Good ol’ VMs
In the case of a rehost or refactor of the mainframe workloads, you will quite often need to consider VMs. This is the oldest and probably most common deployment option. Not because it is better, but because it has been around longer than any of the other options we are going to consider. Even before distributed platform virtualization was available, mainframe workloads were offloaded by various methods onto physical machines. It was quite logical for this model to incorporate VMs when that technology became available. Let’s have a look at the benefits and things to consider when deciding on this option.
- As we mentioned, the solutions available by mainframe rehosting and refactoring vendors—with the exception of a few—all run on VMs. This is because most IT shops are very familiar with the care and feeding of this deployment model. They are reliable and, with modern tooling, easy...