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NetWeaver-DB2-Standard

This stack builds a single node SAP application instance with DB2.

Architecture Diagram

NetWeaver-DB2-Standard

Prerequisites

Infrastructure

If not using the provided Terraform, the following infrastructure components must exist.

Application server

One application server machine is required.

Disks

Four disks must be created and attached to the application server machine.

db2 - This disk will contain one logical volume to be mounted on /db2. Attach the disk to the machine with a device_name of db2 to use the value Ansible uses for it by default.

usrsap - This disk will contain one logical volume to be mounted on /usr/sap. Attach the disk to the machine with a device_name of usrsap to use the value Ansible uses for it by default.

sapmnt - This disk will contain one logical volume to be used for /sapmnt. Attach the disk to the machine with a device_name of sapmnt to use the value Ansible uses for it by default.

swap - This disk will contain one logical volume to be used for swap. Attach the disk to the machine with a device_name of swap to use the value Ansible uses for it by default.

Inventory

If using Terraform and Ansible together, the inventory is automatically generated. If using Ansible separately from or without Terraform, the inventory must be defined as shown.

Inventory groups

The following inventory groups must be defined containing the hosts described below. You can choose your own names for the groups.

  • SAP application group
    • 1 host

Examples

INI format:

[sap]
abcabap

YAML format:

all:
  children:
    sap:
      hosts:
        abcabap:

Install Media

See the instructions for uploading install media to your bucket.

Variables

Variables related to Terraform

The following variables are only used when Terraform and Ansible are run together.

Name Description Type Default Required
sap_nw_instance_type The GCE instance type for NetWeaver or S4HANA instances. string n1-standard-8 no
sap_nw_service_account_name The name of the service account assigned to NetWeaver or S4HANA instances. This should not be a full service account email, just the name before the @ symbol. string sap-common-sa no
sap_nw_subnetwork The name of the subnetwork used for machines and load balancers. string n/a yes
sap_project_id The project ID where instances are located. string n/a yes
sap_subnetwork_project_id The name of the subnetwork project, if using a shared VPC. If not given, sap_project_id will be used. string value of sap_project_id no
sap_source_image_family The source image family for machines. string n/a yes
sap_source_image_project The project for the source image. Official SAP images are from rhel-sap-cloud for RedHat or suse-sap-cloud for Suse. string n/a yes
sap_tf_state_bucket The GCS bucket where Terraform state is stored. If it does not exist, it will be created. There can only be one bucket globally with a given name (it gets a global DNS name). If there is a permissions error when creating this bucket, it is likely that one already exists in another project with the same name. Note that the pair sap_tf_state_bucket, sap_tf_state_bucket_prefix must be unique to avoid conflicts with other stacks. string n/a yes
sap_tf_state_bucket_prefix This is the prefix for the Terraform state within the bucket defined in sap_tf_state_bucket. Note that the pair sap_tf_state_bucket, sap_tf_state_bucket_prefix must be unique to avoid conflicts with other stacks. string n/a yes
sap_zone The zone where machines are located, for example us-central1-a. string n/a yes

Additional Variables

The following variables are used with and without Terraform.

Name Description Type Default Required
sap_db2_product_version The DB2 version. string 11.5MP5FP1 no
sap_nw_ascs_instance_number Instance number for ASCS. This is a two digit number that must be in quotes, or Ansible will convert it into single digits, for example 00 without surrounding quotes gets converted to the number 0. string 00 no
sap_nw_ascs_install_gateway Whether or not to install the gateway on the ASCS node. bool false no
sap_nw_ascs_install_web_dispatcher Whether or not to install the web dispatcher on the ASCS node. bool false no
sap_nw_ascs_virtual_host The hostname used to access ASCS. string value of ansible_hostname on the application machine no
sap_nw_db_sid The database tenant system ID for NetWeaver. This is a three character uppercase string which may include digits but must start with a letter. string value of sap_nw_sid no
sap_nw_install_files_bucket Bucket where application install media is located. string n/a yes
sap_nw_instance_name The name of the application instance. string n/a yes
sap_nw_password The password for NetWeaver or S4HANA. string n/a yes
sap_nw_pas_instance_number Instance number for PAS. This is a two digit number that must be in quotes, or Ansible will convert it into single digits, for example 00 without surrounding quotes gets converted to the number 0. string 01 no
sap_nw_pas_virtual_host The hostname used to access PAS. string value of ansible_hostname on the application machine no
sap_nw_sid The System ID for NetWeaver. This is a three character uppercase string which may include digits but must start with a letter. string n/a yes
sap_nw_product The SAP product, for example NetWeaver, S4HANA, or BW4HANA. string NetWeaver no
sap_nw_product_version The SAP product version, defaults to a version for NetWeaver. string 750 no