I don't think there is another system in the world as stable as Teradata. They have a redundant hardware setup with double components for everything. If one component fails, another one takes over. This redundancy extends to the data side as well. The system runs on multiple disks, so if one disk fails, the data is still available on another disk, and the replacement process is seamless thanks to hot-swappable components. We don't have to shut down the entire system to replace most parts in the Teradata system. We can simply slide out the faulty component and slide in a new one. Unlike old technologies that required powering down the entire system, Teradata's architecture allows for most operations to remain functional even during maintenance. However, in certain cases, depending on the architecture, we might need to power down the systems.

The solution does seem to be a quite stable solution. We haven't had any major issues that I am aware of. Generally, stability has never been a problem with the product. There are no bugs or glitches. It doesn't crash or freeze. 

Stability-wise, we have had some issues with automation and the ability to handle large datasets.