SAP Application Server migration

[Former Member]

Hi

We are performing a hardware migration of the SAP application server (CI & SCS). The planned system is SAP ECC on red hat linux 5.4 and oracle 10.2.0.4  as db.

We have distrubuted SAP installtaion with Application on one server and DB on a different server.

Using the standard system copy procedure we have to do the complete run (Global host prep/DB installation/CI installation) of system copy including DB installation step.

Since we are not migrating our DB server, we would like to leave DB server as it is and migrate only the application server.

How can we migrate just the Application server alone  ?

FYI - the SID, hostname and IP remains same after the migration.

Thanks

Cheryl

[former_member189725 · Accepted solution]

Do the following :

1. Since the JAVA is part of the central instance , export the JAVA central central instance using SAPINST on the source system.

2. Copy all the contents under /sapmnt/<SID> , /usr/sap/<SID> and /usr/sap/trans(if present) to a different host on an NFS mounted filesystem. Also copy the exported java directory. If any interface filesystems are present copy the contents as well.

3. Bring down the CI on the application server host. Change the hostname and IP address of the server  and shutdown the operating system. Also bring down the database on the database host but do not shutdown the server.

4. On the new hardware assign the same IP address and hostname.

5. Start SAPINST on the new sever and install SCS first with the system copy option .Then install CI with system copy option (under distributed installation)and use the same input as was defined for the old application server host . Provide the java export directory as input.

6. Once completed , selectively copy any job logs or profile parameters or any stuff that you require  from the backup  to an NFS filesystem you did in step 2.

Regards

Ratnajit