Tip

Copy or rename R/3 w-out installing

Need to move or copy R3 to another server or change the SID or instance number? It can be done without an install quite easily on Unix/Oracle systems.

Move or copy SAP R3 on Unix/Oracle, changing hostname, SID and instance without installing R3 or Oracle.

<SID>        = SAP SID
<HOST>       = Host name
<##>         = SAP Instance number
<SAPINSTNAM> = SAP Instance name (e.g. DVEBMGS00)
<SAPORAHOME> = Home directory of SAP Oracle user
<SAPADMHOME> = Home directory of SAP Administrator
<SAPPROFILE> = Directory containing SAP profiles
<ORATNSHOME> = Directory containing oracle TNS control files
<ORAHOME>    = Oracle Home

  1. Stop SAP and Oracle (shutdown normal)
  2. Copy all files under /oracle/<SID>, /usr/sap/<SID> and /sapmnt/<SID>
  3. Rename and/or edit following changing hostname, SID and instance number
        <SAPORAHOME>/.init<SID>.ora                                             
                    /.dbenv_<HOST>.csh                                          
                    /.dbenv_<HOST>.sh                                           
                    /.sapenv_<HOST>.csh                                         
                    /.sapenv_<HOST>.sh                            

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  1. <ORATNSHOME>/tnsnames.ora /listener.ora <SAPADMHOME>/startsap_<HOST>_<##> /stopsap_<HOST>_<##> /.dbenv_<HOST>.csh /.dbenv_<HOST>.sh /.sapenv_<HOST>.csh /.sapenv_<HOST>.sh <SAPPROFILE>/<SID>_<SAPINSTNAM>_<HOST> /START_<SAPINSTNAM>_<HOST> /DEFAULT.PFL /usr/sap/PRD/<SAPINSTNAM>
  2. Relink Oracle executables
        cd <ORAHOME>/rdbms/lib                                                  
        edit nmliblist and change <SID>                                         
        make -f ins_rdbms.mk install
  3. Create script to build new DB control files
        svrmgrl                                                                 
        connect internal                                                        
        shutdown normal                                                         
        startup nomount                                                         
        alter database backup controlfile to trace resetlogs;                   
        alter database open;                                                    
        alter system switch logfile (one for each group)                        
        shutdown normal                                                         
        exit                                                                    
        rename the trace file in <ORAHOME>/saptrace/usertrace/ to control.sql   
        edit this file                                                          
          delete everything but the CREATE CONTROLFILE command                  
          change the CREATE CONTROLFILE statement to                            
            CREATE CONTROLFILE SET DATABASE <SID> RESETLOGS ARCHIVELOG          
          change <SID> and alter any file location changes
  4. Remove or rename old control files
  5. Build new DB control files
        svrmgrl                                                                 
        connect internal                                                        
        startup nomount                                                         
        @control.sql                                                            
        alter database open resetlogs;                                          
        exit
  6. Create the services entries in /etc/services
          sapdp<##>    32<##>/tcp
          sapgw<##>    33<##>/tcp
          sapms<SID>   36<##>/tcp
          sapgw<##>s   48<##>/tcp


This was first published in May 2002

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