Similar Questions

• WebLogic and Oracle RAC + DataGuard

  Hello
  
  I'm testing Weblogic 9.2 with Oracle 10g RAC (2 knots) and Oracle DataGuard and trying to find the best possible data source configuration that would deal with load balancing between RAC nodes and failover/switchback between RAC nodes and data pending. The problem I see is that all Oracle instances must be open in order to successfully deploy the data sources on Weblogic. This means that, at the time of the creation/deployment and after every restart WebLogic, all Oracle instances must be upward and running and accept connections, because otherwise the data sources will not be instantiated and therefore not accessible to the consumer application.
  Is it possible to smoothly deploy data sources without having to go through the hassle of ensuring all nodes RAC and DataGuard are open?
  What I expected, it is that the data source would be instantiated but disabled if no connection is available. Having to redeploy the data source once the database is available again is a limitation regarding transparent high availability.
  Thank you.

  Hi, Yes. Configure the pool to have an initial capacity of zero. Then it will be
  deploy and not try to make connections. He'll only try when / if
  He is asked at run time. While the DBMS is not passed, the
  Data source throws an exception just until the DBMS is in place.

• Redo Log in Oracle RAC 11G

  Hello

  I work with oracle RAC 11gr2.0.3.

  We have an expectation to top event 'parallel log file reading', and other types of waiting as 'log sequential read', 'log file sync '...

  When I check the size of redo log = 50 M, while in the old database oracle 10 g 2 (no CARS), the size of redo log = 150 M.

  So, I want to know if I should increase our redo log in our Oracle RAC database, or not?

  Should be again small use connect oracle RAC, oracle RAC without difference?

  Thank you for your help.

  No matter the size, it is recommended to use at least 3 groups of newspapers by thread. This is particularly important if the archive log mode is activated.

  See you soon,.

  Brian

• Link between Oracle database 10g and Oracle database 11g database

  We have a database from Oracle 10 g to which connect us with SID = mod

  The TNS names file is present in the directory Oracle NETWORK\ADMIN on the development computer contains the following two entries among others

  MOD =

  (DESCRIPTION =

  (ADDRESS_LIST =

  (ADDRESS = (PROTOCOL = TCP) (HOST = 10.70.10.23)(PORT = 1521))

  (ADDRESS = (PROTOCOL = TCP) (HOST = 10.70.10.21)(PORT = 1521))

  )

  (CONNECT_DATA =

  (SERVICE_NAME = mod)

  )

  )

  NEWMOD =

  (DESCRIPTION =

  (ADDRESS_LIST =

  (ADDRESS = (PROTOCOL = TCP) (HOST = 10.70.10.7)(PORT = 1521))

  (ADDRESS = (PROTOCOL = TCP) (HOST = 10.70.10.9)(PORT = 1521))

  (LOAD_BALANCE = yes)

  )

  (CONNECT_DATA =

  (SERVER = DEDICATED)

  (SERVICE_NAME = MOD)

  )

  )

  In the SQL client we can log on to the mod and newmod each with its own username and password.

  To create a link of database as follows

  CREATE newmod CONNECT TO DATABASE LINK Public user1 IDENTIFIED BY password1 USING 'newmod ';

  the database link is created without problems.

  However, in trying to retrieve data from tables in the database that uses 10.70.10.7 and 10.70.10.9 using a command like

  Select Column1 table1@newmod;

  We get the following error:

  ORA-12154: TNS: could not resolve the connect identifier specified

  How can access us the tables at the entrance to tns newmod because it resides on a server 11g, while tns mod entry is on a 10g Server? (both use the same service name, but are located on different ip addresses)

  Your help is very appreciated.

  Have you set TNS_ADMIN variable? Check if you have any additional TNSNAMES file. ORA in your ORACLE_HOME files.

  Point A of TN-entry NEWMOD to a host. Load Balancing is not needed.

  Try to create the dblink with the connect descriptor.

  create database DB_TEST link to connect to SCOTT

  identified by "password" ' (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 10.70.10.9)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = MOD)))';

  Kind regards

  Suntrupth

• ORACLE_HOME in Oracle RAC 11g (Windows Server 2008)

  Hello
  
  I've got 2 two nodes in a RAC Oracle 11 g in Windows Server 2008. Oracle software is installed in directory.
  
  I realized that it has not been set ORACLE_HOME path. In the properties-> advanced-> Environment Variables, I see that ORACLE_HOME is empty.
  
  -Which way would be the ORACLE_HOME: C:\app\bd\product\11.2.0\dbhome_1
  -You have set up the same in the two nodes?
  
  Thank you

  I realized that it has not been set ORACLE_HOME path. In system-> Advanced-> Environment Variables properties, I see that ORACLE_HOME is empty.

  its normal behavior

  -Which way would be the ORACLE_HOME: C:\app\bd\product\11.2.0\dbhome_1

  If you have installed this location, Yes

  -You have set up the same in the two nodes?

  in fact, you don't have HAVE to, its not need at all

• Oracle RAC 11g R2. Node pinned or this marking?

  Hi all, I am working with Oracle Clusterware & RAC 11 g R2.
  As this is my first time, I really don't understand what is the meanning of pinning or unpin a node.
  Can someone help me please?
  
  Thanks in advance!

  11.2 RAC deployment guide

  Pin a node means the association of a name with a number of node node is fixed. If a node is not pinned, its node number can change if the lease expires while it's down. The lease of a pinned node never expires.

  Given that your installation is a clean installation (no previous installation made), you don't need to pin the nodes, it would be by oracle clusterware.

  HTH
  Aman...

• need to change password for root and oracle Linux

  Dear all,
  
  We have installed Oracle RAC server configured a year back. now, due to security reason has to change the root and oracle user password.
  so before changing the password, we want to know is there any impact on live server due to change password for the user root and oracle RAC.
  
  as we so oracle user equivalence if we change the password, it will work very well.
  
  Thank you
  Shir khan

  SHERKHAN wrote:
  Dear all,

  We have installed Oracle RAC server configured a year back. now, due to security reason has to change the root and oracle user password.
  so before changing the password, we want to know is there any impact on live server due to change password for the user root and oracle RAC.

  as we so oracle user equivalence if we change the password, it will work very well.

  No, there is no impact of the change to the password of user oracle/root on the equivalence of the user and RAC.

  Also check similar posts in the past:

  User OS password Oracle RAC environment change

  Concerning
  Rajesh

  Published by: Rajesh on August 25, 2010 11:26

• Oracle RAC 10 g, is it possible different version of the OS

  Hi all
  
  We have two-node Oracle RAC 10 g on Red hat 2 4. Now, the plan is to add a new node to the existing Oracle RAC. The new node is Redhat 5.4.
  is it possible to add this node to the existing Oracle RAC.
  
  The only difference is the version of the OS, existing installation is Redhat 4 and new node with Redhat 5.
  
  Thank you and best regards,
  Shir khan

  Hello

  Documentation Oracle says the following:

  Oracle Clusterware and Oracle RAC do not support heterogeneous platforms in the same cluster. For example, you cannot have a node in the cluster that is running Oracle Linux and another node in the cluster, even under UNIX Solaris. All nodes must be running the same operating system; in other words, they must be compatible to the binary format. Oracle RAC does not support machines with chips different architectures in the same cluster. However, you can have machines of sizes and at different speeds in the same cluster.

  And Metalink article

  Comparison between the characteristics: RAC, Dataguard, streams, advanced a replication or base [ID 370850.1]

  We can see some additional details:

  Real Application Clusters (RAC)-

  Same OS version on all nodes whose group of patches
  Same version on all nodes whose group of patches Oracle version

  Good luck!

  --------------------------
  http://DBA-star.blogspot.com/

• Oracle RAC one node

  Hi all, I have a question I hope someone can help me.
  We must apply Oracle RAC a node, but when I install the software of oracle 11.2.0.3 database I see two options: Oracle RAC one node and Oracle RAC, so I understand that I must select a node Oracle RAC but and also I know I can convert the RAC one node to RAC my database. But my question is what that different I have to choose RAC node or CARS in the form of installation for example other executable, etc, because I want to be sure that I won't have problems in the future. Thank you

  A knot of CARS is something different with a different license than CARS. Install to that you have a license.

• Oracle RAC without Sun Cluster?

  Hello
  
  We are about to design an architecture based on Oracle 10 g with RAC, ASM (and also TimesTen) 2.
  
  My understanding of the documentation is that we can just buy servers, installation and configuration of Oracle with the RAC is, install Oracle Clusterware and ASM for storage shared and which is quite...
  
  In other words, there is no need to buy Sun Cluster 3 to create a cluster.
  It is also unnecessary to buy Veritas Volume Manager to the Manager of the drive bays, ASM will do.
  
  Can someone confirm?
  
  I ask the question because I heard that some people had CARS with Sun Cluster and I do not see him point with an additional cluster with RAC system. And the same goes for ASM (why should I need another volume Manager?). In the end, it's a lot of money for nothing...
  
  Thanks in advance.

  From 10 g, Oracle no longer supports any clustering software, but their own Clusterware for RAC.

  "Before the database Oracle 10 g clusterware third was necessary on most operating systems to use CARS. Starting with the Oracle 10 g database, that oracle Clusterware is necessary whenever the CAR is going to be used. Oracle still supports the use of the third-party clusterware in CCR environments"

  http://hptv04.files.WordPress.com/2008/07/Oracle-Clusterware-10G.PDF

• Problem with Oracle fail safe 4.1.1 on W2k8 R2 Cluster Failover and Oracle 11.2.0.4 database

  Hi all

  I'm doing some tests on a Windows 2008 (64-bit) R2 two-node failover Cluster.

  I installed and configured successfully bone and the Failover Cluster feature.

  So I followed Oracle Doc-ID 1916391.1 to perform the installation and configuration of Oracle 11.2.0.4 database and Oracle Fail Safe 4.1.1

  After a successful (via Fail Safe Manager) validation of cluster and group, now I'm trying to validate the stand-alone database, but I'm stuck with this error (output in verbose mode of PowerShell):

  PS C:\Users\demo > Test-OracleClusterAvailableDatabase TESTDB - SysPwd (Read-Host-AsSecureString-Prompt "SYS Password ')-verbose

  SYS password: *.

  DETAILES: FS-10915: NODE1: from verification of autonomous resources TESTDB

  DETAILES: FS-10371: NODE1: run the initialization processing

  DETAILES: FS-10371: NODE2: run the initialization processing

  DETAILES: FS-10372: NODE1: resource owner information collection

  DETAILES: FS-10372: NODE2: resource owner information collection

  DETAILES: FS-10373: NODE1: determine the owner of the TESTDB resource node

  DETAILES: FS-10374: NODE1: collection of cluster information required to perform the specified operation

  DETAILES: FS-10374: NODE2: collection of cluster information required to perform the specified operation

  DETAILES: FS-10375: NODE1: analysis of the cluster information required to perform the specified operation

  DETAILES: FS-10378: NODE1: preparation for the configuration of resource TESTDB

  TH: FS-10349: database TESTDB instance is not alive. You want to stop and restart the database instance?

  Confirmation

  Operation does?

  Running dell' operation sulla "Test-OracleClusterAvailableDatabase' likelihood 'TESTDB '.

  [S] Sì Sì [T] a [N] no [U] tutti a tutti [O] Sospendi [?] Guida (he valore predefinito e "S"):

  DETAILES: FS-10350: from the TESTDB database

  Test-OracleClusterAvailableDatabase: OCIEnvNlsCreate failed

  
  

  Riga: 1 car: 1

  + Test-OracleClusterAvailableDatabase - SysPwd TESTDB (Read-Host - AsSecureString - P...)

  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo: DeviceError: (TESTDB:ResourceDatabase) [Test-OracleClusterAvailableDatabase], PowerShell

  Exception

  + FullyQualifiedErrorId: Process, Oracle.FailSafe.PowerShell.TestOracleClusterAvailableDatabase

  Test-OracleClusterAvailableDatabase: FS-10999: an internal programming error

  Riga: 1 car: 1

  + Test-OracleClusterAvailableDatabase - SysPwd TESTDB (Read-Host - AsSecureString - P...)

  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo: DeviceError: (TESTDB:ResourceDatabase) [Test-OracleClusterAvailableDatabase], PowerShell

  Exception

  + FullyQualifiedErrorId: Process, Oracle.FailSafe.PowerShell.TestOracleClusterAvailableDatabase

  Test-OracleClusterAvailableDatabase: FS-10160: impossible to verify the Oracle of standalone TESTDB database

  Riga: 1 car: 1

  + Test-OracleClusterAvailableDatabase - SysPwd TESTDB (Read-Host - AsSecureString - P...)

  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo: DeviceError: (TESTDB:ResourceDatabase) [Test-OracleClusterAvailableDatabase], PowerShell

  Exception

  + FullyQualifiedErrorId: Process, Oracle.FailSafe.PowerShell.TestOracleClusterAvailableDatabase

  Test-OracleClusterAvailableDatabase: FS-10818: provider of resources of the database Oracle failed in preparing for

  treatment for TESTDB resource configuration

  Riga: 1 car: 1

  + Test-OracleClusterAvailableDatabase - SysPwd TESTDB (Read-Host - AsSecureString - P...)

  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo: DeviceError: (TESTDB:ResourceDatabase) [Test-OracleClusterAvailableDatabase], PowerShell

  Exception

  + FullyQualifiedErrorId: Process, Oracle.FailSafe.PowerShell.TestOracleClusterAvailableDatabase

  Test-OracleClusterAvailableDatabase: FS-10890: Oracle Services for MSCS failed during the verifyStandalone operation

  Riga: 1 car: 1

  + Test-OracleClusterAvailableDatabase - SysPwd TESTDB (Read-Host - AsSecureString - P...)

  + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  + CategoryInfo: DeviceError: (TESTDB:ResourceDatabase) [Test-OracleClusterAvailableDatabase], PowerShell

  Exception

  + FullyQualifiedErrorId: Process, Oracle.FailSafe.PowerShell.TestOracleClusterAvailableDatabase

  Attached is the log of the OFS Cluster Dump (no error in my opinion).

  I surfed around but I can't find anything to solve the problem.

  I think something about the language of the (Italian) OS and Oracle NLS settings (AMERICAN. AMERICA), but obviolsly I'm not sure about this.

  Thanks in advance for any suggestion,

  Alessandro

  Message modificato da 1d457339-524e-4aa5-94aa-fd7d1ae98732 updated: attached is also output trace of the fss.

  Hello Alessandro.

  Solution to the issue is:

  Patch 20744940: 4.1.1.1: ORACLE FAIL SAFE VERSION 4.1.1 PATCH SET 1

• RDM and Oracle Cluster

  I have a client who wants to create two new Virtual Machine with RedHat Enterprise Linux and Oracle 10 x (I don't know).

  He wants to create an active/passive cluster between the two VirtualMachine Oracle, but want to use a disc RDM (due to performance of I/o expansion).

  Please avoid discussing the increase assumed of I/O, I have done some tests and I don't think that there is a difference so to justify a RDM... but so now!

  If I remember correctly it is not possible to attach the same ROW (both in physical or virtual) to more than one computer at the same time virtual, so how can I create an active/passive cluster and use a RDM?

  Thank you

  Riccardo Riva

  VCP, RHCE, FCNSA

  If you have found this or other useful information, please consider awarding points to 'Correct' or 'useful '. Thank you!

  If I change the preferences of the VM I can add a DRIVE or a SCSI DEVICE, but not a SCSI controller.

  The trick is very simple: use a new SCSI ID (for your disc RDM) as 1, X

  This will create a new controller.

  WARNING: adding a new controller can change nNIC enumeration, so remember that you network settings remain the same.

  André

• How Oracle Clusterware Oracle RAC and 3rd-party Clustering with them

  I have some questions on how Oracle, Oracle RAC and 3^rd party clustering CLusterware fit between them.

  Q1. My understanding is that the Infrastructure Grid Oracle Clusterware is Oracle's Clustering solution that allows applications to cluster? that is, it is a general clusterware solution to compete with those already on the market. Is this correct?

  Q2. So why CARS is necessary for the Oracle cluster databases? An Oracle database is not just considered one application like any other? So why can not just use you GI / Clusterware to gather what you would do for any other application? Why so you need RAC to the Clusterware Summit?

  Q3. Is it is possible to combine an Oracle database using 3^rd party of clustering and not use Oracle Clusterware and CARS at all that is can you say cluster, an Oracle database using say Sun Clusters, Clustering AIX or Linux native same clustering?

  Q4. If the RAC is purely for Oracle Cluster databases - what is with the title "Real Application Clusters"? What's real on this subject?, what to ask?

  Q5. I also read that RAC can use 3^rd party of clustering. However if you decide that this is the case, then you need to install Oracle Clusterware when even (I think for interconnection must be created to allow the merger with Cache between Instances of node?).

  Is this the case?  If yes why never bore you with 3^rd party clusters? -Since you will have to install Oracle Clustering anyway - and I probably have to license (all I can think about is the scenario that you already have a cluster of 3^rd party in place and you decide that you need to use the same material for a database cluster)?

  All wisdom greatly appreciated,

  Jim

  Yes, with 10g, you had to use the CRS, and with 11g, to use the GI.  For 9i RAC, you would use Verits Cluster and Sun Cluster or anything else.

  11g RAC to GI.  As above, you can use clusterware extra if needed.  I gave the example above where to a 10g RAC we used the CRS to the cluster database/listener/vip and allowing groups of volume and filesystem in HACMP cluster.  File systems were not shared, but could switch to another node failure node, who has been treated by HACMP.  The volume of the groups containing the raw devices were shared volume groups.  For 11g, I never used extra clusterware on top of CRS and have always used ASM which is part of the GI.

  The application provider only certified database to run on 10g on AIX with raw devices.  What is strange about that?  It would be unusual that you probably expect to use ASM instead of raw devices, but it is what it is.

  See the following Note of Oracle for more information: using Oracle Clusterware with vendor Clusterware FAQ (Doc ID 332257.1)

  It is perhaps easier to explain if you can explain what problem you are trying to solve?

• Oracle RAC and replacement of equipment

  Hello world

  next year our Oracle RAC (hardware) servers will be is more supported. We have a 2 node RAC (SE) running on Linux 5. For you, what is the strategy easier (and safer) to replace the equipment:

  • Reinstall complete with database exports / imports.
  • Adding new nodes to the cluster with new servers and delete 'old' (but it seems that the same version of operating system is required in accordance with the documentation).
  • Clone of the cluster according to the Oracle documentation on news servers.

  Thank you for all your ideas. I googled a bit, but I've not found much info.

  Carlos.

  • Adding new nodes to the cluster with new servers and delete 'old' (but it seems that the same version of operating system is required in accordance with the documentation).

  It's what I strive for. If your time with new nodes in the cluster is short (less than 24 hours), and you stay on the same distribution (i.e. OL5 to OL7), then several times, this isn't a problem. If you still have concerns and do not feel comfortable with this recommendation, then I'll recommend another avenue. I often used it when I was doing something similar for the production system was too critical to take no risk.

  1. Up new servers in a cluster. You can even start with the version of grid Infrastructure more later/more big who can save a future update maybe you.
     1. It will take a new OCR and voting disk new configuration.
  2. Attach the storage shared on the new cluster. For a short period of time, you will have storage mounted to both old and new.
  3. Install the RDBMS software on the new cluster. Wear on all the config files you might need more... tnsnames.ora, sqlnet.ora, etc..
  4. When you are ready to drop the database on the old cluster, cutting on the new cluster.
  5. Use "srvctl database add" to add the database to the new cluster.
  6. Use 'srvctl add instance' to add the instances to the new cluster.
  7. (Optional but normally a good idea), use 'srvctl add service' to add services to the new cluster.
     1. Steps 5 and 6 above usually use the same name of db, same instance names, same service name.
  8. You now have the database running on the new hardware. Stop the old servers

  The only other sticking point would be handling the SCAN and traditional VIP. When I made this drive, I usually my network guy change the SCAN VIP and traditional dignitaries to be alias in DNS that point to the new VIP.

  If you do your homework and have everything ready to go, the downtime can be less than 15 minutes for this approach.

  See you soon,.
  Brian

• Tuxedo of Oracle and Oracle Tuxedo message queue on a virtual machine.

  Hi friends.

  How is it going?

  A small question.

  So let's go live using Oracle Tuxedo 12.1.1.0 with binding distinguished Bulletin Board and Oracle Tuxedo Message Queue 12.1.1.0 on a Virtual Machine (VMWARE) running Oracle Linux 6.2. However, we want to know if there are recommendations or mishaps in which we face before running Oracle Tuxedo on a virtual machine?

  I mean, I wonder if I have to worry about kernel parameters, settings of virtual machine or any other thing that could ruin everything.

  Another question.

  Oracle also provides certification of VMS where Tuxedo Oracle would go on top of the?

  Todd little-Oracle

  Maurice G-Oracle

  Hi Bruno.

  I'm not sure what you mean with single Liaison Bulletin Board.  I guess you mean a cluster or the MP configuration?  And is it really a clustered or just a single machine of the MP configuration?

  About the configuration, you use Tuxedo services as well or just Tuxedo Message Queue?  The biggest problem with the configuration of the BONE is the IPC resources.  If you do a-c tmloadcf on your UBBCONFIG file, it will help you to determine the required minimum IPC resources.  In general, I suggest configuration much more resources than the minimum to allow for the changes to come and for some of the parameters for heavier loads.  In particular IPC message queue settings are strongly dependent on the load.  So make sure that the maximum message size and the size of the queue are big enough for your expected workload.  You can monitor the slot load using the ipcs command.

  We don't certify virtual machine environment, but support also a long time the VM vendor to ensure compatibility, obviously VMware and Oracle VM who both do.

  Kind regards

  Todd little

  Chief Architect of Oracle Tuxedo