VMware vSphere 7.0 Update 1c Build 17325551: Cross-vCenter Workload Migration Made Easy
As a follow-up to my previous article on Kubernetes storage concepts, I would like to discuss another exciting feature from VMware – cross-vCenter workload migration. This feature allows you to migrate your workloads between different vCenters, making it easier to manage and optimize your VMware environment.
Background and History of Cross-vCenter Migration
The idea of cross-vCenter migration has been around for a long time, dating back to the early 2010s when VMware first introduced the concept of vSphere replication. At that time, there was a powercli script available that allowed you to migrate workloads between different vCenters. However, this feature was not officially supported and was considered an experimental feature.
Over the years, the technology behind cross-vCenter migration has evolved significantly. In 2015, VMware introduced vSphere 6.0, which included a new feature called “Cross-vCenter Workload Migration.” This feature allowed you to migrate workloads between different vCenters using a new utility called the Cross-vCenter Workload Migration Utility.
Fast forward to 2020, VMware released vSphere 7.0 Update 1c Build 17325551, which officially supports cross-vCenter workload migration. This feature is now a part of the vSphere API and can be used with any version of vSphere from 6.0 to 7.0.
How Does Cross-vCenter Migration Work?
To migrate a workload between different vCenters, you will need to follow these steps:
1. Plan the migration: Before you start the migration process, you need to plan the migration carefully. This includes selecting the right source and destination vCenters, choosing the right migration method, and ensuring that the destination vCenter has enough resources to host the migrated workload.
2. Prepare the source vCenter: Once you have planned the migration, you need to prepare the source vCenter for the migration process. This includes powering on the source virtual machines, updating any configuration settings, and ensuring that the source virtual machines are in a stable state.
3. Migrate the workload: After preparing the source vCenter, you can start the migration process. There are two methods to migrate workloads between different vCenters – quick migration and advanced migration. Quick migration is recommended for small workloads, while advanced migration is recommended for larger workloads or for workloads with complex dependencies.
4. Verify the migration: After completing the migration process, you need to verify that the workload has been successfully migrated to the destination vCenter. This includes verifying that the virtual machines are powered on and accessible from the destination vCenter.
Benefits of Cross-vCenter Migration
Cross-vCenter migration offers several benefits, including:
1. Flexibility: With cross-vCenter migration, you can move your workloads between different vCenters as needed, providing more flexibility in managing your VMware environment.
2. Scalability: Cross-vCenter migration allows you to scale your environment more easily by moving workloads between different vCenters based on resource availability and demand.
3. High availability: By migrating workloads between different vCenters, you can ensure higher availability for your applications and services.
4. Disaster recovery: Cross-vCenter migration can also be used for disaster recovery purposes, allowing you to move your workloads to a different vCenter in case of an outage or disaster.
Conclusion
Cross-vCenter workload migration is a powerful feature that allows you to move your workloads between different vCenters, providing more flexibility, scalability, high availability, and disaster recovery capabilities for your VMware environment. With the official support of this feature in vSphere 7.0 Update 1c Build 17325551, you can now migrate your workloads with confidence, knowing that the process is supported by VMware.