Creating Users and Directories

SAP R/3 needs two users and three groups. The user names depend on the SAP system ID (SID) which consists of three letters. Some of these SIDs are reserved by SAP (for example SAP and NIX. For a complete list please see the SAP documentation). For the IDES installation we used IDS, for the 4.6C SR2 installation PRD, as that system is intended for production use. We have therefore the following groups (group IDs might differ, these are just the values we used with our installation):
group ID group name description
100 dba Data Base Administrator
101 sapsys SAP System
102 oper Data Base Operator

For a default Oracle installation, only group dba is used. As oper group, one also uses group dba (see Oracle and SAP documentation for further information).

We also need the following users:
user ID user name generic name group additional groups description
1000 idsadm/prdadm sidadm sapsys oper SAP Administrator
1002 oraids/oraprd orasid dba oper Oracle Administrator

Adding the users with adduser(8) requires the following (please note shell and home directory) entries for “SAP Administrator”:

Name: sidadm
Password: ******
Fullname: SAP Administrator SID
Uid: 1000
Gid: 101 (sapsys)
Class:
Groups: sapsys dba
HOME: /home/sidadm
Shell: bash (/compat/linux/bin/bash)

and for “Oracle Administrator”:

Name: orasid
Password: ******
Fullname: Oracle Administrator SID
Uid: 1002
Gid: 100 (dba)
Class:
Groups: dba
HOME: /oracle/sid
Shell: bash (/compat/linux/bin/bash)

This should also include group oper in case you are using both groups dba and oper.