Services

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Data Backup & Disaster Recovery from Azure

How it works

Component Benefits Limits What is protected? Where are backups stored?
Azure Backup (MARS) agent
  • Back up files and folders on physical or virtual Windows OS (VMs can be on-premises or in Azure)
  • No separate backup server required.
  • Backup 3x per day
  • Not application aware; file, folder, and volume-level restore only,
  • No support for Linux.
  • Files,
  • Folders,
  • System State
 Recovery Services vault
Azure Backup Server
  • Application-aware snapshots (VSS)
  • Full flexibility for when to take backups
  • Recovery granularity (all)
  • Can use Recovery Services vault
  • Linux support on Hyper-V and VMware VMs
  • Backup and restore VMware VMs
  • Cannot back up Oracle workload.
  • Always requires live Azure subscription
  • No support for tape backup
  • Files,
  • Folders,
  • Volumes,
  • VMs,
  • Applications,
  • Workloads,
  • System State
  • Recovery Services vault,
  • Locally attached disk
Azure IaaS VM Backup
  • Application-aware snapshots (VSS)
  • Native backups for Windows/Linux
  • No specific agent installation required
  • Fabric-level backup with no backup infrastructure needed
  • Back up VMs once-a-day
  • Restore VMs only at disk level
  • Cannot back up on-premises
  • VMs,
  • All disks (using PowerShell)
 Recovery Services vault
Component Azure Backup (MARS) agent
Benefits
  • Back up files and folders on physical or virtual Windows OS (VMs can be on-premises or in Azure)
  • No separate backup server required.
Limits
  • Backup 3x per day
  • Not application aware; file, folder, and volume-level restore only,
  • No support for Linux.
What is protected?
  • Files,
  • Folders,
  • System State
Where are backups stored? Recovery Services vault
Component Azure Backup Server
Benefits
  • Application-aware snapshots (VSS)
  • Full flexibility for when to take backups
  • Recovery granularity (all)
  • Can use Recovery Services vault
  • Linux support on Hyper-V and VMware VMs
  • Backup and restore VMware VMs
Limits
  • Cannot back up Oracle workload.
  • Always requires live Azure subscription
  • No support for tape backup
What is protected?
  • Files,
  • Folders,
  • Volumes,
  • VMs,
  • Applications,
  • Workloads,
  • System State
Where are backups stored?
  • Recovery Services vault,
  • Locally attached disk
Component Azure IaaS VM Backup
Benefits
  • Application-aware snapshots (VSS)
  • Native backups for Windows/Linux
  • No specific agent installation required
  • Fabric-level backup with no backup infrastructure needed
Limits
  • Back up VMs once-a-day
  • Restore VMs only at disk level
  • Cannot back up on-premises
What is protected?
  • VMs,
  • All disks (using PowerShell)
Where are backups stored? Recovery Services vault
Reference Architecture

Azure backup agent

Below is the reference architecture for Azure backup agent.

  1. Create recovery service vault in an active Azure subscription
  2. Download backup agent and vault credential.
  3. (a) Install azure backup agent and (b)register backup agent with recovery services vault
  4. Perform backup.

Azure Backup Server

Below is the reference architecture for Azure backup server.

  1. Azure backup server needs to be installed on a Window Server domain joined machine.
  2. Recommended hardware: 2 cores and 4 GB RAM
  3. Minimum O.S -Windows Server 2012 and latest SPs

Machine needs to have internet connection to communicate with Microsoft Azure.