I've been in Technology for over 25 years. I supported the systems on both mainframe and midtier platforms. I often question which platform is better. I'm open and honest, I'm a central person. I grew up on the mainframe and worked more comfortably on mainframe systems. But as I walked in control, you had to look at the middle level systems and become more cynical about the mainframe.
Mid-level systems have grown significantly over the years. The hardware platform has become more reliable and cost-effective.
Let's look at some of the technological trends:
- Linux stormed the storm. This operating system occupies a lot of space in the mainstream I.T. shops. The company I work on openly included Linux. It has almost completely replaced the existing UNIX / AIX / SUN environments. One big thing to notice is that Linux is truly hardware-independent. Linux can still run on the mainframe.
- Virtualization is the fury of technology. Virtualization has enabled mid-level solutions to become more cost-effective by increasing hardware utilization. But virtualization is not new. Virtualization has been a computational fortification for years. Workload Management (WLM) is around the mainframe, which looks forever. The mainframe is very different in balancing the various loads. Adding virtualization to medium-level environments has allowed middle-level systems to work much better than a mainframe.
So if Linux runs anywhere and virtualization looks at the middle level as the mainframe, why use the mainframe?
There are still features in which the mainframe is still visible. Mainframe WLM still far exceeds the capabilities of mid-level servers. Medium level virtualization is much better than horizontal scaling. The mainframe significantly improves vertical scaling. Large amounts of transactions using high input output processing are better suited to the mainframe. Large computing processes better meet the middle level.
Probably more packaged software solutions are available for the distributed world. But reliability, availability, and scalability of the mainframe are still unbelievable
In the mainframe world, parallel sysplex allows a large computer to work as if it were a machine. It offers a lot of opportunities for an organization to deploy their technology. These large machines do not even have to stay close to each other. The geographically dispersed parallel Sysplex (GDPS) would allow the organization to run multiple data centers and each to look at the client.
So what's the better one? This really depends on how much your workload and the amount of existing work is worth, which can now be in the mainframe. If you started from scratch, I probably started a server. But if I had a big investment in the mainframe, I wanted to keep the mainframe and take advantage of the servers where it is most meaningful. Servers will be used for presentation and application layers. The mainframe is the most secure and secure data management platform
Choose the one that best suits your needs and budgets.
Linux is probably one of the biggest developments that has come along the way. The Linux operating system leverages and improves many benefits of UNIX. Linux can run on any platform, including the mainframe.