SPOFs and the Database Layer
To many, providing high availability for SAP often equates to protecting the database. Of course, as you have seen already, there is a lot more to HA than simply safeguarding the structure that houses all of your SAP enterprise data. But the database historically represents a key single point of failure in SAP installations. Consider the following:
Without the database, neither new nor old transactions can be created or referenced. Thus, all of the surrounding SAP infrastructure is worthless when the database becomes unavailable.
Until recently, the database for an SAP instance could not be split into pieces across multiple servers. Of course, Oracle’s 9iRAC now solves this age-old SPOF. But the lack of such a solution ...
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