Quickstart: Back up SAP HANA System Replication on Azure VMs using Azure CLI
This quickstart describes how to protect SAP HANA System Replication (HSR) using Azure CLI.
SAP HANA databases are critical workloads that require a low recovery-point objective (RPO) and long-term retention. This article describes how you can back up SAP HANA databases that are running on Azure virtual machines (VMs) to an Azure Backup Recovery Services vault by using Azure Backup.
Prerequisites
Before you configure SAP HANA System Replication database backup, review the supported configurations and scenarios.
Create a Recovery Services vault
A Recovery Services vault is a logical container that stores the backup data for each protected resource, such as SAP HANA database data. When the backup job for a protected resource runs, it creates a recovery point in the Recovery Services vault. You can then use one of these recovery points to restore data to a given point in time.
To create a Recovery Services vault, run the following command:
az backup vault create --resource-group hanarghsr2 --name hanavault10 --location westus2
By default, the Recovery Services vault is set for Geo-Redundant storage. Geo-Redundant storage ensures your backup data is replicated to a secondary Azure region that's hundreds of miles away from the primary region. If the storage redundancy setting needs to be modified, use az backup vault backup-properties set cmdlet.
Register and protect SAP HANA running on Azure VM
When a failover occurs, the users are replicated to the new primary, but hdbuserstore isn't replicated. So, you need to create the same key in all nodes of the HSR setup, which allows the Azure Backup service to connect to any new primary node automatically, without any manual intervention.
Follow these steps:
To register and protect the SAP HANA database running on primary Azure VM, run the following command:
az backup container register --resource-group hanarghsr2 --vault-name hanavault10 --workload-type SAPHANA --backup-management-type AzureWorkload --resource-id "/subscriptions/ef4ab5a7-c2c0-4304-af80-af49f48af3d1/resourceGroups/hanarghsr2/providers/Microsoft.Compute/virtualMachines/hsr-primary"To register and protect the SAP HANA database running on secondary Azure VM, run the following command:
az backup container register --resource-group hanarghsr2 --vault-name hanavault10 --workload-type SAPHANA --backup-management-type AzureWorkload --resource-id "/subscriptions/ef4ab5a7-c2c0-4304-af80-af49f48af3d1/resourceGroups/hanarghsr2/providers/Microsoft.Compute/virtualMachines/hsr-secondary"
To identify resource-id, run the following command:
az vm show --name hsr-primary --resource-group hanarghsr2
For example, id is /subscriptions/ef4ab5a7-c2c0-4304-af80-af49f48af3d1/resourceGroups/hanarghsr2/providers/Microsoft.Compute/virtualMachines/hsr-primary.
Check the registration of primary and secondary servers to the vault
To check if primary and secondary servers are registered to the vault, run the following command:
az backup container list --resource-group hanarghsr2 --vault-name hanavault10 --output table --backup-management-type AzureWorkload
Name Friendly Name Resource Group Type Registration Status
----------------------------------------------- --------------- ---------------- ------------- ---------------------
VMAppContainer;Compute;hanarghsr2;hsr-primary hsr-primary hanarghsr2 AzureWorkload Registered
VMAppContainer;Compute;hanarghsr2;hsr-secondary hsr-secondary hanarghsr2 AzureWorkload Registered
View the item list for protection
To check the items that you can protect, run the following command:
az backup protectable-item list --resource-group hanarghsr2 --vault-name hanavault10 --workload-type SAPHANA --output table
pradeep [ ~ ]$ az backup protectable-item list --resource-group hanarghsr2 --vault-name hanavault10 --workload-type SAPHANA --output table
Name Protectable Item Type ParentName ServerName IsProtected
--------------------------------------------------- ----------------------- --------------- ------------- -------------
saphanasystem;arv SAPHanaSystem ARV hsr-primary NotProtected
saphanasystem;arv SAPHanaSystem ARV hsr-secondary NotProtected
hanahsrcontainer;hsrtestps2 HanaHSRContainer HsrTestP2 hsr-primary NotProtected
saphanadatabase;hsrtestps2;arv SAPHanaDatabase HsrTestP2 hsr-primary NotProtected
saphanadatabase;hsrtestps2;2;DB1 SAPHanaDatabase HsrTestP2 hsr-primary NotProtected
saphanadatabase;hsrtestps2;systemdb SAPHanaDatabase HsrTestP2 hsr-primary NotProtected
Rediscover the database
If the database isn't in the item list that can be protected or to rediscover the database, reinitiate discovery on the physical primary VM by running the following command:
az backup protectable-item initialize --resource-group hanarghsr2 --vault-name hanavault10 --container-name "VMAppContainer;Compute;hanarghsr2;hsr-primary" --workload-type SAPHanaDatabase
Enable protection for the database
To enable protection for the database listed under the HSR System with required backup policy, run the following command:
az backup protection enable-for-azurewl --resource-group hanarghsr2 --vault-name hanavault10 --policy-name hanahsr --protectable-item-name "saphanadatabase;hsrtestps2;DB1" --protectable-item-type SAPHanaDatabase --workload-type SAPHanaDatabase --output table --server-name HsrTestP2
az backup protection enable-for-azurewl --resource-group hanarghsr2 --vault-name hanavault10 --policy-name hanahsr --protectable-item-name "saphanadatabase;hsrtestps2;systemdb" --protectable-item-type SAPHanaDatabase --workload-type SAPHanaDatabase --output table --server-name hsr-secondary
Run an on-demand backup
To initiate a backup job manually, run the following command:
az backup protection backup-now --resource-group hanarghsr2 --item-name "saphanadatabase;hsrtestps2;db1" --container-name "hanahsrcontainer;hsrtestp2" --vault-name hanavault10 --backup-type Full --retain-until 01-01-2030 --output table
Name Operation Status Item Name Backup Management Type Start Time UTC Duration
------------------------------------ ------------- ---------- ----------------- ------------------------ -------------------------------- --------------
591f1840-4d6a-4464-8f3a-18e586f11bfc Backup (Full) InProgress ARV [hsr-primary] AzureWorkload 2023-04