Directory Structure Within SAP Systems  

Case1: Software installation with creation of a database instance (server and client installation)

In SAP systems, for each database instance a special MaxDB software package is installed which is only used by one database instance. This means, for example, that for 2 database instances of version 7.6, the MaxDB software of version 7.6 is installed twice.

The complete software installation on the database computer involves the following paths:

●     An Independent Program Path

●     A Dependent Path

●     An Independent Data Path

●     A run directory of the database instance

●     A path for storing the log volumes

●     A path for storing the data volumes

 

Default values for the directory structure

Path	Default Value under Microsoft Windows	Default Value  under UNIX/Linux
Independent Program Path	<drive>:\sapdb\programs --bin --pgm --... --...	/sapdb/programs
Dependent Path	<drive>:\sapdb\<database_name>\db	/sapdb/<database_name>/db
Independent Data Path	<drive>:\sapdb\data	/sapdb/data
Run directory of the database instance	<drive>:\sapdb\data\wrk\<database_name>	/var/opt/sdb/data/wrk/<database_name>
Storage of log volumes	<drive>:\sapdb\<database_name>\saplog	/var/opt/sdb/data/<database_name>/log
Storage of data volumes	<drive>:\sapdb\<database_name>\sapdata	/var/opt/sdb/data/<database_name>/data

 

To ensure the downward compatibility of the database software, the database system creates the following directories on UNIX/Linux:

Path	Contents of directory
/var/spool/sql	Links to current directories and files
/usr/spool/sql	Links to current directories and files

 

 

Case 2: Software installation as application server (client installation)

In a pure client installation, the following paths are created:

●     An Independent Program Path

●     An Independent Data Path

 

Default values for the directory structure

Path	Default Value on Microsoft Windows	Default Value on UNIX/Linux
Independent Program Path	<drive>:\sapdb\programs --bin --pgm --... --...	/sapdb/programs
Independent Data Path	<drive>:\sapdb\data	/sapdb/data

 

To ensure the downward compatibility of the database software, the database system creates the following directories on UNIX/Linux:

Path	Contents of directory
/var/spool/sql	Links to current directories and files
/usr/spool/sql	Links to current directories and files