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Changing an SAP Systems Hostname

This document assumes that your SAP system is running without any problems on an

existing server with a particular name. This procedure was carried out on a Web

Application 6.10 server installation with a system name o SAPWAS! the system then

had its name changed to SAPW"#. Shutdown all SAP and Oracle services, making

sure that they are either disabled or set to manual.

This should be attempted in $ stages

1. Windows %T level

1.1 &hanging the 'ostname in the %etwor( Properties

This stage will require a reboot of the machine, but wait until all parts of NT stages are

completed. (If Oracle services are still set to automatic, the ORA!"#"R$I"A%"NT

and the ORA!"TN#!I#TN"R will fail upon reboot&

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&hanging the entry in the &)*winnt*system$+*drivers*etc*hosts ile

The files 'ust needs saved.

1.+ &hanging the entry in the "nvironment variables or the SAP,-&A,'-ST

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. Oracle !evel

)efore ma*ing an+ changes to the following files, create a temporar+ director+ under the

admin director+ and place copies of the files within. This will enable a speed+ return to the

original config in the event of a rollbac*.. !istner.ora file

If the -O#T part of the file has the old hostname of the server present, the entr+ needs

changed. If an I address is present then there is no change to be made unless the

binding order requires changed.

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. Tnsnames.ora

If the -O#T part of the file has the old hostname of the server present, the entr+ needs

changed. If an I address is present then there is no change to be made unless the

binding order requires changed.

Once this is completed, attempt to restart the Oracle services, the+ should restart without

an+ problems. (The OracleAgent/0 has some issues which I have not resolved +et, it

willnot start, it e1ecutes a file 2oracle2bin2dbsnmp.e1e&

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3. #A rofiles

)efore ma*ing an+ changes to the following files, create a temporar+ director+ under the

profiles director+ and place copies of the files within. This will enable a speed+ return to

the original config in the event of a rollbac*.3. 4efault.pfl

5ithin this file replace all the old hostname entries with the new host name and save.

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3. #tart6devmgs7s+snr867-ost8

5ithin this file replace all the old hostname entries with the new host name and save

under the new file name using the new hostname, eg

Old 9ilename : #TART64$");%#

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3.3 7sid8devmgs7s+snr67host8

5ithin this file replace all the old hostname entries with the new host name and save

under the new file name using the new hostname, eg

Old 9ilename : 5")64$");%#

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Now the s+stem should be read+ to restart the #A #+stem.