mySAP.com Single Points of Failure

SAP AG tells us that a “disaster is a situation in which critical components in the SAP environment become unavailable so that service cannot be resumed in a short period,” such as a few hours or days or so. Further, the two most critical SAP System components are: first, the database, and second, the SAP instance that runs the enqueue and message services—the central instance (CI).

In previous sections of this chapter, I described a number of methods and approaches for protecting the database. The topic of this section, on the other hand, is how to protect the CI and other SAP-specific single points of failure from both interruptions in service and full-fledged disasters.

Generally speaking, the CI can enjoy ...

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