud-sap-agent.service; enabled; vendor preset: disabled)
   Active:  active (running)  since Fri 2022-12-02 07:21:42 UTC; 4 days ago
   Main PID: 1337673 (google-cloud-sa)
   Tasks: 9 (limit: 100427)
   Memory: 22.4 M (max: 1.0G limit: 1.0G)
   CGroup: /system.slice/google-cloud-sap-agent.service
          └─1337673 /usr/bin/google-cloud-sap-agent
   

If the agent isn't running, then restart the agent.

Verify that SAP Host Agent is receiving metrics

To verify that the infrastructure metrics are collected by Google Cloud's Agent for SAP and sent correctly to the SAP Host Agent, follow these steps:

1. In your SAP system, enter transaction ST06.

2. In the overview pane, check the availability and content of the following fields for the correct end-to-end setup of the SAP and Google monitoring infrastructure:

   • Cloud Provider: Google Cloud Platform
   • Enhanced Monitoring Access: TRUE
   • Enhanced Monitoring Details: ACTIVE

Performing post-deployment tasks

Before using your SAP ASE instance, we recommend that you perform the following post-deployment steps:

1. Update your SAP ASE software with the latest patches, if available.
2. Install any additional components.
3. Configure and back up your new SAP ASE database.

For additional post-deployment guidance, see the Post-installation Tasks section of the SAP ASE Installation and Upgrade Guide for Linux.

Troubleshooting

This section contains information about how to correct common issues.

Troubleshooting connecting to your VM

If you are having issues connecting to your VM through SSH, then make sure that you have created a firewall rule to open port 22 on the Google Cloud network you are using.

For other possible issues, see Known issues for SSH from the browser.