SAP Planning: Best Practices in Implementation

General Storage Considerations

In my experience, perhaps 85% of SAP performance problems are considered to be storage-related. This is not to say that 85% of all SAP problems can be traced back to the storage system—but by the time I am called in, the easy fixes are typically taken care of. So I rarely run into simple profile parameter problems, or issues with other hardware subsystems, or problems with the network, either. Instead, after a quick review of the entire solution stack I usually find myself drilling down into the following:

• The model and features of the disk subsystem servicing the systems that exhibit the slow performance

• Details as to how the disk subsystem has been configured

• Database statistics, to quantify how well the database ...