SAP Security Guide for IBM i
Starting with SAP Kernel Release 7.10, a new user concept is introduced and will replace the classic user concept in the future. Only the new
user concept is described in this guide. On systems that have been upgraded from older releases, you might still find the settings of the
classis user concept. However, most installation or upgrade operations require the new user concept. Therefore, you must convert to the new
user concept according to SAP Note 1149318 
.
The database IBM DB2 for i is tightly integrated into the operating system. Therefore, the database does not have its own security features but shares the security concept of the operating system. The information in this security guide is valid for both the operating system IBM i and the database IBM DB2 for i .
You need to take the following measures described here on IBM i: