Distributed vs. Central System

Hi,
Currently I am in a scenario where my Database (DB2) and application is running on the same central system. I have endusers in almost 100 supply office and almost around 1 million consumer data. The system is the ISU Production server with ERP 6.0 running on AIX 6.1 in IBM P570 server. Recently we are experiencing some performance issues with the system like slow performance being a major issue. For the ISU production server we also have a failover server of same configuration which is at the moment almost unutilised.
Will it be wise to distribute the application and database between the two servers other that running both on the same? If so what will be the best procedure to do this sort of change as we are already in Production environment?
Thanks & Reagrds,
Daipayan Basu
In summary
DB and CI are in the same phisical machine. Can we place DB and CI in different phisical machines? All the mount points of ISU Production server are in SAN storage.
Regards,
Daipayan Basu
Edited by: Daipayan Basu on Feb 13, 2012 6:41 AM

Hello Michael,
Thanks a lot for your feedback. I will send you details about some of the performance issues that we are facing in our production environment. But before that I would like to share with you the breif architecture of our production environment.
At present our DB and CI is running on Node1 and there is a failover node (Node2) with same configuration. At the moment this Node2 is acting as standby server. What we are planning is to move tthe DB from Node1 to Node2 (failover server) and configure the cluster in such a way that in case of failure of Node1 CI will failover to Node2 (DB Node) and vise versa.
By doing so we can atleast allocate more RAM and CPU to both DB and CI.
In the present configuration we observe that a few z programs are consuming high memory taking work process in private mode.
Do you think segregration of DB and CI node may help resolve these issues?
I will be eagerly waiting for your response.
Warm Regards,
Daipayan Basu

Similar Messages

Homogeneous Copy / Converting Distributed System as Central System.

CURRENT SAP LANDSCAPE.
SAP Production System is installed as a Distributed System:
SAP Application Host:_ AIX 5.2 - SAP Application (Central Instance - Central Services) based on NW 7.0 - ERP 2005 SR1.
Database Host: AIX 5.2 - Oracle 10G ver 10.2.0.2.0. - Database remains in SAN (Storage Area Network)
ESCENARIO ONE:
COPYING ONLY CENTRAL INSTANCE AND CENTRAL SERVICES TO A NEW HOST.
Purpose: I want to copy only SAP Application (Central Instance an Central Services) to a new host and connect to my current Database Host .
According System Copy Guide (*) the concept of System Copy includes installation of SAP instances again using copy of source system database, likewise in this Guide I found the following restrictions:
Restrictions.
1.     Copying the database only is not supported!
2.     Copying the central instance only is not supported!
      The migration controller deletes all dialog instances in the database, so the
      system is not complete any longer.
3.     Reinstalling the central instance without the database is not supported!
      The migration controller deletes all dialog instances in the database, so the
      system is not complete anylonger
Questions:
1.     Using Homogeneus Copy (Abap+Java) can I copy ONLY SAP Instances (Central Instance and Central Services) to a new host without copying Database ?
2.     Which is the best procedure to follow for this purpose?
(*) System Copy for SAP Systems Based on SAP NetWeaver 2004s SR1 ABAP+Java
Document version: 1.1 ‒ 08/18/2006
ESCENARIO TWO:
CONVERTING DISTRIBUTED SYSTEM IN CENTRAL SYSTEM
Purpose: Convert our SAP Distributed System (two hosts) in SAP Central System (one host)
Questions:
1.     Using Homogeneous Copy (Abap+Java) can I copy SAP Instances (Central Instance, Central Services) and Oracle Database Instance to only one host (Central System) ?
2.     Is there any specific experience or procedure for this special case?
3. Can I restore Database Full Offline Backup and SAP Application Offline backup in the new server as an alternative ?
Thanks.

Use the distributed system option, as that is what applies to your target system. It is all explained clearly in the system copy guide, which you should definitely reference as appropriate for your software version: http://service.sap.com/instguides -> Installation & Upgrade Guides -> SAP NetWeaver -> SAP NetWeaver 7.4 (or version as appropriate) -> Installation -> 2 - Installation - SAP NetWeaver Systems -> System Copy: Systems Based on SAP NetWeaver 7.1 or Higher -> Windows: ABAP (or system variant as appropriate). In the guide, choose the Database-Specific System Copy: MS SQL Server-Specific Procedure. Also, be sure to check out the chapter on Copying the Database Only - Refresh. Basically, it says to run SWPM on the target database instance, choosing <Product> -> <Database> -> System Copy -> Target System -> <System_Variant> -> Based on AS ABAP (or other as appropriate) -> Database Refresh or Move.

SolMan is Central System, how to seperate the database to make it distribut

Hi,
I really need some advice.
currently SolMan 7.1 on SQLServer2008R2 on Windows08R2 is installed as a central system installation (CI&DB same host).
Due to some security policy (long story), I need to seperate the DB, to move the DB to another server, making SolMan a distributed system (CI remain on existing host, DB on a different host).
SolMan is currently already fully setup and communicating to all my other SAP systems.
What will be the easiest way to move my SQLServer DB to another server?
Will this involve needing to reinstall my CI (Abap+Java) and SCS? If no reinstallation, then how do I make the current CI talk to the relocated DB?
What is the method that will have no impact on the SolMan configurations, meaning non of the connectivity from SolMan to the other SAP systems will break after the seperation of the DB?
regards,
Nick

I would
- shutdown the system (SAP + database) and make sure the services are all stopped
- copy the database over to a new server and start it (use Note 151603 - Copying an SQL Server database)
- set up the environment on the SolMan system to point to the new server (Note 98678 - SQL Server Connection Issues)
- start the instance
- if it starts remove the local installed database
Markus

Distributed System and Central System

Dear Gurus ,
We now started the implementation of ECC 6.0 , I have one doubt , In installation master guide there are two kinds of installation mentioned . Distributed System and Central System . Kindly let me know what is the difference between these two .
Regards
Selvan

Hi,
Distributed System- When you have your DB and CI hosted on two (physically/Logically) seperate hosts.
Central System - When you have your DB and CI hosted on same host
Thanks
Dhiraj

Going from centralized system to distributed system

Hello,
We would like to go from a centralized system and to a distributed system, having the database and the central instance on different servers. Could you please tell me if there is a procedure to do this or do we have to reinstall ?
Best regards,
Arijana

normaly it is easier to move the DB to another host.
Moving the CI you will need a new License Key, you will have to reconfigure all SAP Clients (SAP GUI) using the new hostname.
On the other hand before splitting the CI and database you should add additional Application servers (dialog instances).
Normaly you will not be able to utilize all resources of the database host, with just one application server installed on a separate machine. (valid for equal hardware configurations of both machines).
Peter

Could not access the central system - CUA problem

Hi all,
Please help me with this problem.
Its just a test scenario, when everything will be good here, i have to do the same for Production.
We just did upgrade our R3 system from 4.6 to ECC6.0.
I created CUA on DB1100 ( Dev BW 4.6 ) with two child systems 1) DC1150 ( Dev CRM 4.6)
2) DE1400 ( DEV ECC 6.0 ).
Now everything is working fine between DB1100 and DC1150..
It works like CUA ( DB1100) and child (DC1150) systems as it should be.
But connection between DB1100 and DE1400 is not working fine. When you go to SU01 in DE1400, it does not allow me to change anything. It means connection is there and DB1100 is taking DE1400 as child system but when i am updating any user information or roles in DB1100 it is not updating child system DE1400.
And when i went to tcode SCUA in DE1400 it gave me this error.
"Could not access the central system DB1100".
I dont know whats happening. I did same config in DE1400 as i did in DC1150. DC1150 is working fine but not DE1400.
The most weird thing is that DB1100 is thinking DE1400 as child system and i can not make any changes to DE1400 directly.
please help me with this. What i can do to make this working between DB1100 and DE1400??
i need to do the same in production if it gets passed.
Thanks in Advance.

Hi mala_swa,
seems that you have a problem with the rfc-connections....
Please check in both directions. The connection have to work without problems.
Check SCUL in DB1100 - what is the status of the distributed users? Errors, unconfirmed?
Check idocs in DE1400. Are there some? What is their status?
The most common error is coming from not working rfc-connections. That brings for instance problems while generationg partner profiles, etc. Also the strict naming convention (log. system name=system name in CUA landscape = name of used RFC-connections) has to be considered....
So that are some points, that you could check.
good luck,
Bernhard

Remote system monitoring entry- data not relayed to Central system

Hello Folks,
I am trying to establish a central monitoring system for our client. I am trying to test it in the DEV environment first.
The central system is a Solution manager system (Dual stack- ABAPJAVA). I am trying to bring in monitoring data from the ECC development environment (ABAPJAVA).
First of, i created to RFC connections in Solution manager system, one for data collection and the other for analysis. I have maintained the host address of the ECC system as target.
Then i have created a remote system entry in Transaction RZ21--> technical infrastructure entered the 2 RFC names and have executed the function.
At this point i am only trying to bring in ABAP stack monitoring data form the ECC system so i have not generated the CSNCONF file.
Now when i look in Solution manager RZ20-->CCMS monitoring templates, i can't see any data for the the ECC system.
I guess i am doing something wrong. Am i looking in the wrong monitor set?
As additional information: Solution manager (SMD) and ECC (ECD) use different transport domains / transport groups. I dont know if this makes a difference.
Can some one please help.
Regards,
Prashant

Hi Prashant,
if I understand correctly your system shows only MTEs from R/3 Stack, not from the OS side, pls check your SAPOSCOL. Are the data in OS06 in your remote system correct and do you see the current data, refredhed all 10 seconds?
To check your environment, pls do the following:
in th efirst step check in RZ21 > in the Topology part the System Overview for your system connection to your back end system. Are the Read Destination Data RFC and the Destination Analysis RFC correct and works the authority chek fine?
In the second step pls check in RZ21 > in the Agents for Remotey SAP Systems part; are there registered your remote ccms agents correctly and works the connection test.
Stop the agents and in your RZ20 monitor pls enter STAT in your command field. Are there displayed for your MTE nodes the read RFC destinations?
Start the agents and and in your RZ20 monitor pls enter STAT in your command field. Are there displayed for your MTE nodes the CCMS Agent RFC destinations?
To rebuild the Monitor in the CEN system you could try to reset the node of your remote system in the warm up status > go in the remote system to RZ1 > go to local segments > change to edit > select your segments > reset segment in "WARMUP" status.
In the CEN system you coul try to go to the edit mode for the Agents for Remot SAP Systems > select your remote system and push the button Reinitialize Agents
In the back end system you can try to delete all MTEs in RZ21 > menu Technical Infrastructure > Reorgenize Segment Table > select the options with "ALL" in the CEN and the remote system to reorgenize all data.
Could you pls post for the missing MTEs a screenshot on the one side from the CEN system and on the other side from the remote system...
and last but not least you could try the following for missing OS MTEs
delete ALALERTS, ALMTTREE and ALPERFHI in /usr/sap/ccms/<SID>_<SNR> and check in the agents folder all trace and log files for errors.

Not able to find Central System Administration

Hi,
We are trying to configure the Central System Administration in our Soultion Manager version 4.0 for the Development server running on ECC 6.0.
We have created systems, generated RFC's, defined logical system and and also created Solution Landscape for the Development Server in the Solution Manager System.
But when we go to the transaction DSWP>Eneter the Development Solution Landscape>Solution Minitoring>System Monitoring/ Administration>Operation Setup, We rae unable to find the Central System Administration configure icon.
Please suggest the possible reason for this and a way to view the Central System Administraion configure Icon.
Thanks and Regards,
Abdul Khyoom A.

Hi Abdul,
CSA Setup should be visible via this path:
- dswp
- open solution landscape
- choose Operations Setup -> Solution Monitoring -> System Administration
- here you should see for each system in the Landscape an entry for: Central System Administration
What's the Support Package Level of you SolMan system?
Best regards,
Ruediger

CCMS alert monitoring data for ORACLE is not visible in Central system

Hello,
I have installed sapccm4x agents in the CI of the Satellite System and it shows in the Central System as sucessfully registered under Agents for remote System and the RFC Connection test is also successfull. When i check in RZ20 in Central System not all the predefined monitors are visible of the Satellite System in the Central System and mainly the MTE element ORACLE. The database,CI and other instances on the Satellite System are installed on separate hardware. As said the database is installed not with the CI but a standalone.
Please let us know what needs to be configured in order to get the MTE element of ORACLE to show in the Central System.
Thanks,
Vinod Meno

Bhudev,
Thanks for the quick respose..
1.Sapccmsr agent is installed on Java standalone server and it has been sucessfully registered and running and we can grep the process to see its state as well as in the Central System i can see under ccms agents for remote systems it shows and the RFC connection test is also sucessfull.
2.Yes we are sending the data from the DB to CI first,but we also want the data visible in the Central System mainly for the MTE element Oracle.The filesystem of the Satellite Systems shows up in the Central System but i am intrested to capture the MTE element Oracle since we plan to monitor the tablespaces threhold .
I am thinking of opening an SAP message but i am trying to see if i can get some info that can give me the result.
Regards,
Vinod Menon

Error:invalid central system in requet approval process(AE)

Hi,
In AE while approving the request, in final stage i am getting an error "invalid central system ".anyone please help me to know the solution for this?

You need to check whether the system for which you are doing the provisioning is a part of your CUA system. If not then Go to the
Configuration tab-> Workflow-> CUA System.
In the system change the value to the "-Select-". Then you will be able to create the request for your system.

EP Central System + Dialog Instance Installation options

Hi Friends
For my production EP 6.0 WAS 6.40-Java instance I am getting 3 AIX servers, say server DBserver, Appserver1 & Appserver2, we want to install the database & CI on the DBserver, the other 2 servers need to serve the role of Application servers to the DB+CI server.
In our SAP R/3 Production systems we don't allow the users to login to the server hosting the (database+CI) & we allow them to login only to the appication servers, I want to do a similar setup for my Production portal landscape & require that the portal users are load-balanced using the SAP Web Dispatcher to the 2 application servers.
I have 2 questions on which installation options to choose to achieve the above objective.
1. Can somebody check & confirm if the below mentioned Installation sequence is correct for Installing the WAS on the 3 servers.
a) Using Installation option "Java System ->Oracle->Central System->Custom Installation-Java system" for the DBserver.
b) Installation option "Java System ->Oracle->Central System->Dialog Instance Installation" for Appserver1 & Appserver2.
2. Can somebody advice how do I need to install the portal on the 3 servers so that the above objective of load-balancing the users to the 2 App servers is met.
a) Do I need to install portal only on the DB+CI server & then the portal platform will be setup on the 2 App servers as well or
b) Can I install the portal separately on the 2 portal App servers.
Thanks & Rgds,
Abhishek

Hi Friends
Any replies will be appreciated & also rewarded with points.
Thanks & Rgds,
Abhishek

Regarding authorization in solution manager for Central system monitoring

Hi,
I want to Prevent users from deleting Task logs in central system monitoring
in solution manager
I have assigned the roles SAP_SV_SOLUTION_MANAGER_DISP
But it gives display authorization for everything unable to keep track of
changes in monitoring
Can anyone please help me to prevent users from deleting task log history
Since I have to keep track of one month data
What can be the suitable role for it ? or what authorization objects i should
make a change to prevent deleting tasklog.
Kindly help me in this regard
Regards
Sanjeev.S

Thanks for your prompt reply
I am not saying about SDDCN
In transction solution_manager => opertation set up = > central system
administation
we will do manual monitoring for sattelite systems in this path. what we monitored
will be entered in task log history.
So what can be the suitable role to prevent the deleting of the task log history.
There is option delete task history. if any one by mistake clicked on that ,all the
records of monitoring will be lost.
so kindly suggest me a suitable solution

Apple TV connecting to A/V (Niles central system)

We have centralized system w/switch that we feed all A/V too and we want to add the apple TV & remove our DVD,CD, etc? Can we do this?

The apple TV connects directly to your HDTV via HDMI, or by using a switch when you have limited ports.

Unable to switch Central System Administration into Change Mode

Hi,
I am bit rusty on the Solution Manager - Central System Administration.
While experimenting with my Solman system I did the following.
1. Logged into Solman and started transaction Solution_Manager
2. Switched to the Solution that has been configured and then followed Operations Setup->Solution Monitoring -> System Administration -> Central System Administration for <My System> (here my system is the system I wish to monitor).
3. After following the navigation to the selected item as described in step 2, I selected the menu items Session Components->Complete.
4. After this action of selecting the Complete session from the menu, my Central System Administration for <My System> is continuously showing Display Mode.
I am unable to switch back the system to Change Mode.
Am I missing something ? What needs to be done ?
Regards,
Siddhesh

Siddhesh Ghag wrote:>
>
> 3. After following the navigation to the selected item as described in step 2, I selected the menu items Session Components->Complete.
>
> Regards,
> Siddhesh
This was the wrong step. By setting the Session Component to "Complete", no further changes are allowed (and you receive a pop-up).
The procedure to reopen the session component is not documented for customers. Please create a customer message on SV-SMG-MON-CSA, open the service connection and provide logon information.
You might state my name in the message, I will then assist the message processor.
Best regards,
Ruediger Stoecker

CUA Roles residing in Child system are not showing in Central System

I just hooked up CUA today and have linked 8 child systems to the central system. The 8 child system users and roles have already been established in the child systems. Do I need to run program susr_zbv_get_receiver_profiles in each of the child systems to get the roles in the child systems to show up in the Central System for each user? I tried this in one child system and it worked.
Or is there something else I need to do without going into each child system?
I tried this program susr_zbv_get_receiver_profiles in the Central system but it did not work.

are you looking for roles or profiles? profiles will not show up in the central system. If you run SCUL do you see anything? when you first added the child system did you use an SAP user that had the proper permissions? In both the child and the parent? There are two roles that the user must belong to to add the child to the parent they are SAP_BC_USR_CUA_SETUP_CENTRAL and SAP_BC_USR_CUA_CENTRAL.
If you have any question about the permissions of these user at the time you added the child to the parent I'd delete the child and re-add with either the above roles or a user with SAP_ALL in BOTH the child and the parent systems

Distributed vs. Central System

Similar Messages

Maybe you are looking for