Installation of second SAP System with Oracle on the same Operating systerm

[Former Member]

Hello!

I would like to install the second SAP System (SAP Solution Manager) with Oracle 10 on the same operation system Solaris Unix.

According to the Installation Guide I have not seen this case (two SAP instance on the same OS)

Can some one give me the answers for the following questions?

<b>Which preparations should be done before the installation?

- Is it recommended to install the Oracle-software/Oracle instance twice?

- Stop the current SAP System/DB? (TNS_LISTENER of old Oracle instance)

- Create directories for the new SAP instance?

- Which new environment variables (ORACLE_HOME, ORA_SID, SAPDATA_HOME, etc.) should be set and under which user (orasid, sidadm)?</b>

Thank you very much in advance for your answers!

regards

Thom

[Former Member · Accepted solution]

Hi Tom,

- Is it recommended to install the Oracle-software/Oracle instance twice?

YES in fact you have to install database twice each for sap system

- Stop the current SAP System/DB? (TNS_LISTENER of old Oracle instance)

No need to stop as while installtion you give different port no for New listner , if you are planning to use old listner then you may have to stop existing DB.

- Create directories for the new SAP instance?

Yes it will be different for both the systems.

- Which new environment variables (ORACLE_HOME, ORA_SID, SAPDATA_HOME, etc.) should be set and under which user (orasid, sidadm)?

No need I think after installation these are set for these users.

Hope this is useful

Regards

Umesh

[andreas_herzog · Accepted solution]

> - Stop the current SAP System/DB? (TNS_LISTENER of

> old Oracle instance)

>

> No need to stop as while installtion you give

> different port no for New listner , <i>if you are

> planning to use old listner then you may have to stop

> existing DB.</i>

>

usually yo do not have to stop the database...just <b>restart the listener</b> after having made the appropriate <b>changes to the isterner.ora</b>...that's all!

GreetZ, AH

[Former Member]

Thom,

such setup is a common practice followed in SAP implementations, mostly for playpen / DEV / Test instances. Also, using virtual hosts and virtual IP addresses is a good practise in such setups. It allows you to move your instances without affecting the physical host names.

Cheers,

Nisch

[former_member204746]

- Is it recommended to install the Oracle-software/Oracle instance twice?

<b>-. I recommend you to do so.</b>

- Stop the current SAP System/DB? (TNS_LISTENER of old Oracle instance)

<b>DB can remain up, but you might need to tweak the listener in some cases.</b>

- Create directories for the new SAP instance?

<b>yes, each instance whould have its own diretory (and system number)</b>

- Which new environment variables (ORACLE_HOME, ORA_SID, SAPDATA_HOME, etc.) should be set and under which user (orasid, sidadm)?

<b>you will create new orasid and sidadm and use similar values that of previous installation, except that you will use the new SID</b>