We have previously discussed the importance of a UPS in mission-critical operations.
For example, a power interruption in a data center, at a point of sale, or in some IT application can cause catastrophic economic consequences. That's why these devices have saved millions of businesses and companies from power outages.
But how do they do it? UPSs use the famous and well-mentioned “redundancy”, but What actually is redundancy and what is it for?
Redundancy is a technique that seeks to increase the reliability of a system, in which the failure of any one element of the system is compensated by the insertion of the same or similar one.
What benefits Can you provide us with a redundant system?
—More reliable system: If a computer stops working and you have added replicas, it is much more likely that a replica will take the work of the team that stopped working and that way the system will be more available.
—More efficient system: Well, with that redundancy you can handle more work, more requests and thus process more data, reducing latency.
—Easy to scale system: it's easier to scale by adding more databases, servers, or services as demands demand.
An example would be a data center. If we were to suffer a blackout and we did not have any redundant UPS protection, the servers would shut down inadequately and with this we could, in addition to having equipment unprotected by the electrical blackout that could stop working, we would also suffer a loss of information that could not be saved as well as of time to reinstate the system. Now, if we were to take this same example to a bank or a company, whatever its purpose, we would add to this the loss of customers who, due to the power interruption, could not be serviced or channeled properly.
This is why all small, medium and large companies that have critical applications such as hospitals, banks, supermarkets, data centers, etc... must have 3 essential applications:
