Changing SAP System’s Hostname
Assumptions
- SAP server is running smoothly
- Operating System is Microsoft Windows 2003
- Database is Oracle
- Valid for only AS ABAP Stack
Changing Hostname will be done in 5 Steps
Step 1 : Stopping SAP & Change Hostname on OS.
Step 2 : Changing Hostname in Oracle Profiles.
Step 3 : Changing Hostname in SAP profiles.
Step 4 : Running ORADBUSER.SQL Script
Step 5 : Uninstall and Install Service
STEP 1
It includes Stopping SAP & Oracle services and changing the hostname at OS Level
i) Stop SAP and Shutdown database
- Stop SAP through Management Console
- Right click on PRD and select Stop.
- Stop Database
- Logon to Sqlplus and type command “shutdown immediate;”
ii) Stop all SAP and Oracle services and set it to manual from Automatic.
Goto --> services.msc and stop all SAP and Oracle Services and set all automatic services to manual
iii) Changing the hostname at OS Level
Right Click on My Computer --> Properties --> Computer Name and enter the new host name
Change hostname in Hosts File
Goto --> C:\windows\system32\drivers\etc and open File “Hosts” and enter the new hostname
Change the Environment variable “SAPLOCALHOST”
Set the new value for SAPLOCALHOST i.e. enter the new hostname
STEP 2
First Please take the backup of all profiles before changing them.
i) Changing Listener.ora file
Goto --> Oracle_home\Network\Admin in my case it is D:\oracle\PRD\102\Network\Admin
And change the entry “HOST” in listener.ora
ii) Changing Tnsnames.ora
Goto --> Oracle_home\Network\Admin in my case it is D:\oracle\PRD\102\Network\Admin
And change the entry “HOST” in tnsnames.ora
STEP 3
i) Changing Default.pfl
Goto --> \usr\sap\<SID>\SYS\Profile and change hostname in default.pfl
ii) Changing START_DVEBMGS<SYSNR>_<HOST>
Goto --> \usr\SAP\<SID>\SYS\Profile
- COPY START_DVEBMGS<SYSNR>_<HOST> file and replace the hostname
- e.g.
CURRENT FILE NAME: START_DVEBMGS00_PRD
NEW FILE NAME : START_DVEBMGS00_NEWPRD
- Open the file and change the value of parameter SAPGLOBALHOST and profile name which are marked with red
iii) Changing <SID>_DVEBMGS<SYSNO>_<HOSTNAME>
COPY <SID>_DVEBMGS<SYSNR>_<HOST> file and replace the hostname
e.g.
CURRENT FILE NAME: R3P_DVEBMGS00_PRD
NEW FILE NAME : R3P_DVEBMGS00_NEWPRD
Open the file and change the value of parameter SAPGLOBALHOST
STEP 4
Download ORADBUSER.SQL script from SAP Note 50088
Run ORADBUSER.SQL script (Instructions how to run script is mentioned in the script)
STEP 5
Open a command prompt
Sapstartsrv
Uninstall the service
Restart the Server
Open the command prompt
Sapstartsrv
Enter the System Details
Profile : \usr\sap\PRD\sys\profile\ and select the start Profile
User : .\sapserviceadm
Install the service
Restart the SAP System