Long answer FT is limited to the same cluster and vCenter.

250 Mbps per vSphere vMotion operation. I had the same issue as the vmotion network now needs to be routed for cross vCenter vmotion to work. This utility allows users to easily migrate virtual machines in bulk from a graphical user interface between vCenter servers using the Cross-vCenter vMotion feature. This post is also available in: Italian Reading Time: 6 minutes As written in a previous post, the new VMware vSphere 6.0 introduce several enhancements in the vMotion by adding more VM mobility. VMware Cross vCenter vMotion ist eine neue vMotion-Funktion in vSphere 6 und ermöglicht die VM-Migration über vCenter-Server-Instanzen hinweg.

Network Port Requirements.
vMotion Across vCenters. Physical Adapter Configuration. VMware vSphere 5.1 and later versions combine standard vMotion with VMware vSphere Storage vMotion in a single migration. Automating Cross vCenter vMotion (xVC-vMotion) between the same & different SSO Domain 05/26/2016 by William Lam 77 Comments In the last couple of months, I have noticed an increase in customer interests in using the Cross vCenter vMotion (xVC-vMotion) capability that was introduced back in vSphere 6.0. Use at least one 10 GbE adapter if you migrate workloads that have many memory operations. Encrypted vMotion depends on host configuration, or on compatibility between the source and destination hosts. vMotion across vCenter server allows you to simultaneously change the Compute, Storage, Networks and management.

Use at least one 1 GbE adapter for workloads that have a small number of memory operations. vMotion can transfer the active memory and precise execution state of the virtual machine over a high-speed network, allowing it to switch from running on the source vSphere host to the destination vSphere host. Key Features. vSphere 6.5 allows the network traffic with vMotion to be encrypted. One of the limitations in using cross vCenter vMotion by way of the Web Client is that it can’t migrate VMs between SSO domains. As such, the vmotion network can be a non-routable network as there is normally Layer-2 network connectivity between the vmotion vmkernel interfaces between the ESXi hosts. You must ensure that the vMotion network has at least 250 Mbps of dedicated bandwidth per concurrent vMotion session.

For more information, see the VirtualMachineRelocateSpec section in the vSphere Management SDK Guide. Beginning with vSphere 6.5, vMotion supports encrypted virtual machines. Dedicate at least one adapter for vMotion. vSphere 6 also introduces support for Cross vCenter vMotion. Prior to vSphere 6.0, we were not allowed to perform the live migration between the vSphere Distributed Switches.It was only limited within the dvswitch. The round-trip time between hosts can take up to 150 milliseconds. You can now perform reliable migrations between hosts and sites that are separated by high network round-trip latency times (150 milliseconds or less, between hosts). Both vCenter Server instances need to be in Enhanced Linked Mode and on the same single sign-on domain. 5 Core Requirements for Cross vCenter Migrations. There is another way to go on about handling such migration which is usually a little more obscure; Cross-vCenter vMotion in same/different SSO domains. The cross vCenter Server and long distance vMotion features require an Enterprise Plus license. vMotion keeps the transfer period imperceptible to … After vSphere 6.0, vMotion is allowed across vSwitches and even vCenter Servers.
For example, a vMotion operation from vCenter Server 6.0 to vCenter Server 6.5, and vice versa are not supported. Requirements for Concurrent vMotion Migrations. FT requires both side to confirm an instruction and write before going forward introducing any latency in this process would simply kill the performance of the machine. This operation will change compute, storage, network and vCenter . However, it is important to note that if a disk is not encrypted, Storage vMotion will not encrypt the disk during transfer. VMware vSphere 6.0 adds functionality to migrate virtual machines over long distances.

Several requirements must be in place for the VM to migrate across vCenters. As you can see, vSphere 6.0 and vSphere 6.5 were big releases when it comes to VMware vMotion. If the long distance vMotion seems the big news, in my opinion the best and most amazing news is the cross vCenter vMotion (that could also be a long distance vMotion, but not necessary).