This solution can also be implemented by SMEs, but it involves a very high expense, since the hardware redundancy and the maintenance of the system so that if a server falls automatically a reserve one is used supposes an added cost that many do not consider necessary. In this way, the level of service drops, and at some point in the year there will be an incident and discontinuity in the business.
We must also take into account issues such as network electronics in accessing the local network, which can also fail us. Here we must also take into account that when accessing the cloud, the failures of the communications line must be considered. Currently, with the arrival of fiber, the connection is much more reliable, but whenever this type of solution is adopted, it is necessary to have redundant communication lines, something common with the arrival of mobile broadband.
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