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 |