8/13/2019 SAP System Directories on UNIX - SAP Documentation
1/5
22/04/13 SAP System Directories on UNIX - SAP Documentation
help.sap.com/saphelp_nwpi711/helpdata/en/27/44f17a26a74a8abfd202c4f5dc9a0f/content.htm
1/5
SAP System Directories on UNIX
Here you can find information about the directory structure of
an SAP system.
An SAP system contains the following types of directories:
Physically shared directories, which reside on the global host
and are shared by Network File System (NFS)
Logically shared directories, which reside on the local host
with symbolic links to the global host
Local directories, which reside on the local host
The figures below assume that you have set up one file system
for the SAP system mount directory /and one
file system for the /usr/sapdirectory.
Standard SAP Directories for an ABAP System (Unicode or
Non-Unicode)
Standard SAP Directories for a Dual-Stack (ABAP+Java) System
http://help.sap.com/saphelp_nwpi711/helpdata/en/27/44f17a26a74a8abfd202c4f5dc9a0f/frameset.htm
8/13/2019 SAP System Directories on UNIX - SAP Documentation
3/5
22/04/13 SAP System Directories on UNIX - SAP Documentation
help.sap.com/saphelp_nwpi711/helpdata/en/27/44f17a26a74a8abfd202c4f5dc9a0f/content.htm
3/5
SAP System Directories in Detail
Directory Description
// Software and data for one SAP system
This directory and its subdirectories need to be physically
shared using Network File System
(NFS) and mounted for all hosts belonging to the same SAP
system. It contains the following
subdirectories:
exe
This directory contains executable kernel programs. In an SAP
system with distributed
instances, this directory must be shared for all hosts with the
same operating system.
NOTE
Dual-stack (ABAP+Java) system only:
execontains a folder ucand a folder nuc, each with a
platform-specific
sub folder:
//exe/uc/ is used in Unicodesystems.
Executable kernel programs are replicated from this directory to
the
exedirectories of each Unicode system instance.
//exe/nuc/ is used in non-Unicode systems (see below).
Executable kernel programs are replicated from this directory to
theexedirectories of each non-Unicode system instance (see
below).
global
This directory contains log files. In an SAP system with
distributed instances, this
directory must be shared for all hosts with the same operating
system.
8/13/2019 SAP System Directories on UNIX - SAP Documentation
4/5
22/04/13 SAP System Directories on UNIX - SAP Documentation
help.sap.com/saphelp_nwpi711/helpdata/en/27/44f17a26a74a8abfd202c4f5dc9a0f/content.htm
4/5
profile
This directory contains the start and operations profiles of all
instances. In an SAP
system with distributed instances, this directory must be shared
for all hosts with the
same operating system.
/usr/sap/ Instance-specific data, symbolic links to the data for
one system
This directory contains files for the operation of a local
instance.
There is a subdirectory for each instance. Each instance
directory has the name of the
related instance.
The instance name (instance ID) of the ABAPprimary application
server instance is
DVEBMGS, and the instance name of an ABAP additional
application server instance is D. In a high-availability
system, there is also an ABAP central services instance
called
ASCSand an enqueue replication server instance called
ERS
EXAMPLE
The file system structure might look as follows:
On a primary application server instance with SAP system ID
C11
and instance name DVEBMGS00, the ABAP additional application
server instance has the instance name D01.The instance name
(instance ID) of the ABAP+Java primary application server
instance is DVEBMGS, the instance name of the Java central
services instance is SCS, and the instance name of an
ABAP+Java additional application server instance is D. In a
high-availability system, there is also an ABAP central services
instance called
ASCSand an enqueue replication server instance called
ERS
EXAMPLE
The file system structure might look as follows:
On a primary application server instance with SAP system ID
C11
and instance name DVEBMGS00, the Java EE Engine is installed
in/usr/sap/C11/DVEBMGS00/j2ee.
On an additional application server instance with instance name
D01,
the Java EE Engine is installed in/usr/sap/C11/D01/j2ee.
The instance name (instance ID) of the Javaprimary application
server instance is
J, the instance name of a Java additional application server
instance is J, and the instance name of the Java central
services instance is SCS. In a high-availability system,
there
is also an enqueue replication server instance called ERS
EXAMPLE
The file system structure might look as follows:On a primary
application server instance with SAP system ID C11
and instance name J00, the Java EE Engine is installed in
/usr/sap/C11/J00/j2ee.
On a additional application server instance with instance name
J01,
the Java EE Engine is installed in /usr/sap/C11/J01/j2ee.
The directory /usr/sap//SYScontains soft links to appropriate
directories
in ///for storing data used by several instances.
SYSis logically shared and available on each host of the SAP
system. Its subdirectories
contain symbolic links to the corresponding subdirectories of
//
on the SAP global host, as shown in the figures above.
Whenever a local instance is started, the sapcpeprogram checks
the executables againstthose in the logically shared directories
and, if necessary, replicates them to the local
instance.
For more information about sapcpe, see The sapcpe Program.
