In the last newsletter, we have just discussed some of the longstanding policies underlying cloud computing. We also discussed some concepts a bit fresher, as the dynamic movement of virtual machines (VM). In this newsletter we will discuss how the concept of dynamically move virtual machines makes us lose sleep.
There is no doubt that the capacity is dynamically move virtual machines between physical servers with either a LAN or WAN extremely powerful because it allows the IT organization to:
Optimizing IT resources for maximum utilization, flexibility and availability.
Let’s Make It organizations hardware maintenance without scheduled downtime.
Improved performance by moving virtual machines from failing or underperforming servers.
There is no doubt that it is extremely difficult to dynamically move servers between physical servers, partly because it is not the virtual machine to move. As part of migrating a VM from one server to another, IT organizations to ensure that reservations VM migrates to the same security, storage, access and quality of service and political configurations as before. If some form of load balancing server is carried out is another challenge to ensure that the load balancer server for the fact that one or more virtual machines were moved account. If an application is the firewall virtual machine to protect against the move, a balanced application firewall should be in place to protect the virtual machine once it has migrated. If an organization is implementing specific logging and / or verification as a means of PCI compliance, so the feature to migrate along the VM that the application would be the host.
As already mentioned, which moves on a virtual machine from one physical server to another, all the necessary functions, it is extremely difficult to follow. The only way this will happen, if not all, is over the next few years, when IT organizations to keep the environment as simple as possible. This means that organizations need to choose a primary provider of their virtualized datacenter. This setting is in place for the choice of HP, IBM, and friends such as Juniper and Cisco, and friends such as VMware and EMC.
We believe that the benefits of a virtualized data center are convincing. But we also believe that the engagement between Cisco, HP and IBM choose to be a controversial decision for many organizations.