On Unix and Linux, the database system uses the special operating system group <sdba_group>. The system default for the name of <sdba_group> is sdba.
The following database resources have the operating system group ID (GID) of <sdba_group>:
Files and directories of the database software (for example, User Profile Container)
Database processes
vserver process (SAP MaxDB X Server = communication server)
Volumes, if there is no support group for the database
Backups
Operating system users who perform administration tasks for the database system belong to the <sdba_group> operating system group. These operating system users can perform the following actions, among others:
Creating new databases
Accessing the directory <independent_data>/wrk and its subdirectories
Accessing the XCONS database tool
Accessing volumes, if there is no support group for the database
<sdba_group> is also the primary group for the special operating system user <sdb_user>.