Database Recreation with same SID

Os : Linux
Database : 9.i
I am working on a remote server. I need to delete the Database and recreate with the Same SID.
DBCA is not invoked due to display problem.
I need to delete the database manually and create manually. I already created thru scripts on the same machine manually.
How to delete and create with the same SID ?

Just delete following thing
datafile ( get info from v$datafile )
control file ( get info from v$controlfile 0
redologs ( get info v$logfile )
temp file ( get info from v$tempfile )
Since you creating database with same SID , so keep init<SID>.ora/spfile , entry in oratab , tnsnames.ora entry and listener.ora

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Database restore with same SID and different schema owner

Dear all,
I have quality system on HP-UX oracle platform which has been upgraded from 4.6C to ECC 5.0
and schema owner for the database is still SAPR3
I have installed new Test system with version ECC 5.0 with same SID and now i need to refresh its database with Data from QAS system ... owner at Test system is SAPC11 which is new installation ECC 5.0 and where SID is C11.
I need to know once i restore data what steps i need to carry out at Test system
i.e like change ENV settings from SAPC11 to SAPR3.
Please note SID is same on both hosts. and owner is different SAPR3 and SAPC11
Regards,
RR

Dear all ,
Thanks for your views . but i have already installed ECC 5.0 on
target machine with schema owner as default SAPC11 (sid)
Is there any other way out ... instead of doing reinstallation with schema owner SAPR3 / instead of doing Export-Import system copy method which again is as good as reinstallation.
I would like to have your views on following ,
when i will restore database from source to taget
al tables in target machine will be having owner as SAPR3 ( which came from source ) ...but my DB owner at Target machine is SAPC11 ( as far as ENV and all profiles are concerned ) .... cant i use SAPR3 user which got restored with backup of source to target to start my instance at Target machine... may be by changing ENV settings.
I really appreciate and thank you in adavance for sharing your views.
Regards,
RR

Change in hardware key on new installation with same SID

Dear Experts,
Background:
We installed SAP Netweaver 7.3 EHP1 on Microsoft Windows Server 2008 and applied SAP License on it.
So there was a specific SID, Hardware key and Installation No to our installation.
After few months our Server machine got crashed and we formatted it.
Problem:
Now we want to install SAP Netweaver 7.3 EHP1 again on same Server machine.
Here question is:
1. Will the Hardware Key be same if I install SAP Netweaver 7.3 EHP1 with the same SID as it was before ?
Note: We want to apply the same license that was there before the crash. But we can apply same license if and only if after installing with same SID as before, system generates the same Hardware Key as before Crash !!
Other Information:
Information that we got from SAP Note (94998 - Requesting license keys and deleting systems ) that :
" For the following data changes, you require a new license key:
Customer hardware key - database - installation number - system ID.
Thanks in advance for your apt responses.
Muddassar Khan

Hi Muddassar,
With OS reinstallation , the HW Key will change.
I suggest you apply for a new License with the new Hardware Key.
Was this a Test System??
You said after few Months , the system Crashed.
Have you taken a Backup (Windows System State) ??
Regards,
Ashish .A. Poojary

What issues we may face in installing a new Prod portal with same SID as existing one

Hello All -
We found some vbs script files in the host of EP Prod system. On confirmation from SAP we deleted those files without any harm to our prod EP system. But customer is still concerned about the security of the system and wanted us build the new EP prod system with same SID.
We approached SAP and they suggested to install a new EP system and do customization rather than performing system copy from existing prod EP system because that may still bring those security threat changes to new EP prod system. (we ll decommission the old EP if everything works fine in new EP)
Now I would like to list all the issues we may face in building a new EP system with same SID as that of already existing one and then doing entire customization again in new EP from Basis team point of view. The following are very few i could think of. Could you please add some other concerns you could think of.
1) Keeping in mind that this EP system is in use for more than 6 years, some of the customization could have been done on lower versions. So could those changes be again exported from Dev and imported into new version of EP we are building now ?
2) Can't add two hosts with same name in DNS Server
3) Can't add two systems with same SID in Solution Manager for calculation of SPS to upgrade new EP

You would have to run ipsinstall and install the new gateway. Make sure to follow the installation instruction for installing a gateway.
After you install the gateway you follow the steps in the link you posted to let the server know there is a new gateway.
Then make sure to restart the gateway and server.
HTH ..

Adding systems with same SID in SMSY - solution manager

Dear All,
We are having systems with same SID's which belongs to different landscape created for various customers.
Currently We are having only one solution manager.
I consider this example for explanation.
Customer 1 : DEV --> QAS --> PRD ( SID's)
customer 2 : DEV --> ACC --> PRD ( SID's)
I would like to add these 6 systems in a solution manager. For Customer 1 , I have included the systems in SMSY . But when i tries to add DEV, PRD for customer 2 , it fails since this SID's are already present.
Is there any other way to include by giving the different SID's DE2 but with correct IP and host Or we need to have one more solution manager ? Please anyone suggest me on this
Thanks
Raj

Dear Juan ,
We can add systems with same SID in smsy. I have attached the way in which i have done. This may help others. Thank you all for your suggestion
Only use more than three characters if your landscape contains multiple systems with the same system ID (if you have a mirrored backup system that has the same ID as the original system, for example).
If multiple systems in your landscape have the same system ID, choose as system name the system ID with a suffix of up to 5 characters (a sequential number, for example) to create a unique system name.
The system accepts a system name of more than 3 characters if you choose Enter to confirm.
Thanks
Raj

Requesting license for two different ssystem with same SID

Hello,
Is it possible to request 2 license for two systems with same SID. The systems are on different machines and their HW key are different but both have same SID. While requesting license, will it permit to create 2 different license with SAME SID.
Regards
Deb

Hi Anil,
The one for which the license is already requested is the main development portal with SID EP2. I have installed one local version of SAP EP with the same SID EP2. Now we need a license for the second system.
If we change the HW key of the original license which is already applied in the main development portal under SMP and apply for a new license for the new local version, can it have any future implications, if any.
What is the best way to deal with the situation. Is there a full proof way to change the SID of the EP system, which I can try in the local EP system.
Regards
Deb

Create a Connection on TREX for 2 systems with same SID

Hello world,
Here is my case,
We have a PRO systems With SID=PRO On Host= production , and a Sandbox system with also SID=PRO On Host=SANDBOX
now i need to create a connection in TREX in parallel so when i add the 2nd one it just edits the 1st one that i have already made
So is it possible to create 2 connection of same SID but diffrent Hosts In parallel?
If Yes how ?
Thanks In Advance...
Ahmed Salam

Hi Ahmed,
it could be possible from the TREX perspective , however such configuration isn't supported . The reason for this is that the SAP applications create indexes using the ABAP system ID and client as a part of the index names (f.e. esh:e10002~e10002~acc_sid~sid). As it's not possible to create an index with the same name 2nd time, you will not be able to use the TREX instance with two systems with same SID.
Best regards,
Mikhail

SSO Configuration : Dual Stack Installation with same SID

Dear SDN users
We upgraded our BW system to 2004s with Java add-in installation. We used same SID for ABAP and Java stacks. I could not find a good document to configure SSO between ABAP and JAVA with same SID installation. I would appreciate if you can provide a link to the document or give me sequence of steps to be executed.
I am aware of note 917950 and 888687.
Thanks in Advance
V Reddy

Chetan
We are done with upgrade. Currently we are using SSO with UIDPW. I would like to configure SSO using certificates..
If I remember correctly instguides suggest to run template installer. I did use template installer but it fails in some steps as we have same SID for ABAP and Java. I manually configured all the steps using instructions from " SAP Nw2004s BEx WEb System Landscapes" published by Tobias Kaugmann. Still no luck.

Is it possible to install two SAP system with same SID but different instance numbers on one host?

Is it possible to install two SAP system with same system ID (SID) but different instance numbers on one host?
If yes, then how?
If no, then why?
Thanks in advance.
Regards,
Sarim

Is it possible to install two SAP system with same system ID (SID) but different instance numbers on one host?
Yes, it is possible. If one is CI (PAS) and the second one is an AS (AAS). In this case there will be only one database.
If you are talking about two separate SAP systems with separate databases (Eg: A BI and an ECC) with the same SID then the problem will be with the database (Eg: Oracle)
The database will be installed under /oracle/SID/112_64 (ORACLE_HOME) unless one database is running on 10 G and in that case the ORACLE_HOME will be /oracle/SID/102_64
The next issue will be with the SAP file systems like /sapmnt/SID
The most important problem will be with the switch to the sidadm and orasid users and the conflicts there. If there is a need to stop one of the SAP systems and if you do a switch to sidadm and issue a stopsap command which system will be stopped ?
These are few of the many problems I can think of.
So if we are talking about two separate systems with their own databases I would rule out the possibility of having two systems with the same SID.
Regards
RB

SID Problem : could not register two ABAP systems with same SID

Dear Expert:
We have to register two ABAP systems on different host to SLD, and these two systems have same SID.
We use rz70 to do this, but we found the lastest registration will overwrite the previous registration,
that
means we could register them both in the same SLD. (we checked this in Technical system area).
How could we do this? It makes us crazy........
Thanks very much
Ray

Dear Stefan,
Thanks so much for your anwser.
But the dilemma is in one SLD we achieved this, but it is only for one case and we could
not apply this for other systems.
This is the snapshot in our SLD for techical system:
Name                                        Host                             Version                                     Last Update
D01   on eisdq01                     eisdq01                         700                                           2010/12/06 12:45
D01   on eisdv01                     eisdv01                         640                                           2010/12/06 11:40
We don't know if this is the illusion that SLD could do this? But for other systems, e.g two Q systems
the lastest registration will overwrite the previsou one.
Thanks very much.
Welcome suggestions from very guru.
Ray

Same SID for QA & Prd systems - pros and cons?

We have the foll systems:
1. Enterprise Portal 7.0
2. NWDI 7.0
3. NW 7.0 (with XECO - Ecommerce)
4. TREX 7.1
5. Content Server 6.40
6. ECC 6.0
Currently the QA and Prd systems have the same SID and system/instance no, although they are on different hosts.
We would like to know what are the long term pros and cons for keeping the QA and Prd SIDs the same for all systems.
We are already making a list, so thought we might as well get more inputs from the community too.
We already have this arrangement for the past 3 months and have not faced any major issues.
A couple of cons though:
1. Cannot use solman as it cannot distinguish between the diff servers with same SID
2. ABAP transports from QA to Prd have to be manually done (cannot use STMS)
Thanks
Prasad

Hi Manoj,
Changing the SID of java systems is a very tedious procedure. Hom sys copy is just a part of the SID change...there are a whole lot of configs to be done after that...the task is eq to a new setup of systems
For once, the efforts put in are huge..you can see there are 5 systems..besides, it will involve coordination from all teams - basis, development, functional, project management.
Here are a few advantages that we know of:
1. No efforts reqd to change back to original SID
2. During disaster recovery, we just have to restore the production database on QA and change the hostname, whereas its not so in case of having diff SIDs
3. For end-users this will be transparent because they will be using the hostname in the URL which is anyways different
We have the same SIDs for the past 3 months and have not seen major issues, but we also would like to know from the long term perspective if there are any risks that we have not foreseen...hence we seek help from the community.
Hope its clear now
Thanks for your response
Prasad

Restore database in the same server but with other sid (name)

i try to restore the database in the same server but with other sid (name) . The backup is on tape and
I want to know the steps I should follow.
thank.

To perform restore of database in same host to choose another DB name you can go for
1) duplicate using RMAN.
Directory structure should be different so take care of db_file_name_convert & log_file_name_convert parameters
Also check the Tns services exactly is it pointing to target & auxiliary
http://www.shutdownabort.com/quickguides/clone_rman.php
http://www.oracle-base.com/articles/9i/DuplicateDatabaseUsingRMAN9i.php

Two database with the same sid but different ORACLE_HOME on one host

two database with the same sid but different
ORACLE_HOME on one host,and if configure them with
two differnt lisnter staticaclly,this abosultely work
because in the lisnter.ora we must provice
ORACLE_HOME variable,with this ORACLE_HOME the client
can differentiate which database to connect,but if
use dynamically register feature,how can the client
tell which database to connect?

Also note that this type of configurtion may not be supported.
Just because a given configuration works in certain given conditions does not mean that it would be supported.
If this setup is for a configuration that has any value, please also Contact Oracle Support to get their inputs on what you are trying to accomplish.

SAP BW 7.4 on MS SQL- With ABAP & JAVA Stack as same SID

Dears,
If you have any experience or idea for SAP NetWeaver Business Warehouse 7.4 installation on MS SQL or Oracle Database with ABAP Stack and Java Stack as same SID.
Kindly help for this possibility.
Regards,
Sri

Hi Experts,
Great for viewers.
But still expecting some ideas above questions kindly answer.
Also i got some important points.
Java Stack for BW on HANA
At least any one answer the purpose of BW Java Stack.
Regards,
V Srinivasan

How to create logical directories with same name on two databases

Hi,
OS: Windows
Oracle Version : 10g
I have to databases in one oracle home. I have created some logical directories in one database. When I am trying to create logical directories with same name in another database, it is overwriting the first database directory paths with the second one
Can't we create directories with same name but different path in two databases on one machine?
Pls suggest me on this
Regards,
Vijay

I am trying to create logical directory using CREATE
DIRECTORY statement. I am very much aware that the
create directory statement doesn't create directory
on OS. But we can attach the physical directory on OS
to logical directory in oracle
My requirement is to create logical directories in
oracle mapping the OS directories. Both the
databases, wil have same logical directory names but
different OS directory mappingsIf I understand you correctly, you can do this:
On DB 1
CREATE OR REPLACE DIRECTORY same_dir_name as 'C:\myoracle\mydir1';
On DB 2
CREATE OR REPLACE DIRECTORY same_dir_name as 'D:\myoracle\mydir2';
What stops you from doing that ?
Note: If what you have is one database but different connections, then you are connecting to one database. The above second statement will drop and replace with the first one

Database Recreation with same SID

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