SAP Standard Filesystem Hierarchy.

SAP Standard Filesystem Hierarchy

usr/sap 
/usr/sap/ccms
/usr/sap/SID
/usr/sap/SID/DVEBMGSnn                contain SAP instance specific directories data, log, and work..
/usr/sap/SID/DVEBMGSnn/work
/usr/sap/SID/SYS                               contain profile, global, and exe directory.
/usr/sap/SID/SYS/exe
/usr/sap/SID/SYS/global    -->       /sapmnt/SID/global.
/usr/sap/SID/SYS/profile    -->      /sapmnt/SID/profile.
/usr/sap/trans                                  Transport directory.
/usr/sap/trans/bin                            TPPARAM file (global transport parameter).
/usr/sap/trans/buffer                        Special buffer with the SID of every system in the transport.
 
group (including control information)
/usr/sap/trans/cofiles                        Transport request control file.
/usr/sap/trans/data                            Transport request data file.
/usr/sap/trans/EPS
/usr/sap/trans/EPS/in
/usr/sap/trans/log                              Transport logs, trace and statistic file.
/usr/sap/trans/tmp                             Temporary directory.

                                                 //sapmnt
                                                       |
                                                    SID
                                                       |
                                           +-------+-------+
                                                     | | |
                                             exe global profile
/sapmnt       directory structure for sharing common files to all system belonging into the same group.
/sapmnt/SID              shared directory or link to directory /usr/sap/SID/SYS
/sapmnt/SID/exe        SAP executable application directory.
/sapmnt/SID/global    SAP central system log.
/sapmnt/SID/profile    SAP instance profile.