![]() Self-built automated backup process (copying a part of the Data Lake data to a secondary location).The Data Lake Backup Strategy uses a combination of techniques and features to get the best functionality and performance for an acceptable cost: That is why we need to take additional measures, described in this Data Lake Backup Strategy. This redundancy however does not mean the Data Lake is protected against data failures like corruption or accidental deletion. This redundancy ensures that your storage account meets its availability and durability targets even in the face of such failures. The Data Lake uses Azure Storage, which stores multiple copies of the data so that it is protected from planned and unplanned events, including transient hardware failures, network or power outages, and massive natural disasters. How about the High Availability features? It uses native Azure services, no additional tools, software, or licenses are required. This strategy works for Data Lake as well as Data Lakehouse implementations. In this blog post, I provide a backup strategy on how to further protect your data from accidental deletions, data corruption, or any other data failures. This ensures durability and high availability. Therefore, the data in your Data Lake(house) is resilient to transient hardware failures within a datacenter through automated replicas. For more information see Virtual Machine Reliability.Out of the box, Azure Data Lake Storage Gen2 provides redundant storage. You can also plan and implement reliability for your virtual machine configuration. You can try out Azure Backup by following the Azure Backup quickstart. Learn more about working with VM restore points and the restore point collections API. To restore a VM, restore all relevant disks and attach them to a new VM. Once created, VM restore points can then be used to restore individual disks. To save space and costs, you can exclude any disk from your VM restore points. Each restore point stores a VM's configuration and a snapshot for each attached managed disk. The restore point collection itself contains individual restore points for specific VMs. You can use the API to create a VM restore point collection. This approach is most often used by independent software vendor (ISVs) or organizations with a relatively small number of VMs to manage. Create copy of VHD stored as a Managed DiskĪt this time, you can use Azure REST APIs to back up and restore your VMs.For example, if you create a snapshot of a managed disk with provisioned capacity of 64 GB and actual used data size of 10 GB, snapshot will be billed only for the used data size of 10 GB.įor more information on creating snapshots, see: They're billed based on the used portion of the disk. Snapshots can be used to create new managed disks when a VM is rebuilt. Snapshots exist independently of their source disks. A managed snapshot is a full, read-only copy of a managed disk. In development and test environments, snapshots provide a quick and simple option for backing up VMs that use managed disks. You can get started by replicating your virtual machines. ![]() The recovery plan feature is integrated with Azure Automation runbooks. Create recovery plans to orchestrate failover and failback of the entire application running on multiple VMs. You can run disaster-recovery drills with on-demand test failovers, without affecting your production workloads or ongoing replication. You can replicate to an Azure region of your choice, since recovery isn't restricted to paired regions. You can configure Azure Site Recovery for your VMs so that your applications are recoverable in matter of minutes with a single click. These scenarios may include widespread service interruptions or regional outages caused by natural disasters. When you restore from a recovery point, you can restore entire VM or specific files.įor a simple, hands-on introduction to Azure Backup for Azure VMs, see the Azure Backup quickstart.įor more information on how Azure Backup works, see Plan your VM backup infrastructure in Azure Azure Site RecoveryĪzure Site Recovery protects your VMs from a major disaster scenario. Azure Backup creates recovery points that are stored in geo-redundant recovery vaults. Azure Backup supports application-consistent backups for both Windows and Linux VMs. You'll use Azure Backup for most use-cases involving backup operations on Azure VMs running production workloads. There are several backup options available for virtual machines (VMs), depending on your use-case. You can protect your data by taking backups at regular intervals. Applies to: ✔️ Linux VMs ✔️ Windows VMs ✔️ Flexible scale sets
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