Virtualization is normally used to provide workload consolidation, but this means, without the right resource management, just blending everything together; this could become a risk, like putting all your eggs in one basket without taking any precautions. In addition, all shared components of your infrastructure will most likely be affected in some way by this big change (for example, the storage or the network). Moreover, standard procedures such as monitoring, backups, patching, and administration will be also affected.
As a good practice, before virtualizing an existing environment, you need to assess all parts of your infrastructure not just the servers you plan to virtualize to uncover any potential problems or hurdles that may impact your project. The old woodworking rule measure twice, cut once also applies to information...