> For the complete documentation index, see [llms.txt](https://docs.tessell.com/tessell/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tessell.com/tessell/faq/cloud-platforms/aws/fsx-for-netapp-ontap/multi-az-ha-database-fsx-netapp-ontap.md).

# Multi-AZ HA Database using AWS FSx for NetApp ONTAP

Tessell offers high availability (HA) through database-level replication, ensuring transactional integrity and application consistency. Multi-AZ high availability for database services is achieved by deploying database instances with separate file systems across different Availability Zones (AZs).

Follow these high-level steps to create a Multi-AZ HA database using FSx for NetApp ONTAP (FSxN) in Tessell:

1. **File System Creation in AWS:** Create independent Single-AZ FSxN file systems in different Availability Zones (AZs) as needed. For detailed guidelines on creating FSxN file systems, refer to the [Step-by-Step Guide: Provisioning a Database with Amazon FSx for NetApp ONTAP](/tessell/faq/cloud-platforms/aws/fsx-for-netapp-ontap/provisioning-database-fsx-netapp-ontap.md).
2. **Provision Multi-AZ HA Database in Tessell:** During database provisioning, select the FSxN file systems for both the primary and secondary instances. Tessell will set up database-level replication between the instances, ensuring high availability across AZs.

***

**Related articles:**

* [Step-by-Step Guide: Provisioning a Database with Amazon FSx for NetApp ONTAP](/tessell/faq/cloud-platforms/aws/fsx-for-netapp-ontap/provisioning-database-fsx-netapp-ontap.md)
* [Application-Consistent Snapshot with AWS FSx for NetApp ONTAP](/tessell/faq/cloud-platforms/aws/fsx-for-netapp-ontap/application-consistent-snapshot-fsx-netapp-ontap.md)


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