# Setting up Compose on a Windows HA cluster

This section describes how to set up Compose in a Windows Server High Availability Cluster environment. For instructions on how to set up a Windows clustering environment, refer to the Microsoft Help.

Warning note

When building failover cluster solutions with Compose using Windows Server Failover Cluster (WSFC) or a Linux failover cluster software, Qlik recommends using a block device (physical, virtual or iSCSI-based) for the shared Compose DATA folder. Using NFS or SMB-based storage is not supported due to the associated latency which could greatly degrade the data transfer performance, as well as due to reduced reliability and compatibility issues. When building a cloud-based high availability solution that needs to span different availability zones, it is recommended to use a Storage-as-a-Service solution that can handle the block-level replication of the storage and that is integrated with the chosen failover clustering software.

Information noteAll commands described in this section must be run as administrator.

In this section:

* [Step 1: Installing Compose in the cluster](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Setting%20Up%20Compose%20on%20a%20Windows%20HA%20Cluster/DW_HA_Basic%20Installation.htm)
* [Step 2: Adding the Compose service](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Setting%20Up%20Compose%20on%20a%20Windows%20HA%20Cluster/DW_HA_Adding%20the%20Attunity%20Compose%20Service.htm)
* [Step 3: Defining the service dependencies](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Setting%20Up%20Compose%20on%20a%20Windows%20HA%20Cluster/DW_HA_Defining%20the%20Dependencies%20for%20Each%20Service.htm)
* [Step 4: Defining the URL for the cluster](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Setting%20Up%20Compose%20on%20a%20Windows%20HA%20Cluster/DW_HA_Defining%20the%20Compose%20UI%20URL.htm)
* [Upgrading Compose on the cluster](https://help.qlik.com/en-US/compose/December2024/Content/ComposeDWDL/Main/DW/Setting%20Up%20Compose%20on%20a%20Windows%20HA%20Cluster/DW_HA_Upgrading%20Compose%20on%20a%20Windows%20Cluster%20%28HA%29.htm)