Sure, here is the technical description of the process of using Storage vMotion to migrate virtual machines from one datastore to another under vSphere:
1. First, ensure that the vSphere environment is properly configured with multiple datastores that can be used for migration.
1. Identify the virtual machine that needs to be migrated and ensure that it is powered off, or else Storage vMotion will not be able to move the virtual machine.
1. Start the Storage vMotion process by right-clicking on the selected virtual machine and selecting the Migrate option. This will open the vSphere vMotion wizard.
1. In the vMotion wizard, select the desired datastore as the destination for the virtual machine. This can be done either by selecting an existing datastore or creating a new one.
1. Configure any advanced options as necessary, such as selecting the migration type (thick or thin provisioned) or change block tracking.
1. Review the summary page to ensure that all selected options are correct and make any necessary changes.
1. Start the migration process by clicking Finish in the vMotion wizard.
1. Monitor the progress of the Storage vMotion migration through the vSphere Web Client or vSphere client until it completes.
1. Once the migration is complete, verify that the virtual machine is running and functioning properly on the new datastore.
In summary, Storage vMotion is a process that allows virtual machines to be migrated from one datastore to another without taking them offline. This process is initiated through a wizard in the vSphere client or vSphere Web Client and involves selecting the new datastore as the target, configuring any advanced options, and then monitoring the process as it completes. Once the migration is complete, the virtual machine should be running on the new datastore without interruption.
