How to physically relocate ESXi servers to another site?

Products

• VMware vSAN

Issue/Introduction

To physically relocate ESXi servers to another site, there are several considerations and steps to ensure a smooth transition. This article provides a comprehensive overview of it.

Environment

To physically relocate ESXi hosts from the existing site to a new site. There are some considerations,

• Network configuration: Ensure that network configuration at the new site is compatible with the existing setup. This includes IP address settings, VLANs, firewall settings, etc.
• Storage accessibility: If using shared storage, such as FC storage, network connected storage (iSCSI, NFS), make sure that the storage is still accessible from the new site.
• Licensing: If moving to a new vCenter, check all licensing requirements are met at the new site.

Resolution

Preparation for relocation:

• Backup data: Ensue that all data is backed up. This includes virtual machines, configurations and any critical data stored on the ESXi hosts
• Document current configuration: Record current configuration of network settings, storage configurations, and any specific settings that may need to be replicated at the new site.
• Plan to move: Ensure that the new site has the necessary infrastructure to support the ESXi hosts, including power and cooling requirements.

Steps for physical relocation:

1. Power off all virtual machines
   Before moving, power off all virtual machines running on the ESXi hosts.
2. Put hosts in maintenance mode
   Put all hosts in maintenance mode to ensure no VM is running during the move.
3. Shutdown all the hosts
   Shutdown the hosts and unpack all cabling, such as power cords, network cables, storage cables, etc.
4. Physically move the hardware
   Carefully transport the ESXi servers to the new site. Ensure avoid any physical damage.
5. Set up at the new site
   Once at the new site, connect the servers to the power supply and network.
6. Power on the hosts
   Power on the hosts and ensure that the network / storage settings are well configured to match the new environment. Test network and storage connectivity.
7. Reconnect to vCenter
   Reconnect ESXi server to the vCenter and carefully check the alerts if any.
8. Exit maintenance mode
   After everything is set up, exit maintenance mode.
9. Power on virtual machines
   Power on virtual machines one by one to test connectivity and functionality.