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

Similar Messages

Error in Central Instance installation ERP 2005 Distributed System

Hi All,
I am currently trying to install Central Instance for ABAP Distributed system on AIX.
During the installation I encounter this error message:
WARNING 2006-09-20 14:22:39
Could not determine a valid JAVA_HOME directory from the environment.
INFO 2006-09-20 14:22:39
Creating file /tmp/sapinst_instdir/ERP/SYSTEM/ORA/DISTRIBUTED/AS-ABAP/CI/FormalPasswordCheck.log.
ERROR 2006-09-20 14:22:39
FSL-04008 Unable to access application bin/java. A file or directory in the path name does not exist.
Before the installation SAPINST_JRE_HOME and JAVA_HOME variables were set to /usr/java14.
Please help.
Thanks,
Chie

Hi Chie,
definately wrong
the output should be similar to this one:
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
Classic VM (build 1.4.2, J2RE 1.4.2 IBM AIX 5L for PowerPC (64 bit JVM) build caix64142sr1aifx-20051020 (SAP 142SR1a + 88494 + 84428 + 83602 + 89528 + 90372 + 88233 + 66827 + 92741 + 95636 + 96556 + 96581) (JIT enabled: jitc))
note the "64 bit" and "SAP" in there...
You can download it here:
https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=javasap
Regards,
Pascal
PS: please give points for helpful answers

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.

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

RT Target Resources and Distributed System Manager

Hello all,
Does anyone know of some potential reasons why an RT target might not publish its CPU and memory usage? This particular target is a cFP-2200 running a complete installation of FieldPoint 6.0.2 (RT 8.6) including System State Publisher. For some reason I can't view the memory usage on this target and I haven't been able to figure it out.
Thanks in advance,
Jim

Hello Hillman,
Thanks for your reply! I sort of
figured that this one would go by the wayside and not be answered.
Actually, I'm not using RTSM; I'm using the Distributed System Manager
- It's a relatively new tool that ships with LabVIEW RT 8.6. In my
humble opinion, I find it to be much superior to the RT System Manager
in its own way. The only downside, really, is that you can't log with
it natively, but there are ways around that.
You've
got some great suggestions. I definitely was using the correct IP, I
could target it with LabVIEW because I loaded my application on there,
and I didn't get any boot errors when I connected. You're absolutely
right, too, that the CPU is always maxed out at 100%.
I
guess I was perplexed because, one moment I could see the resources in
DSM (is that acronym valid yet?), and after I reloaded the software
from scratch, I could see lots of variables on the target, but for some
reason the system resources weren't showing up. After no one jumped on
the question, I went back to tweaking various settings and realized
that I hadn't rebooted after enabling VI Server. In fact, I didn't
think that VI Server would be the issue and hadn't really thought of
checking there. My reasoning followed that, if all of the other
variables showed up, surely it wouldn't be VI Server, but that fixed it.
I definitely appreciate your getting back to me, though.
Cheers,
Jim

How to use DB13 on a distribute system

HI,
We install SAP R3 enterprise 4.7 SR1 as distribute system on 3 different windows 2003 server, Central Instance , Database Instance and Dialog Instance. As I understood, we need to use sm59 to setup the RFC destination so that DB13 can work well.
So I manually create a RFC destination SAPXPG_DBDEST_DB01 and only test successfully after I install a new dialog instance on database server and connect to this dialog instance. I tried to create SAPOSCOL_DB01 with the folow parame
Connect Type : T
Activition Type: Explicit
Program: saposcol
target: db01 ( db01 could be resolved to IP address and ping well)
but the test is unsucessful.
when I run db13 to backup, it looks the brbackup run on the central instance not on the database instance.
Any one can help to handle this problem or give me some notes about a distribute system RFC setting?
Your kindly help will be appreciated!
Regards

there is not any relation of saposcol program to database backup. as per my understanding, this program is used to collect the data, for database backup from DB13 program sapxpg should be called, so check the SM59 that the connection of this program is working properly or not.
Sap Note : 446172
Regards
Subhash
Edited by: Subhash Chandra on Dec 11, 2008 2:56 PM

DB 13 error in distributed system (brconnect)

hi expert,
I installed distributed system .
DB instance is Unix (hp) and Central instance is NT.
I install standalone gateway in DB host for DB13 and then configured TCP/IP detination SAPXPG_DBDEST_<DBhost> .
I checked SAPXPG_DBDEST_<DBhost> connection is OK.
but check db error in DB13
=================================================================
Job started
Step 001 started (program RSDBAJOB, variant &0000000000020, user ID ADMIN)
No application server found on database host - rsh/gateway will be used
Execute logical command BRCONNECT On host stwdbdev
Parameters: -u / -jid CHECK20100624162600 -c -f check
BR0801I BRCONNECT 7.10 (19)
BR0152E Environment variable ORACLE_SID is not set
BR0806I End of BRCONNECT processing: cedngqgn.log2010-06-24 16.26.01
BR0280I BRCONNECT time stamp: 2010-06-24 16.26.01
BR0804I BRCONNECT terminated with errors
External program terminated with exit code 3
BRCONNECT returned error status E
Job finished
==================================================================
previous this error, `brconnect not found error` is corrected by copy br* kernels to gateway kerenl directory.
I thought brconnect is started by gateway`s <sid>adm user so I gave environment value "ORACLE_SID,ORACLE_HOME,SAPDATA_HOME" to gateway`s <sid>adm .
but error is same.
finally, I want to know who execute brconnect in DB instance and how can I correct this problem.
thanks and regards
jun

hi,
I log on SAPServicePID but db13 error is same
===========================================
Job started
Step 001 started (program RSDBAJOB, variant &0000000000024, user ID ADMIN)
No application server found on database host - rsh/gateway will be used
Execute logical command BRCONNECT On host stwdbdev
Parameters: -u / -jid CHECK20100625125243 -c -f check
BR0801I BRCONNECT 7.10 (19)
BR0152E Environment variable ORACLE_SID is not set
BR0806I End of BRCONNECT processing: cednkvdj.log2010-06-25 12.52.43
BR0280I BRCONNECT time stamp: 2010-06-25 12.52.43
BR0804I BRCONNECT terminated with errors
External program terminated with exit code 3
BRCONNECT returned error status E
Job finished
===============================================
and SAPServicePID environment variant
==============================================
C:\Documents and Settings\SAPServiceDPI>set
ALLUSERSPROFILE=C:\Documents and Settings\All Users
APPDATA=C:\Documents and Settings\SAPServiceDPI\Application Data
CLIENTNAME=MYCOM
ClusterLog=C:\WINDOWS\Cluster\cluster.log
CommonProgramFiles=C:\Program Files\Common Files
CommonProgramFiles(x86)=C:\Program Files (x86)\Common Files
COMPUTERNAME=STWDMDDEV
ComSpec=C:\WINDOWS\system32\cmd.exe
FP_NO_HOST_CHECK=NO
HOMEDRIVE=C:
HOMEPATH=\Documents and Settings\SAPServiceDPI
LOGONSERVER=
STWDMDDEV
NUMBER_OF_PROCESSORS=2
ORACLE_HOME=/oracle/DPI/102_64
ORACLE_SID=DPI
OS=Windows_NT
Path=C:\Program Files (x86)\Windows Resource Kits\Tools\;C:\WINDOWS\system32;C:\
WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Microsoft Network Monitor 3\;C
:\Admin\bin;C:\Program Files\OmniBack\bin\
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
PROCESSOR_ARCHITECTURE=AMD64
PROCESSOR_IDENTIFIER=EM64T Family 6 Model 26 Stepping 5, GenuineIntel
PROCESSOR_LEVEL=6
PROCESSOR_REVISION=1a05
ProgramFiles=C:\Program Files
ProgramFiles(x86)=C:\Program Files (x86)
PROMPT=$P$G
SAPDATA_HOME=/oracle/DPI
SAP_DIR_PERF=D:\usr\sap\PRFCLOG
SESSIONNAME=RDP-Tcp#24
SystemDrive=C:
SystemRoot=C:\WINDOWS
TEMP=C:\DOCUME1\SAPSER2\LOCALS~1\Temp\1
TMP=C:\DOCUME1\SAPSER2\LOCALS~1\Temp\1
USERDOMAIN=STWDMDDEV
USERNAME=SAPServiceDPI
USERPROFILE=C:\Documents and Settings\SAPServiceDPI
windir=C:\WINDOWS
==========================================================================
brconnect working is sure by SAPServiceSID??
why error is still??
regards
jun

Installation ERP 6.0 EHP4 on a distributed system

Hello,
We are in process of the ERP 6.0 EHP4 installation (abap only) on a distributed system. The database is already installed (MaxDB). After that we installed the ERP6 EHP4 from the DVD ERP 6.0 EHP4 READY. After the installation was successfully done, we found out that the EHP4 was not installed, just the ERP 6.0 (600). So why the sapinst did not ask us where he can find the EHP4 packages?
If we tried the installation with sapinst as a central system (host and db on same server) it asks about the installation export of the EHP4. So thats a little bit strange..
Any ideas?

Hi,
When you install ERP 6.0 EHP4 system then first EHP4 Ready system will be installed in which all netweaver base components like SAP_Basis, SAP_ABA etc. will be on 7.01 release and all ERP components will be on 600 release. And this system is called as EHP4 Ready system. After that you have to upgrade your EHP4 Ready System to EHP4 level.
This restriction applies because when you will upgrade EHP4 Ready system then you can upgrade only those Technical Usage which you want to use on the system instead of upgrading all components. So, When you will upgrade your EHP4 Ready system , then you have to download packages & stack xml file from MOPZ in solution manager. In MOPZ you have to select Central Components which is mandatory and it contains SAP_APPL and EA-APPL package, once it will be upgraded to 604 level then your system will be EHP4 system. If apart from Central Application technical usage, you want to install any other Technical usage then you can select them in MOPZ and can upgrade in one go.
For more information, check Technical FAQ and How to install eHP4 document on http://service.sap.com/erp-ehp.
Thanks
Sunny

Distribute System - Error when run tcode DB13 - Job Log - Cancel

i have two server and I installed SAP ERP 6.0 (Application ABAP) on two server base on Distribute System model
Server A : I installed Global Host Preparation and Central Instance
Server B : I installed Database Instance
On server A, I exported /sapmnt, /usr/sap
On server B, I mounted /samnt, /usr/sap from Server A
Process Installation -> OK
and finally , I logged in SAP through server A -> OK
But when i run tcode DB13 to run Action Pad : Cleanup Logs, Check and Update Optimize Statistic ....etc -> Cancel
-> with error in tab Job Log below
20.01.2010     14:37:07     Job started
20.01.2010     14:37:07     Step 001 started (program RSDBAJOB, variant &0000000000041, user ID BASIS)
20.01.2010     14:37:07     No application server found on database host - rsh/gateway will be used
20.01.2010     14:37:07     Execute logical command BRCONNECT On host sapree2
20.01.2010     14:37:07     Parameters: -u / -jid CLNUP20100120143706 -c -f cleanup
20.01.2010     14:37:29     SXPG_STEP_XPG_START: is_local_host: rc = 403
20.01.2010     14:37:29     SXPG_STEP_XPG_START: host = sapree2
20.01.2010     14:37:29     SXPG_STEP_XPG_START: is_local_r3_host: rc = 802
20.01.2010     14:37:29     SXPG_STEP_XPG_START: RFC_TCPIP_CONNECTION_OPEN: rc = 1003
20.01.2010     14:37:29     SXPG_STEP_COMMAND_START: SXPG_STEP_XPG_START returned: 1.003
20.01.2010     14:37:29     SXPG_COMMAND_EXECUTE(LONG)
20.01.2010     14:37:29     <timestamp> = 20100120143729
20.01.2010     14:37:29     COMMANDNAME = BRCONNECT
20.01.2010     14:37:29     ADDITIONAL_PARAMETERS = -u / -jid CLNUP20100120143706 -c -f cleanup
20.01.2010     14:37:29     LONG_PARAMS
20.01.2010     14:37:29     OPERATINGSYSTEM = ANYOS
20.01.2010     14:37:29     TARGETSYSTEM = sapree2
20.01.2010     14:37:29     DESTINATION
20.01.2010     14:37:29     SY-SUBRC = 1003
20.01.2010     14:37:29     SXPG_COMMAND_EXECUTE failed for BRCONNECT - Reason: program_start_error: For More Information, See SYS
20.01.2010     14:37:29     Job cancelled after system exception ERROR_MESSAGE
and then , I checked tcode SM59 -> TCP/IP Connection -> SAPXPG_DBDEST_SAPREE2 -> Test Connection -> not OK with error
Logon     Connection Error
Error Details     Error when opening an RFC connection
Error Details     ERROR: timeout during allocate
Error Details     LOCATION: SAP-Gateway on host sapree1.reecorp.com / sapgw00
Error Details     DETAIL: no connect of TP sapxpg from host sapree2.reecorp.com after 20 sec
Error Details     COMPONENT: SAP-Gateway
Error Details     COUNTER: 22
Error Details     MODULE: gwr3cpic.c
Error Details     LINE: 1973
Error Details     RETURN CODE: 242
Error Details     SUBRC: 0
Error Details     RELEASE: 701
Error Details     TIME: Wed Jan 20 14:42:39 2010
Error Details     VERSION: 2
thanks for your advice

Hi,
For installation you can refer the standalone gateway installation guide available under http://service.sap.com/instguides
For operating the standalone gateway you can use the below link
http://help.sap.com/saphelp_nw04/helpdata/en/bb/9f13194b9b11d189750000e8322d00/content.htm
Cheers.....,
Raghu

Database Instance installation in Distributed System?

Hi gurus,
When you install a distributed system(SQL Server, AS ABAP), after install the central service instance(SCS), you will perform the database instance installaiton. For this step, can you still run the installation on the SCS host for installing it or you must change to DB host and start the installation at DB host? My memory is i can do it(install DB instance from the SCS host) a long time ago, but with new new SR3, i cannot do it. Any body has any idea on it, thanks.
Peter

so why dont you take central system option.. if you want put both DB and center server on one system...
If I am not replying in the line what your expecting.. please explain detailedly how you want install your system...

Distributed system NW7.0 Ehp1

hi,
I am installating NW7.0 EHP1 distributed system for AS ABAP only.
Also we plan to execute creating Virtualhost.
Already DNS is registered with
db<sid> 10.10.1.10
ci<sid> 10.10.1.20
and i have drive to accomodate below things.
C-OS drive
G-DB data
H-DB Log
I-SAP binaries
Now i started to install first DB instance and then Central instance.
so started first db instance installation using "sapinst.exe SAPINST_USE_HOSTNAME=db<sid>
Selected option <Custom>, and immediately next screen asks me for SAP Profile directory.
What should i give here? Should i have to create usr/sap directory already in I Drive?
while installing database instance, i was asked to place the TEMPDB in C:Drive. when it will asked
please suggest me if i am wrong.
regards

hi ashok,
thanks for your reply.
In SAP tree, i have below order.
-Global host preperation
-DB instance
-CI instance
should i have to follow the order.?
regards

Error in Export of ABAP+JAVA Distributed system

Hi
I am exporting an ABAP(ECC 6.0)+JAVA Add-in system .
I have started the database instance export from the database instance host .
I am geting the following error :
An error occurred while processing service SAP ERP 6.0 Support Release 3 > Software Life-Cycle Options > System Copy > MS SQL Server > Source System Export > Distributed System > Based on AS ABAP and AS Java > Database Instance Export( Last error reported by the step :uncaught exception: nw.usageTypes.utlError: Execution of UTL tool 'D:\j2sdk1.4.2_13-x64\bin\java.exe -classpath D:\usr\sap\ERS\SYS\global\sltools\sharedlib\launcher.jar -showversion -Xmx256m com.sap.engine.offline.OfflineToolStart com.sap.sl.ut.manager.UtlMain
sdsapdbsbx1/sapmnt/ERS/SYS/global/security/lib/tools;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/sap.comsl.ut.infoprovider_lib.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/sap.comsl.ut.manager.offline.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/antlr.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/exception.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/jddi.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/logging.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/offlineconfiguration.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/opensqlsta.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/tc_sec_secstorefs.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/sap.comtcsdtcvlimpl.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/SDMutil.jar;D:/usr/sap/ERS/SYS/global/sltools/sharedlib/SLUtil.jar;D:/usr/sap/ERS/SYS/exe/nuc/NTAMD64/mssjdbc/sqljdbc.jar -export -type=keydb "-expfile=C:/Program Files/sapinst_instdir/ERP/LM/COPY/MSS/EXP/DISTRIBUTED/AS/EXPDB/usages_data.xml" -log=UTL_load_usages.log -sid=ERS -dsn=jdbc/pool/ERS -ssprops=D:/usr/sap/ERS/SYS/global/security/data/SecStore.properties -ssk=D:/usr/sap/ERS/SYS/global/security/data/SecStore.key' aborts with return code 1. Check 'UTL_load_usages.log' and 'C:/Program Files/sapinst_instdir/ERP/LM/COPY/MSS/EXP/DISTRIBUTED/AS/EXPDB/UTL.java.log' for more information. (in script unknown, line 0: ???)).
The file UTL.java.log is as follows:
java version "1.4.2_19-rev"
Java(TM) Platform, Standard Edition for Business (build 1.4.2_19-rev-b07)
Java HotSpot(TM) 64-Bit Server VM (build 1.4.2_19-rev-b07, mixed mode)
java.lang.NoClassDefFoundError: com/sap/engine/offline/OfflineToolStart
Please help.
Regards
Ratnajit

Hi
with 1.4.2_18 and 1.4.2_19 we are currently having massive stack overflow check the below link for more clarifications
X64 java 1.4.2_18 for SAP
Regards
Uday

Adapter Engine has wrong hostname after HSC with Distributed System

I have an interesting situation where I have performed a homogeneous system copy from a standard system to a distributed system. The only that really has changed is the database server name. I performed the global host install, the database instance import, and then the Primary Application Server install.
The strange error is that the adapter engine after the install shows the hostname of the database server. The SLD CIM Instance data shows the hostname of the database server as an adapter engine. The correct hostname for the adapter engine is there also, but is not updated by the SLD Data Supplier/or RZ70 update.
The SLD entries for the ABAP and Java stacks are never updated after this copy.
I'm pretty much stumped on this one. I think I picked the correct options for the install.

Hi,
you said that you have done homogenous system refresh. As a check please follow the below note and let me know if it is helpful.
SAP Note 1286149 - Configuration Wizard: PI Self Test for NetWeaver
Also Please go through the doc regarding post installation steps for PI
[http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/60d2a693-9504-2b10-5ba7-82964bd8370e]
Please let me know the result.
Regards,
Venkata S Pagolu

About HR payroll posting FI in the distributed systems

Hi All,
I have a question about HR payroll post FI in the distributed system(both are Ecc6.0). There are difference In configuration between Ecc6.0 and lower version(like 4.70, 46C) ?
Best regards,
Sap leaner

Hi,
Please see all the difference in service.sap.com
Hope this helps,
Reward points if helpful,
Thank You,

I need help about distributed systems

Dear guys...
I search for answer about these question but not found the answer ,please help me?
1.What are the main objective and key issues of distributed systems address by Java EE and who can benefit from this system compared to other systems?
2. what is about Java EE based on distributed system evaluation criteria such as transparencies, reliability, security, performance and etc. I need summary?

oh .

Distributed System and Central System

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