# Disaster recovery

Subsalt's system supports comprehensive disaster recovery strategies for restoring availability and data in the event of an unexpected outage or data loss/corruption.

#### Data replication

Subsalt leverages your cloud provider's block storage solution(s) for persisting data, which often have built-in resilience options available.

#### Automated back-ups

Subsalt supports each cloud provider's recommended automated Kubernetes backup solution to protect against scenarios where entire clusters are destroyed. These managed solutions provide automated, periodic backups of persistent storage to an out-of-cluster location that can be restored as needed. Recommended back-up solutions include:

* [Backup for GKE](https://cloud.google.com/kubernetes-engine/docs/add-on/backup-for-gke/concepts/backup-for-gke) on Google Cloud
* [Azure Kubernetes Service Backup](https://learn.microsoft.com/en-us/azure/backup/azure-kubernetes-service-backup-overview) on Azure
* [EKS Backup using Velero](https://aws.amazon.com/blogs/containers/backup-and-restore-your-amazon-eks-cluster-resources-using-velero/) on AWS

Third-party tools like [backy2](https://backy2.com/), [restic](https://restic.net/), and [Velero](https://velero.io/) that support filesystem-level backups are compatible with Subsalt installations as well.

#### Velero

For AKS deployments, Subsalt also supports [Velero](https://velero.io/) for backup and restore. Velero captures Kubernetes resources and persistent volume data, storing them in Azure Blob Storage. It authenticates using Azure Workload Identity, eliminating the need for static credentials in the cluster.

See the Velero backup and restore page for setup and usage details.


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