Central instance and SAP instance
hello,
Im confusing with Central Instance (CI) and SAP instance (Application Instance)
According to my understanding, i think SAP instance is running on all the Aplication servers. (if having 4 Application servers, in all those servers, SAP instance is running concurrently)
But Central instance is running on 1 of the Application servers only.
- How will the SAP decides on which Application should run the central instance.
Will that CI change automatically time to time.... or do we need to allocate 1 Application server as CI server, when doing the installation.
Is there any relationship between Message server and Central instance.
Does CI contains message services and enqueue service...
plz help me to reslove these issues
Rgds,
Edited by: zerandib on Apr 25, 2010 10:45 AM
*CENTRAL INSTANCE: The SAP Central Instance (CI) is a standalone SAP Basis
unit which provides services used by clients connected to the SAP system.
Among these services are the Message server and the Enqueue server, which
run only on the single SAP Central Instance. The Message server maintains a
list of all available resources in an SAP system, determines which instance
a user logs on to during a client connect, and handles all communication
between SAP instances. The Enqueue server is used by SAP to administer the
lock table in a distributed SAP system. If the CI
server hosting the Enqueue service fails, all SAP transaction locks that
have not yet been committed are lost. R/3 guarantees that no user can
perform a transaction while the Enqueue service is unavailable in order to
guarantee database consistency. Placing the Enqueue and Message services
together on the CI is recommended by SAP since the Message service must
always access the Enqueue service for inter-process communication. These
services provide critical SAP functions that, by existing only in the SAP
Central Instance, suffer from being a single point of failure in the SAP
environment. Obviously, the CI, which contains the Enqueue and Message
services, needs to be restarted as quickly as possible following a failure
so that normal operations can resume.*
Central Instance Has Message server and an enque work Process,
Application Server or dialog Server : Does not have message
server but have work process to reduce the Load on CI*
Similar Messages
-
Difference Between central instance And application instance
Hi every body can any one tell me that
what is the difference between Central instance and Application instance.
If i am using 4.7 ee with orcale data base.Check these links
http://oreilly.com/catalog/sapadm/chapter/ch01.html
Basically these terms comes when you are working on live servers where all the users log into to do their daily work.
We says when we want to distribute the workload on servers we requires central instance and application servers.
Normally it is not known to common users where they are logging into...but they can login directly usign the specific Instance details of servers.
Please see this also
http://help.sap.com/saphelp_nw2004s/helpdata/en/c4/3a64e8505211d189550000e829fbbd/frameset.htm -
Can database Instance and SAP Central instance can be on two seperate Opera
Hi Guys
Can Database Instance and Central instance can be on two different hosts with two different operating systems? Can anybody provide links for different SAP architecture options.
Thank YouHi,
In every installation guide, you will find the a section " Planning " where you architect How to Distribute Instances to Hosts.
Hope my reply has answered you.
Rgds
Radhakrishna D S -
Differnce between central instance ,dialog instance and application instanc
Hi all
Please explain me what is central instance. what is it differnce betwenn the
other instances like dilaog instance ,apllication instance.
What is the exact use of having many instances ?
regards
Sanjeev.SHi Sanjeev,
First of all let me Clarify between Cental instance(CI)and Central Service instance(SCS). When you install NW04/NW04s systems on WIndows, when you open you windows console, you would first find the SID name that you have installed and when you expand this you'll find 2 instances. When you expand the first instance you'll find that there are message server and Enqueue server listed. This instance is called as Central Service instance or simply called SCS. You can look at the folder structure /usr/sap/<SID>/.
Now the second instance is called as Central instance, when expanded you would see a SDM, a dispatcher and a server node. This is the instance which processes all your requests.
Now answering your question about Dialog instance, When the CI is overloaded, i.e. your dispatcher is overloaded and your server is overloaded , you would install a dialog instance, which means that the database need not be installed for the Dialog instance and it can be on any system. While installing the Dialog instance it would ask you which Cental instance I have to refer, then you would be giving the necessary system to which you have created a dialog instance.
Giving a graphical view,
SID < J2E>
< DATABASE>
<hostname>00 message server
enqueue server
<hostname>01 SDM
dispatcher
server0
This is your one SAP system. Now you feel that this system is overloaded with lot of users, any there are many user who will be logging in again, so what you would do is install a dialog instance which would be referiing to J2E database but will have its own dispatcher and server0. SDM, message server and enqueue server are only one per systems.
Now the dialog instance for J2E would look like this
SID < K2E>
<hostname2>01 dispatcher
server0
Dialog instance is mainly for load balacing, now you can access the database of J2E by typing a different URL i.e. of K2E and hostname2 but still accees the data of the J2E. The communication between Dialog and Central instance is thru message server.
In case you find it difficult to push thru, please let me know.. -
How to use ADS on SolMan instance and SAP standard PDF forms from ERP
Hi there
We have installed and configurated the ADS service on our Solution Manager (SolMan) Instance called SD1.
SolMan Info: SAP Solution Manager 7.0; Stack 17; Java-Stack installed; SAP Netweaver 7.0
All ADS test reports can be executed successfully:
FP_TEST_00
FP_PDF_TEST_00
We have linked our ERP landscape (e.g. system ED1) to ADS service running on SolMan.
ERP Info: ECC 6.0; Stack 13; no Java-Stack installed
All ADS test reports can be executed successfully:
FP_TEST_00
FP_PDF_TEST_00
We want to print PDF documents from SAP standard applications on our ERP landscape. Therefore we want to use standard PDF forms provided by SAP and also available in transaction SFP (e.g. form ISSR_NW670_RX_PDF).
Problem: When we try to create a PDF document from the application we get an error message:
Processing exception during a "Render" operation.#Request start time: Mon Feb 02 13:42:08 CET 2009#com.adobe.ProcessingException: Problem accessing data from Destination: dest:FP_ICF_DATA_ED1//sap/bc/fp/form/layout/ISSR_NW605_PDF.XDP?fp-language=DE&fp-cac
I have also checked the trace (see below) and it seems that the system tries to get the form from the SolMan system and not from the ERP system. But the form is only installed on ERP system.
Are there any ideas how to solve this problem?
Thanks.
Begin trace
Adobe Document Services Mon Feb 02 14:30:15 CET 2009 Trace Results:
Request initialization (including DOM construction and validation) processing elapsed time = 0 ms.
Begin operation: Render, elapsed time = 0 ms.
Gather input streams and options processing, elapsed time = 13 ms.
Form template and form license processing elapsed time = 13 ms.
Problem accessing data from Destination: dest:FP_ICF_DATA_ED1//sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE&fp-cacheinfo=2006-06-26T13%3a10%3a38Z%2406c26758-d4b6-4818-8928-bbed36a10089%240%24de%24v0%2e9
com.adobe.ads.destination.DestinationException: File Not Found while reading Dest URL: http://:/sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE
Fehler bei der Formularprozessierung (Workbench)
Exception Stack Trace:
com.adobe.ads.destination.DestinationException: File Not Found while reading Dest URL: http://:/sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE
Fehler bei der Formularprozessierung (Workbench)
at com.adobe.ads.destination.Destination.readUrlStream(Unknown Source)
at com.adobe.ads.destination.Destination.readTemplate(Unknown Source)
at com.adobe.ads.data.DestStreamData.getByteArray(Unknown Source)
at com.adobe.ads.data.StreamData.getData(Unknown Source)
at com.adobe.ads.data.StreamData.getRemoteData(Unknown Source)
at com.adobe.ads.operation.support.RemoteRenderer.renderAll(Unknown Source)
at com.adobe.ads.operation.support.RemoteRenderer.renderAll(Unknown Source)
at com.adobe.ads.operation.Render.renderWithoutCache(Unknown Source)
at com.adobe.ads.operation.Render.execute(Unknown Source)
at com.adobe.ads.operation.ADSOperation.doWork(Unknown Source)
at com.adobe.ads.request.Request.processOperations(Unknown Source)
at com.adobe.ads.request.Request.process(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.processRequest(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.rpData(Unknown Source)
at com.adobe.AdobeDocumentServicesLocalLocalObjectImpl0_0.rpData(AdobeDocumentServicesLocalLocalObjectImpl0_0.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:60)
at java.lang.reflect.Method.invoke(Method.java:391)
at com.sap.engine.services.webservices.runtime.EJBImplementationContainer.invokeMethod(EJBImplementationContainer.java:126)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:157)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:79)
at com.sap.engine.services.webservices.runtime.servlet.ServletDispatcherImpl.doPost(ServletDispatcherImpl.java:92)
at SoapServlet.doPost(SoapServlet.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(AccessController.java:215)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
End operation: Render, elapsed time = 44 ms.
Begin operation: Render Log, elapsed time = 44 ms.
Completed Merge. elapsed time = 72 ms.
End operation: Render Log, elapsed time = 77 ms.
Problem accessing data from Destination: dest:FP_ICF_DATA_ED1//sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE&fp-cacheinfo=2006-06-26T13%3a10%3a38Z%2406c26758-d4b6-4818-8928-bbed36a10089%240%24de%24v0%2e9
com.adobe.ads.destination.DestinationException: File Not Found while reading Dest URL: http://:/sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE
Fehler bei der Formularprozessierung (Workbench)
Exception Stack Trace:
com.adobe.ads.destination.DestinationException: File Not Found while reading Dest URL: http://:/sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE
Fehler bei der Formularprozessierung (Workbench)
at com.adobe.ads.destination.Destination.readUrlStream(Unknown Source)
at com.adobe.ads.destination.Destination.readTemplate(Unknown Source)
at com.adobe.ads.data.DestStreamData.getByteArray(Unknown Source)
at com.adobe.ads.data.StreamData.getData(Unknown Source)
at com.adobe.ads.data.StreamData.getFileDataBuffer(Unknown Source)
at com.adobe.ads.remote.EJB_PDFAgent.addAttachments(Unknown Source)
at com.adobe.ads.remote.EJB_PDFAgent.embedFiles(Unknown Source)
at com.adobe.ads.operation.support.RenderErrorLog.embedCollateralFiles(Unknown Source)
at com.adobe.ads.operation.support.RenderErrorLog.embedRenderCollateral(Unknown Source)
at com.adobe.ads.operation.Render.handleRenderException(Unknown Source)
at com.adobe.ads.operation.Render.execute(Unknown Source)
at com.adobe.ads.operation.ADSOperation.doWork(Unknown Source)
at com.adobe.ads.request.Request.processOperations(Unknown Source)
at com.adobe.ads.request.Request.process(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.processRequest(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.rpData(Unknown Source)
at com.adobe.AdobeDocumentServicesLocalLocalObjectImpl0_0.rpData(AdobeDocumentServicesLocalLocalObjectImpl0_0.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:60)
at java.lang.reflect.Method.invoke(Method.java:391)
at com.sap.engine.services.webservices.runtime.EJBImplementationContainer.invokeMethod(EJBImplementationContainer.java:126)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:157)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:79)
at com.sap.engine.services.webservices.runtime.servlet.ServletDispatcherImpl.doPost(ServletDispatcherImpl.java:92)
at SoapServlet.doPost(SoapServlet.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(AccessController.java:215)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
Encountered a problem embedding Render collateral:
PDFException getting file from PDF Document.
Error Log written to server: /usr/sap/SD1/SYS/global//AdobeDocumentServices/renderErrorLog/errorFiles/2009.02.02.143015SAFPCP00RES.pdf
Error Log file "2009.02.02.143015SAFPCP00RES.pdf" written to /usr/sap/SD1/SYS/global//AdobeDocumentServices/renderErrorLog/errorFiles
Processing exception during a "Render" operation.
Request start time: Mon Feb 02 14:30:15 CET 2009
com.adobe.ProcessingException: Problem accessing data from Destination: dest:FP_ICF_DATA_ED1//sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE&fp-cacheinfo=2006-06-26T13%3a10%3a38Z%2406c26758-d4b6-4818-8928-bbed36a10089%240%24de%24v0%2e9; [Error Log file "2009.02.02.143015SAFPCP00RES.pdf" written to /usr/sap/SD1/SYS/global//AdobeDocumentServices/renderErrorLog/errorFiles]
Exception Stack Trace:
com.adobe.ProcessingException: Problem accessing data from Destination: dest:FP_ICF_DATA_ED1//sap/bc/fp/form/layout/ISSR_NW670_RX_PDF.XDP?fp-language=DE&fp-cacheinfo=2006-06-26T13%3a10%3a38Z%2406c26758-d4b6-4818-8928-bbed36a10089%240%24de%24v0%2e9; [Error Log file "2009.02.02.143015SAFPCP00RES.pdf" written to /usr/sap/SD1/SYS/global//AdobeDocumentServices/renderErrorLog/errorFiles]
at com.adobe.ads.operation.Render.execute(Unknown Source)
at com.adobe.ads.operation.ADSOperation.doWork(Unknown Source)
at com.adobe.ads.request.Request.processOperations(Unknown Source)
at com.adobe.ads.request.Request.process(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.processRequest(Unknown Source)
at com.adobe.AdobeDocumentServicesEJB.rpData(Unknown Source)
at com.adobe.AdobeDocumentServicesLocalLocalObjectImpl0_0.rpData(AdobeDocumentServicesLocalLocalObjectImpl0_0.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:60)
at java.lang.reflect.Method.invoke(Method.java:391)
at com.sap.engine.services.webservices.runtime.EJBImplementationContainer.invokeMethod(EJBImplementationContainer.java:126)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:157)
at com.sap.engine.services.webservices.runtime.RuntimeProcessor.process(RuntimeProcessor.java:79)
at com.sap.engine.services.webservices.runtime.servlet.ServletDispatcherImpl.doPost(ServletDispatcherImpl.java:92)
at SoapServlet.doPost(SoapServlet.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(AccessController.java:215)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
End trace, total elapsed time = 121 ms.
Edited by: Sören Reiche on Feb 4, 2009 7:49 AMHi there
Our problem is solved. We had a problem with our ADS user passwords.
Thanks. -
Configure VMServer and Migrate the SAP instances
Hi All,
We have already 5 instance installed on Windows 2008 SP2 Server (4 Processors & 64 GB RAM) and MS SQL Server 2008.
We are planning to configure VMWareand migrate all our instance to migrate to each V Machines
Please give some details, how to migrate all our instance into Virtual servers. I have gone through some of the documents, but i am not clear how to start.
Regards
PonnusamyHi All,
We are planning for Hyper-V based virtualization, which is inbuilt feature of Windows 2008 R2 Server.
Here is my server Configurations and sap instances on that server
HDD u2013 6TB
RAM - 64 GB
OS u2013 Win 2K8 R2
DB u2013 SQL Server 2K8 R2
SAP SRM 7.0
SAP MDM 7.1
SAP NW EP 7.01
SAP ECC IDES 6.04
SAP CE 7.2
SAP PI7.1 EHP1
Here are my doubts
1. When we enable the Hyper-V role and configure VM, Is there any change happens in Network or LAN settings
2. We plan to Homogeneous system copy to move SAP instance to VM
2. will it possible to run sap applications on Host machine and VM parallely.
3. What points I have to consider before starting Configure VM
Regards
Ponnusamy -
Where can i find start/stop scripts for all SAP instances
Hi,
I installed CI, DB and Dialog instance on a standalone S10 machine and i could see start scripts under /sapmnt/RAM/profile
START_DVEBMGS09_hostSAP
START_D24_hostSAP
But i cann't see stop scripts for the above and also i cann't see start and stop scripts for SAP DB instance. Could some one point me where i can find them when everything is installed on a single box.
Thanks,
RamUSAGE: STARTSAP.EXE name=<SID> nr=<SYSNR> SAPDIAHOST=<host>
FURTHER INFORMATION:
- The executable sapstart.exe must be in the same directory
when you start sap instacne, it will check db instance first, if db instance not start , it will automatic start db instance then sap instance.
vice visa :
stopsap is alos can be used. -
List of instance and databases
My sql server contains multiple instances and each instance contains multiple databases.
Now how to list of all the instances and their corresponding databases?
i used select * from sys.servers for instances and sys.databases for number of databases.
But how to list of all the instances and databases using single query?Hi
List all Instances
option 1: Pwershell
Get-Service | Where-Object {$_.Name -like 'MSSQL$*'}
Option 2: query this registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server.....
Option 3: go to regitry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names
* Here you can find other option like OLTP and not just SQL
Option 4: RUN -> services.msc
Find all services named "SQL Server". The instance name is in the brakets
Option 5: Open sql server configuration manager -> SQL Server Services
There are more options if you need :-)
[Personal Site] [Blog] [Facebook] -
How to create db instance and instance in another node?
Hi,
I have installed CRS and created database in node 1(rac1.domain.com).DB instance and ASM instances are running fine in NODE1. how to acceess database from NODE2(rac2.domain.com). CRS installed in NODE2.
Thanks,Hi Mohammed,
Your post says that you have installed the CRS on Node - 2. Now things to do on Node - 2.
1. Make sure that same user is created on node - 2 and user equelance setup is done along with network card setup.
2. Configure the HANG CHECK TIMER on all the nodes
3. Prepare disks for ASM
4. Configure the ASM lib on node - 2 and make sure that you can scan the ASM disks on new node
5. Configure the RAW devices for OCR and Voting disks
6. Install the CRS home on node2 - Which is already done by you
7. Install the RDBMS home on node - 2
8. Install the ASM home on node - 2
9. Configure the Listeners on the node - 2
10. Create the ASM instance
11. Create the database instance on Node - 2 from Enterprise Manager database console
I have mentioned all the steps to add a new node, just ignore the steps which you already performed on new node and follow the steps, let us know if you sill face any errors. -
Multiple Instances and schemas to One
Hi,
Good Morning to all gurus.
Using Oracle Version 11.2.0.2
We have a database With 4 instances and Each Instance will be having 10 to 15 schemas Based on Countries. Here in all schemas we will be having Huge data's (count may be 3 to 5 crores for some 10 tables)
Now am keen to Know If i change the above to a single instance and Single Schema(Common for all countries) What Pros and cons Will be there (Technical).
Any Links or Answers are highly appreciated.
HOPE GURUS Here can help me study and understand the above scenarios.
Regards,
Simma....http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2246908001297
cons:
o harder to manage
o harder to upgrade
o harder to patch
o harder to maintain
o causes your shared pool size to increase 1,000 times (shared sql goes down the tubes)
o takes more space
o queries against the dictionary will be impacted
o latching on the shared pool goes WAY up (latching = locks = serialization device =
slows you down)
pros:
o none that I can think of.
https://forums.oracle.com/thread/1032030
Seperate schemas have advantages with security, privacy, seperation of duties, and change control. Seperate schemas also have the advantage of logical granularity / grouping for easier management, upgrade, decommission, scalability, hardware or software migration.
Yes, you can develop applications faster if you don't have to think about security, scalability etc, but it will come back to haunt you later.
RobertGeier
AND
Separate schemas have the disadvantage of requiring additonal grants and privileges to support the reference of non-owned objects used in stored code and to support FK definitions across tables owned by different users.
Naming standards and system codes can be used to identify and segregate objects defined under one schema.
The use of solid naming standards with a well chosen group of owners (schemas) would likely be a good compromise. The choice really depends on how large the applicaiton is going to be object wise and how integrated the objects are going to be. The more integration the less separate owners is beneficial.
IMHO -- Mark D Powell -- -
Different between Reboot Role Instance and Restart role
Can anybody tell the different between
Reboot Role Instance
http://msdn.microsoft.com/library/azure/gg441298.aspx
and
Restart Role
http://msdn.microsoft.com/library/azure/jj157197.aspx
are they redundant?
Even one is put under virtual machine operations, but virtual machine is also a role instance in a cloud service anyway.When you reboot a role instance, the instance is taken offline, the underlying operating system is restarted for that instance, and the instance is brought back online. Any data that is written to the local disk is persisted across reboots. Any data that is
in-memory is lost.
Ref - http://msdn.microsoft.com/en-us/library/azure/gg441298.aspx
In particular to cloud services, - customizations done on the role instances e.g. manually installed software, deployed files (either through RDP or through web deploy) will be lost and the instance will be brought back to the initial state.
Bhushan | Blog |
LinkedIn | Twitter -
Tools and Script for stopping and starting SAP instances in the landscape
Hi All,
All our SAP system are on Windows 2003 and very few on Windows 2000.
Is there any possiblity for having a script which will stop and start SAP on all the instances in the Landscape from a central system?
Lets say we have some 200 SAP instances and we need to down all the instances for Windows patching.
In this case, we need to manually take remote desktop to stop and start all the instances one by one.
Also, do we have any 3rd party automated tools for this purpose?
Regards,
Siva.Hi Siva,
You can configure ACC for your system landscape.
http://help.sap.com/saphelp_nwmobile71/helpdata/en/83/43cd574af1489aadd4d71b2f47b77d/content.htm
Thanks
Atul -
Central NetWeaver Installation and DB Instance on same host?
HI all,
Would like to ask a question about NetWeaver installation.
If I choose central installation, means Central Service Instance, DB Instance and Central Instance will be on the same host, but can my DB, say SQL Server reside on separate host?
If not, is it correct that I have to choose distributed installation? So if distributed installation, can I install Central Service instance and Central intance on one host, and DB instance and SQL Server on another host?
Thanks,
KelvinHi KL:
You can get this answer directly from the Installation Guides.
You can download the installation guides for NetWeaver under: https://service.sap.com/instguides
Hope this helps!
Regards,
Federico G. Babelis
NetWeaver Certified Consultant
http://www.gazum.com -
What is the exact meaning of Central and Dialogue instance Means? Can you put that in simple terms please?
Thanks.Hi,
Central Instance is the minimum requirement to run a SAP system which consists of all the work processes.
But in some cases, the available work processes may not be sufficient which will increase the wait and response times to end users before the work processes are released. In these kind of cases, a dialog instance will be installed so that the dialog requests can also be routed/shared if logon load balancing is configured.
There are some organizations which will have more requests to print. In this case, a dialog instance is installed and most of the work processes in this are set to spool so that there are ample work processes avaialable for print requests.
Dialog instance will generally be installed to increase work processes (can be dialog, update, background and spool) except enqueue and message server processes.
Hope this helps. Please award points if helpful.
Thanks
Vijay -
Difference between Central Instance and Application server?
Can anybody let me know the exact difference betwwen a Central Instance and An Application server?
I think it can help you to understand the concepts:
http://help.sap.com/saphelp_40b/helpdata/en/08/5741a84ae611d1894f0000e829fbbd/content.htm
Best regards,
Itamar Marioto
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