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Mastering ServiceNow - Second Edition by Martin Wood

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Optimizing hardware resources

ServiceNow allocates a pre-determined set of resources for each instance. As discussed in Chapter 1ServiceNow Foundations, an instance is independent, and a high load in one should not impact another instance.

Nonetheless, users do share resources with all those who use the same instance. To ensure that the platform can serve their request, the following strategies are employed by the ServiceNow cloud operations team:

  • Horizontal scaling, which gives busier instances more application nodes. The load balancer distributes users over the nodes. Read replicas are used to help fully loaded databases.
  • Vertical scaling, which includes providing the right level of memory and database connections.

    Note

    These parameters are controlled ...

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