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docs/linux/sql-server-linux-deploy-pacemaker-cluster.md

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title: Deploy a Pacemaker cluster for SQL Server on Linux | Microsoft Docs
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description:
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description: How to configure SQL Server and Pacemaker to deploy availability groups and failover cluster instances on Linux.
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author: MikeRayMSFT
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ms.author: mikeray
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manager: jhubbard
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```bash
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sudo subscription-manager list --available
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3. Run the following command to associate RHEL high availability with the subscription.
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3. Run the following command to associate RHEL high availability with the subscription
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```bash
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sudo subscription-manager attach --pool=<PoolID>
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**RHEL**
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1. Authorize the nodes.
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1. Authorize the nodes
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```bash
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sudo pcs cluster auth <Node1 Node2 … NodeN> -u hacluster

docs/linux/sql-server-linux-ha-basics.md

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- [SLES](https://www.suse.com/documentation/sle-ha-12/singlehtml/book_sleha/book_sleha.html)
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### Install [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] packages for availability
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On a Windows-based [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] installation, some components are installed even in a basic engine install, while others are not. Under Linux, only the [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] engine is installed as part of the installation process. Everything else is optional. For highly available [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] instances under Linux, two packages should be installed at the same time as [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)]: [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent (*mssql-server-agent*) and the high availability (HA) package (*mssql-server-ha*). While [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is technically optional, it is [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)]’s scheduler for jobs and is required by log shipping, so installation is recommended. On Windows-based installations, [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is not optional.
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On a Windows-based [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] installation, some components are installed even in a basic engine install, while others are not. Under Linux, only the [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] engine is installed as part of the installation process. Everything else is optional. For highly available [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] instances under Linux, two packages should be installed with [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)]: [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent (*mssql-server-agent*) and the high availability (HA) package (*mssql-server-ha*). While [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is technically optional, it is [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)]’s scheduler for jobs and is required by log shipping, so installation is recommended. On Windows-based installations, [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is not optional.
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>[!NOTE]
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>For those new to [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)], [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)]’s built-in job scheduler. It is a common way for DBAs to schedule things like backups and other [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] maintenance. Unlike a Windows-based installation of [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] where [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent is a completely different service, on Linux, [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] Agent runs in context of [!INCLUDE[ssnoversion-md](../includes/ssnoversion-md.md)] itself.

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