We all know the joy we experienced when we performed our first vMotion , We saw the magic that transformed the IT world. We all know that vMotion was until now possible only within your vCenter system. Now we can perform vMotion across vCenter sytems ie you can migrate from your windows vCenter to vCSA or vice versa, even across two Datacenters ie we can now migrate across two geographical locations, I will now provide the detailed description of vSphere concepts, new enhancements in this latest version 6 of our hypervisor
VMware vSphere Hypervisor 6.0 has once again enhanced Scalability. Clusters now can scale to as many as 64 hosts, up from 32 in previous releases. With 64 hosts in a cluster, vSphere 6.0 can support 8,000 virtual machines in a single cluster. Each Hypervisor instance can support as many as 480 logical CPUs(vCPUs), 12TB of RAM, and 1,024 virtual machines. ESXi 6.0 also enables the virtualization of applications using latest VM Hardware version.
Long Distance vMotion
Ideally during a vMotion until now only Compute and Storage resources were able to change seamlessly across two differenr ESXi Hosts in your vCenter, But now we not only perform live migration of our Compute and Storage resources but also maintain the same Network Settings across vCenters and Management resources ie vCenter can be successfully migrated.
How does this work?
Every VM has its own MAC address , When a VM is migrated across vCenter Server instances, the MAC address is added to an internal blacklist to ensure that a duplicate MAC is not generated.Therefore it preserves the identity of VM across your Datacenters. When a virtual machine is migrated across vCenter Server instances, its data and settings are preserved. This includes the virtual machine UUID, event, alarm, task history, as well as resource settings including shares, reservations, and limits.
Therefore from now VM is able to change Compute resources, Storage resources, virtual machine network, and vCenter Server instance without disrupting applications that resides on the virtual machine, Datacenter maintenance , load balancing Datacenters , Disaster avoidance etc can be the new use cases.
This is a new feature that centrally manages virtual machine templates, ISO images, and scripts across vCenters and Datacenters. This makes Enterprise share their content very easy. These Contents can be “published to” or “subscribed from” different vCenters. However the synchronization of these Libraries must be initiated manually, depending on the WAN connectivity they should sync content across different location.
Virtual Volumes (vVols)
This is a new technology in vStorage and it is changes completely the way we provision and consume storage , With vVols the storage architecture has been altered now we can enable operations to be conducted at the VM level. Most data operations are offloaded to storage arrays.
Storage Policy–Based Management (SPBM) provides an orchestration and automation engine that translates the storage requirements expressed in a virtual machine storage policy into virtual machine granular provisioning capabilities with dynamic resource allocation and management of storage-related services.
NVIDIA GRID vGPU
Finally the integration of NVIDIA GRID vGPU with VMWare Horizon 6.1 and vSphere 6, This provides capabilities of high end 3D and graphics support for VM’s.
Here below image details how a physical graphics card can be consolidated and provided as separate vGPU cards for Virtual dektops running in Horizon View.
vSphere is sold as both a standalone product and along with vRealize Operations Manager called vSOM. The below image clearly shows different types of licenses and their features , Also these are licensed per processor . How ever the new vSphere ROBO kit allows unlimited processor but supports only maximum of 25 VM’s.
ROBO or Remote Office Branch Office is ideal for managing a small clusters of Hosts in Branch offices .
Let us now look at the other integrated features of our Hypervisor , We will discuss about different Business Continuity products like vSphere Data Protection, vSphere Replication. Site Recovery Manager will be covered in a separate section.