How to Configure Hyper V Replication in Windows Server

[@akhilpajith]

if i configure DHCP in AD Server how to do the fail over if i configure a replica server in vm in another physical machine. please answer this requesting

[@Liv4IT]

To configure failover for a DHCP server in Hyper-V, you can use the DHCP failover feature built into Windows Server. This allows two DHCP servers to share lease information and provide high availability. Here's how to set it up: ### Prerequisites: 1. **Two Windows Servers**: Both should have the DHCP Server role installed and authorized. 2. **Administrative Privileges**: Ensure you have the necessary permissions to configure DHCP. ### Steps to Configure DHCP Failover: 1. **Install the DHCP Server Role**: - On both servers, open Server Manager. - Navigate to `Manage` > `Add Roles and Features`. - Follow the wizard to install the DHCP Server role. 2. **Authorize the DHCP Servers**: - Open the DHCP Management Console (`dhcpmgmt.msc`). - Right-click on the DHCP server name and select `Authorize`. 3. **Create a DHCP Scope**: - On the primary DHCP server, open the DHCP Management Console. - Right-click on `IPv4` and select `New Scope`. - Follow the wizard to create a new scope. 4. **Configure Failover**: - In the DHCP Management Console on the primary server, expand `IPv4`. - Right-click the scope you want to configure for failover and select `Configure Failover`. - In the wizard, select the scopes you want to include in the failover configuration and click `Next`. - On the `Specify Partner Server` page, enter the name or IP address of the partner DHCP server and click `Next`. - Configure the `Mode` (Load balance or Hot standby), `Maximum Client Lead Time (MCLT)`, `State Switchover Interval`, and other settings as needed. Click `Next`. - Review the settings and click `Finish`. 5. **Verify Failover Configuration**: - After the wizard completes, you should see the failover relationship in the DHCP Management Console under `IPv4` > `Failover`.

[@faizfaiz5609]

Do we need to join server in domain again on replica server.

[@Liv4IT]

No I don't think so

[@truongtrannhat6198]

can hyperv2 auto start when server first shutdown pls

[@Liv4IT]

No for that u must configure HA (high availability)

[@trannhatduong7719]

​@@Liv4ITyes, have you any instruct for HA? Thanks

[@Liv4IT]

@@trannhatduong7719 High availability (HA) in Microsoft Hyper-V is a feature that ensures virtual machines (VMs) remain accessible even in the event of hardware or software failures. This is achieved by replicating VMs across multiple Hyper-V hosts. Here's how to set up high availability in Microsoft Hyper-V: Prerequisites: You need at least two physical Hyper-V hosts (servers) running Windows Server with Hyper-V enabled. These hosts should be part of an Active Directory domain for centralized management. You should have shared storage like a SAN (Storage Area Network) or an SMB file share that is accessible from both hosts. Failover Clustering: To enable high availability, you need to create a Windows Failover Cluster. This is the foundation of HA in Hyper-V. On each Hyper-V host, install the Failover Clustering feature. Configure Shared Storage: Your shared storage should be set up and accessible from both hosts. This is where the VM configuration files and virtual hard disks will be stored. Create a Failover Cluster: Open the "Failover Cluster Manager" on one of the Hyper-V hosts. Click on "Create Cluster" and follow the wizard to add both Hyper-V hosts to the cluster. Verify that the validation tests are passed before creating the cluster. Enable Hyper-V Role: Once the cluster is created, you need to enable the Hyper-V role on both hosts if it's not already enabled. Install Hyper-V Manager on a management computer to manage the Hyper-V cluster. Create Highly Available VMs: Using Hyper-V Manager or PowerShell, create new VMs or configure existing ones to be highly available. When creating a VM, select the cluster as the destination. Configure VM Settings: For each VM, configure settings like memory, CPU, network adapters, and storage. Ensure that the VM files and virtual hard disks are stored on the shared storage. Test Failover: It's essential to test the failover to ensure your setup works as expected. This involves simulating a failure and verifying that VMs automatically fail over to another host. Monitoring and Management: Use the Failover Cluster Manager to monitor the status of the cluster and VMs. You can also configure settings like preferred owner, failover priorities, and heartbeat settings to fine-tune the behavior of the cluster. Regular Maintenance and Updates: Keep both hosts up to date with the latest patches and updates. Periodically test failovers and review cluster event logs to ensure everything is running smoothly. Remember that high availability is not a substitute for a backup strategy. You should still have regular backups of your VMs to protect against data loss or corruption. High availability is more about minimizing downtime due to hardware or software failures. Please note that setting up high availability in Hyper-V can be complex, and this is a high-level overview. Be sure to consult Microsoft's official documentation or consider involving a professional with experience in Hyper-V and failover clustering for a production environment.

[@trannhatduong7719]

@@Liv4IT thanksgivings