In 2013, I joined IBM Pakistan as an IT specialist. Where I used to work as a system manager, the guy who used to work with Power Systems, with OSAIX and IBM storage. Then, I was shifted to IBM Europe in the Czech Republic. There's a CIC center in Brno, where I've worked with IBM as well, but as a third-level support guy. Now I'm based in Qatar, and worked for government organization. I work as a system specialist for the Power Systems and the unit support as well, the operation stuff. I worked for eight years or more before this AIX and Power Systems and storage.
I worked as an operations guy for whole IT operations and as well as the implementation. Because there were so many clients from the banking sector, from the government sector, and telecom industry, they mostly have the billing systems on the Power Systems.
Now, I work as a unified system specialist.
IBM Power Systems is mostly used for specific IBM products because the system AIX is actually propriety of IBM. You cannot install it on any other platform. You can use it in different domains, like SAP HANA, do rack data and rack warehouses. Users in the telecommunication use it. They were using as an IBM Middleware product. An IBM Middleware product was being used solely on the Power Systems.
IBM has started supporting Red Hat, so people use Red Hat and some clients do put it in a cloud environment as well. The core baking system runs on that because most of the core banking like Oracle Financials are being used on this.
The use case depends on what the customer requirement is.
I started working with Power4 back in 2012, and almost Power4, Power5, 6, 7, 8, and now I am working with Power9 as well.