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Directory Structure (UNIX)

Definition

This section describes the directory structure for the Oracle database with the UNIX operating system.

Use

The directories contain a range of files such as profiles, log files, scripts, executables, and so on.

The following conventions apply to this section:

Term Meaning

$<name>   Environment variable

<DBSID> $ORACLE_SID

<TSP>   Tablespace short name

For example, BTABD for the tablespace PSAPBTABD.

Structure

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There are the following main structures:

· $ORACLE_HOME  for Oracle-specific objects with the default directory /oracle/<DBSID>/<Oracle version>

· $SAPDATA_HOME  for SAP-specific objects with the default directory /oracle/<DBSID>

· Executables with the directory /usr/sap/<SAPSID>/SYS/exe/run

Oracle Home Directory

This directory contains the following subdirectories:

· dbs/

¡ spfile<DBSID>.ora  Oracle spfile

¡ init<DBSID>.ora Profile for Oracle

¡ init<DBSID>.sap Profile for BR*Tools

¡ cntrl<DBSID>.dbf  Database control file

· bin/  contains binaries such as oracle, sqlplus, exp, imp

rwsr-xr-x ora<dbsid> dba oracle

SAP Home Directory

For the files starting log_, gmeans group and m means member:

· origlogA/

¡ log_g11m1.dbf

¡ log_g13m1.dbf

· origlogB/

¡ log_g12m1.dbf

¡ log_g14m1.dbfMirrored redo logs are optional – although we strongly recommend using them – so the specification for mirrlogA  and mirrlogB  might vary:

· mirrlogA/

¡ log_g11m2.dbf

¡ log_g13m2.dbf

· mirrlogB/

¡ log_g12m2.dbf

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¡ log_g14m2.dbf

· sapdata1/

¡ cntrl/cntrl<DBSID>.dbf Database control file

¡ system_1/system.data1  First SYSTEM tablespace file

¡ btabd_1/btabd.data1 Example of a SAP data file for tablespace PSAPBTABD

¡ ...

· sapdata2/¡ cntrl/cntrl<DBSID>.dbf Database control file

¡ system_2/system.data2

¡ btabi_1/btabi.data1 Example of a SAP data file for tablespace PSAPBTABI

¡ ...

· sapdata<n>/

· saparch/

¡ arch<DBSID>.log BRARCHIVE summary log

BRARCHIVE detail logs:

¡ <encoded timestamp>.sve Original saved

¡ <encoded timestamp>.svd Original saved and deleted

¡ <encoded timestamp>.cpy Original copied

¡ <encoded timestamp>.cpd Original copied and deleted

¡ <encoded timestamp>.dsv Deleted, were saved once

¡ <encoded timestamp>.dcp Deleted, were saved twice

¡ <encoded timestamp>.ssv Parallel saved on two stations

¡ <encoded timestamp>.ssd Parallel saved on two stations and deleted

¡ <encoded timestamp>.cps Copy and save

¡ <encoded timestamp>.cds Copy, delete and save

¡ <encoded timestamp>.qua Query which tapes to be used

¡ <encoded timestamp>.cma Determination of software compression rate

¡ <encoded timestamp>.tia Tape initialization

¡ <encoded timestamp>.fst Stop archiving using brarchive –f stop

· sapbackup/

¡ back<DBSID>.log BRBACKUP summary log

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¡ <encoded timestamp>.xyz  BRBACKUP detail log, where:

§ x  = a (whole, previously all), p  (partial) , f  (f ull) , i  (incremental)

§ y  = n  (online) or f (offline)

§ z  = t  (tape), p  (pipe), d  (disk), f(util_ f ile), r  (RMAN), s  (remote disk, stage),

§ xyz  = qub Query for which tapes are to be used

§ xyz  = cmb Determination of software compression rate

§ xyz  = tib Tape initialization§ xyz = rmp  RMAN preparation run

§ xyz = dbv Database verification with DBVERIFY

§ xyz = ddb  Delete of disk backup

¡ <encoded timestamp>.xyz BRRESTORE detail log, where:

§ xyz  = rsb Restore backup files

§ xyz  = rsa Restore archive files

§ xyz  = rsf Restore individual files

¡ <encoded timestamp>/ Disk backups

Copies of database files¡ <DBSID>/ Copies of profiles and log files

§ spfile<DBSID>.ora

§ init<DBSID>.ora

§ init<DBSID>.sap

§ back<DBSID>.log Summary log

§ <encoded timestamp).xyz Detail log

¡ BRRECOVER log files

· sapcheck/

¡ <encoded timestamp>.sta: log of  brconnect –f stats

¡ <encoded timestamp>.chk: log of  brconnect –f check

¡ <encoded timestamp>.nxt: log of  brconnect –f next

¡ <encoded timestamp>.cln: log of  brconnect –f cleanup

· sapreorg/

¡ BRSPACE logs

¡ BRSPACE writes sc ripts, parameter files, and restart files as follows to the directory:

§ <encoded datestamp>/ddl.sql: Data Definition Language (DDL) statements for table reorganization

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§ <encoded datestamp>.edd/expdat.dmp: export dump file for table export

§ <encoded datestamp>/parfile.exp: parameter file for table export

· saptrace/

¡ background/

§ alert_<DBSID>.log Oracle Alert file

§ *.trc Oracle trace files

¡ usertrace/§ *.trc User trace files

· oraarch/  Oracle offline redo log files

Executables in Directory /usr/sap/<SAPSID>/SYS/exe/run

· brarchive

· brbackup

· brconnect

· brrecover

· brrestore

· brspace

· brtools

 

See also:

Directory Structure (Windows)

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