What is our primary use case?
I am a system administrator, and I work with AS/400. I take care of the upgrades. I am also making the CL programs (CLP) and working on RPG skills for myself.
We have multiple environments. We have Power9, Power8, and Power7. V7R4 is the latest one out there, but V7R3 is the latest one that we have. Companies don't deploy the latest version unless they are sure, and they have got feedback from others about the version. We also have disaster recovery and backup machines.
How has it helped my organization?
The flashcopy feature is helping us so much. It reduces time . For example, if we want to have a backup on a machine, we can flashcopy it to another environment, and this first machine is free to use.
What is most valuable?
Power System is like a dream solution for every IT person because it has redundancy, and it doesn't stop. It doesn't get affected easily.
I don't see any weaknesses in this solution. At the moment, we have Power8. It is stable and runs smoothly. We have a big load, and it is working very well.
The redundancy in Power machines is very important and it gives stability and feasability on all levels. Power systems can integrade different types of storage, which gives the advantage to combine all your storage capacity especially if you go for virrualization.
What needs improvement?
In Power6, latency was an issue, but nowadays, we are on Power8, which doesn't have any such problems.
Sometimes, we can have issues when we are moving or migrating to a newer version, which is the case with almost every company. Some new issues or problems show up suddenly, and you do not have the time to research and find the solution. That's when we contact IBM technical support.
What do I think about the stability of the solution?
How are customer service and technical support?
We use IBM technical support not so much per year because everything is clear and has procedure, and most of the time all migrations or upgrades will be prepared and tested before moving to production environment. Sometimes, we face complications while moving to a newer version, where we share such cases with IBMi team. It is very seldom when we do not have the time to research and find the solution. That's when we contact IBM technical support.
We are also in contact with the application supplier, who can provide any request from our side with the fix needed. The deployment will be at our level, first on the testing environment and after the result will meet our team expectations, we deploy it on the production environment.
Which solution did I use previously and why did I switch?
I didn't use any solution previously.
What about the implementation team?
We are a team of three people. We are responsible for the deployment of the database as well as switching from one machine to another.
We are responsible for OS upgrade. When we are moving from one version to another, sometimes I make plans for that. I also take charge of some other parts because we share everything in the team.
What other advice do I have?
I would say if you are not using the IBMi solution, you are missing something. You should at least know about this solution. I was an IT support previously, and When I started to use IBM Power Systems, I fell in love with this machine due the professionalism, solidity and high scalability .
The biggest lesson that I have learned from using this solution is how not to have a single instance of failure. These machines don't die and don't have any problems. For me, it was astonishing to be able to switch disks or the power supply without turning off the machine. It is a reliable and great solution.
I would rate IBM Power Systems a nine out of ten.
Which deployment model are you using for this solution?