Rac Configuration?

Hi,
Can i create more than one instances for single database in localhost?if it possible provide sufficient document.
Thanks,

What is your OS version ?
Using VMware , you can create more than one instances for single database in localhost.
http://www.oracle.com/technology/obe/obe10gdb_vmware/install/racinstallwin2k/racinstallwin2k.htm
http://onlineappsdba.com/index.php/2007/07/09/step-by-step-build-rac-part-1-install-vmware-and-linux/

Similar Messages

Installation audit vault agent with RAC configuration

Hi at all,
I have a question about the installation of the agent on the RAC configuration. Where must I install the Audit vault agent, on all RAC nodes or is there a properly configuration?
Thanks
Vincenzo

By default when you install the agent on any single node the installation recognizes that it is a cluster and presents you with a list of available nodes from which to select.
With a RAC cluster you have one database and multiple instances. All instances will write to one, and only one AUD$ and FGA_LOG$ table so if you are using database auditing one node will suffice. Which node that is though depends on knowing which node is up at any one time so you could potentially choose a node that is dropped from the cluster or is down for patching and maintenance while the cluster is still running. With respect to REDO collection each node has its own redo thread so you definitely need to be collecting from every node.
Audit Vault has not been out long enough that I can tell you from experience what might be defined as "best practice" and often what we really need to study is "worst practice" to know what not to do. But in the case of RAC my instinct would be to first determine the collection type(s) and then decide. Erring on the side of collecting from all nodes makes a lot of sense.

Can we have multiple grid installations on a RAC configuration

Hi,
I just want to check whether we can have multiple grid installations running in parallel on same configuration. For eg: A 3 node RAC having 11g and 12c RAC configurations running in parallel.
I understand that we can have multiple oracle database installations under a grid , but not sure of multiple grid installations.
Can someone guide me here ?
--Amith

Hi,
You can not have multiple GI running on same server.
Please review the following note:
11gR2 Clusterware and Grid Home - What You Need to Know (Doc ID 1053147.1)
Specifically:
11gR2 Clusterware Key Facts
"Only one set of clusterware daemons can be running per node."
Also refer the following RAC faq note and you may get answer for most of question
RAC: Frequently Asked Questions (Doc ID 220970.1)

How to disable Oracle RAC configuration.

Hi,
I have a system running on a RAC configuration (two machines and a shared SAN) I have been looking extensively for any documentation on how to dismantle (safely, i.e. best practise) the rac configuration.
I don't want to loose the database and want to keep one of the instance running and servicing the database, but I want to remove all RAC/Cluster references and remove the other machine.
Is there any note/ documentation anywhere on how to do that so that the database/instance will be running afterwards with no knowledge on having been in a RAC config before or has someone done that ?
Thor Hjalmar.

Want to know how can I convert a rac database to a non-rac.

Fresh R12 with RAC configuration.

Hi all,
I want to start up a R12.1.1 Installation with RAC configuration on Oracle Enterprise Linux 5.6 servers.
Kindly expecting the steps and notes i have to follow.
I have experience in installation EBIS, but not with RAC, more over this is a single node installation.
Thanks & Regards
Hamid

Hi;
Please see:
oracle apps upgrade plan
Upgrade the 11.5.10.2 Instance with 10gRAC setup
Regard
Helios

Private interconnect oracle 10g RAC configuration

Can you please answer below questions?
Why does a private interconnect need a switch, and why is straight through cables not supported.

Hi,
Why do you need a switch between the nodes".When network plugs are pulled out from one node on a two node cluster, a split brain scenerio occurs. (just it's enough)
If you are using a crossover cable and you shutdown node (A) you will loose the network (private) link from node (B) (this happens in some servers.), Oracle RAC will not work with private network link down, both nodes will down and will not start until you get link on network private. (Goodbye high availability)
You will be very unhappy with the error ORA-29740. Prelude to suggest this note: Troubleshooting ORA-29740 in a RAC Environment [ID 219361.1]
There is no "why" Oracle RAC does not support crossover cable because RAC depends of SWITCH (it's a Hardware Requirements) and any problems in your environment Oracle will force you to implement a supported solution.
You will have implemented a poor environment, if you not use a GB switch for private network.
Oracle Words:
*Physical Layout of the Private Interconnect*
The basic requirements are described in the Installation Guide for each platform. Additional information about certification can be found on Metalink Certify.
The interconnect as identified by both subnet number and interface name must be configured on all clustered nodes.
*A switch between the clustered nodes is an absolute requirement.*
*Cluster Interconnect in Oracle 10g and 11g [ID 787420.1]*
Regards,
Levi Pereira

Unable to make SSH to another node in AIX for Oracle RAC Configuration

Hi,
After creating RSA Keys on both node when I try to scp authorized_keys file from one node to another, it give me the error of Connection lost and then connection closed by 'Machine Address'. SSH services are running on both node and I'm able to do ssh from root user but this happened with Oracle OS user account. This seems that sencond machine refuse to make connection. Kindly help me why is this happening.
I'm doing this on AIX 5.3. Your help will highly be appreciated.
Regards,
Abbasi

Schavali, you are right this question is acutally has nothing to do with Oracle but the thing is that this issue arises during the configuration of RAC and we are unable to find the reason yet. I think there is problem with key genration however, I'll try to do this. by configuring sshd_config file and then will share the result.
Regards,
Abbasi

ODBC RAC configuration question

Hello, Im looking into doing some ODBC load balancing testing on Oracle RAC, but I thought I would ask to see if anyone knew of any potential problems before I get too involved in the setup.
Is load balancing configured more on the ODBC side? or on the RAC listener side?
Thanks,
J

Hi,
I think you don't need a Oracle RAC for this purpose. A hardware clustering might be sufficient for your purpose.
You will need an expert(expert on the OS, network, hardware and Oracle) advise but here are some inputs based on my experience on 8i in similar purpose:
-2 or more nodes interconnected to each other and both connected to a disk array
-a OS clustering software
-OS clustering is configured for a failover
-oracle is installed on both the nodes
-database is installed on disk array
-oracle service is configured for failover on the cluster
-oracle is started for automatic startup on one node
-startup is not automatic on node 2
-incase of failure, oracle instance is started on the second node by the clustering software.
HTH
Regards,
Badri.

Active passive RAC configuration

hi,
how can I change the active-active RAC database to active-passive RAC database?
1) Is it enough to change active_instance_count=1?
2) Is there any change required in client side tnsnames.ora file?
I want to install two databases, db1 is active in node1 and passive in node2.
And db2 is active in node2 and passive in node1.
3) For configuration of this, which method is best?
current client side tnsnames.ora file as follows:
DBRAC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = gcappdev-vip)(PORT = 1523))
(ADDRESS = (PROTOCOL = TCP)(HOST = gcwebdev-vip)(PORT = 1523))
(LOAD_BALANCE = yes)
(FAILOVER=ON)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = DBRAC)
(FAILOVER_MODE = (TYPE=SELECT)(METHOD=BASIC))
)

When you mean passive.. do you want the database to be down or not usable?
If you are on 10g.. then the best method to do this is to use Services. Have services enabled on both instances. however it will be preferred on one instance /node and available on the other.
With this, when instance one where to crash, the service will failover to instance 2 and will be immediately available.

Oracle 10g ASM and RAC configuration

Hi all,
I want to ask to everybody something about Oracle 10g RAC and ASm configuration. We plan to migrate to Oracle 10g from 9i, and we will begin configuring oracle but we have to decide which configuration are the best.
Our materials are bellow:
Hardware: RP 3440 (HP)
OS : HPUX 11i Ver 1
Storage: EVA 4000 (eva disk group)
The problem is:
Our supplier recommand us to use HP serviguard + HP serviceguard extension for RAC+ RAc and Raw device as configuration.
But we want to use Oracekl Clusterware + RAC + ASM
My question is if anybody know what is the best configuration, we want to use ASm.
Can HP serviguard use ASM.
Some documentations or link explain oracle RAC and ASM configuration will be appreciate.
Thanks for your help.
Regards.
raitsarevo

Hi,
I want to use RAC for clustering. My shared disk is a NetApp Filer FS250 that can only be mounted throught NFS. RAW devices have to be excluded, alsi OCFS i think works similar to raw devices and need to see phisical disk to create partition. ASM instead can work on an NFS mount?
Ste
Visit http://www.stefanocislaghi.it/

Suggestions to add a 10gr2 RAC to a 9iR2 RAC configuration.

Hello,
I want to add a new 10gR2 instance (with clusterware and ASM) to a working production RAC 92 installation (2 nodes on RedHat 3).
The old RAC is configured with raw devices.
For the ASM we plan to use a new configured LUN.
Can you point me to a document with the required steps?
Obviously we would not want to stop the running instances or to reduce the downtime at a minimum.
Thanks.
K

Please be aware that the document posted http://www.oracle.com/technology/pub/notes/technote_singh_crs.html
has some extra steps
Basically you need to stop the gsd from 9i environment before starting the 10g installer. This should detect the existing 9i installation. The installer will use the srvm of 9i and upgrade it to 10g OCR as part of the install. It is to be noted that only the 9i srvm is upgraded to the 10g OCR. The Oracm voting disk will continue to use its voting disk while 10g will use different voting disk.
This way we do not have to add the information again
Thanks,
Anil Nair

RAC configuration shows error !

Dear Friends,
I try to configure RAC in oracle 10g using Vmware , where host machine is RHEL 5.0 and the guest machine is CentOS . I have to follow the following web pages :
"http://www.oracle-base.com/articles/10g/OracleDB10gR2RACInstallationOnCentos4UsingVMware.php"
I have to try the several times but each time I get error during runing the "VIPCA" script in the Second Node (RAC2) . It shows error :
"CRS-215: could not start resource 'ora.rac1.ons' . Check the log file "u01/crs/oracle/product/10.2.0/crs/log/rac1/ora.rac1.ons.log" for more details ."
The contents of the "u01/crs/oracle/product/10.2.0/crs/log/rac1/ora.rac1.ons.log" is :
tail -100f u01/crs/oracle/product/10.2.0/crs/log/rac1/ora.rac1.ons.log :
Oracle Database 10g CRS Release 10.2.0.1.0 Production Copyright 1996, 2005 Oracl e. All rights reserved.
2009-04-22 17:52:32.466: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: Failed to get IP for localhost (2)
Failed to get IP for localhost (2)
Failed to get IP for localhost (2)
onsctl: ons failed to start
2009-04-22 17:52:32.467: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: env ORACLE_CONFIG_HOME=/u01/crs/oracle/product/10.2.0/crs
2009-04-22 17:52:32.467: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: cmd = /u01/crs/oracle/product/10.2.0/crs/bin/racgeut -e USRORA _DEBUG=0 540 /u01/crs/oracle/product/10.2.0/crs/bin/onsctl start
2009-04-22 17:52:32.467: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: rc = 1, time = 1.240s
2009-04-22 17:52:32.691: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: Failed to get IP for localhost (2)
ons is not running ...
2009-04-22 17:52:32.704: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: env ORACLE_CONFIG_HOME=/u01/crs/oracle/product/10.2.0/crs
2009-04-22 17:52:32.704: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: cmd = /u01/crs/oracle/product/10.2.0/crs/bin/racgeut -e USRORA _DEBUG=0 540 /u01/crs/oracle/product/10.2.0/crs/bin/onsctl ping
2009-04-22 17:52:32.704: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: clsrcexecut: rc = 1, time = 0.230s
2009-04-22 17:52:32.704: [    RACG][3086945024] [13199][3086945024][ora.rac1.ons ]: end for resource = ora.rac1.ons, action = start, status = 1, time = 1.510s
2009-04-22 17:52:33.140: [    RACG][3086945024] [13249][3086945024][ora.rac1.ons ]: onsctl: shutting down ons daemon ...
Failed to get IP for localhost (2)
onsctl: shutdown of ons failed!
2009-04-22 17:52:33.141: [    RACG][3086945024] [13249][3086945024][ora.rac1.ons ]: clsrcexecut: env ORACLE_CONFIG_HOME=/u01/crs/oracle/product/10.2.0/crs
2009-04-22 17:52:33.141: [    RACG][3086945024] [13249][3086945024][ora.rac1.ons ]: clsrcexecut: cmd = /u01/crs/oracle/product/10.2.0/crs/bin/racgeut -e USRORA _DEBUG=0 540 /u01/crs/oracle/product/10.2.0/crs/bin/onsctl stop
2009-04-22 17:52:33.141: [    RACG][3086945024] [13249][3086945024][ora.rac1.ons ]: clsrcexecut: rc = 2, time = 0.120s
Would anybody plz tell me how can I resolve this problem ?

Failed to get IP for localhost (2)
onsctl: ons failed to startIs your hosts file configured properly as indicated?

Inva valid vip in RAC configuration

I am trying to install 10G RAC on OEL,after specifying cluster configuration nodes i am getting below error.
The Following node names are invalid as they do not resolve valid ip address.
here is my /etc/hosts entires.
[oracle@racnode1 ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
##=======================================
# Pulic Network
##=======================================
10.172.20.190 racnode1.soft1.com racnode1
10.172.20.191 racnode2.soft1.com racnode2
10.172.20.192 racnode3.soft1.com racnode3
10.172.20.193 racnode4.soft1.com racnode4
##=======================================
# VIPs
##=======================================
10.172.20.290 racnode1-vip.soft1.com racnode1-vip
10.172.20.291 racnode2-vip.soft1.com racnode2-vip
10.172.20.292 racnode3-vip.soft1.com racnode3-vip
10.172.20.293 racnode4-vip.soft1.com racnode4-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
10.10.10.30 racnode1-priv.soft1.com racnode1-priv
10.10.10.31 racnode2-priv.soft1.com racnode2-priv
10.10.10.32 racnode3-priv.soft1.com racnode3-priv
10.10.10.34 racnode4-priv.soft1.com racnode4-priv
######DNS For SCAN LISTENER##############
10.172.20.294 scan.soft1.com scan
[oracle@racnode1 ~]$

Thanks, i removed scan IP from hosts entries,however now after specifying voating disk location(ocfs), i am getting below error.
error thrown when the IP address of a host can't be determined
here is modified entries.
[root@racnode1 crs]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 ; localhost.localdomain ; localhost
##=======================================
# Pulic Network
##=======================================
10.172.20.190 ; racnode1.soft1.com ; racnode1
10.172.20.191 ; racnode2.soft1.com ; racnode2
10.172.20.192 ; racnode3.soft1.com ; racnode3
10.172.20.193 ; racnode4.soft1.com ; racnode4
##=======================================
# VIPs
##=======================================
10.172.20.201 ; racnode1-vip.soft1.com ; racnode1-vip
10.172.20.202 ; racnode2-vip.soft1.com ; racnode2-vip
10.172.20.203 ; racnode3-vip.soft1.com ; racnode3-vip
10.172.20.204 ; racnode4-vip.soft1.com ; racnode4-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
10.10.10.30 ; racnode1-priv.soft1.com ; racnode1-priv
10.10.10.31 ; racnode2-priv.soft1.com ; racnode2-priv
10.10.10.32 ; racnode3-priv.soft1.com ; racnode3-priv
10.10.10.34 ; racnode4-priv.soft1.com ; racnode4-priv
[root@racnode1 crs]#
Node2:
====
[oracle@racnode2 .ssh]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 ; localhost.localdomain ; localhost
##=======================================
# Pulic Network
##=======================================
10.172.20.190 ; racnode1.soft1.com ; racnode1
10.172.20.191 ; racnode2.soft1.com ; racnode2
10.172.20.192 ; racnode3.soft1.com ; racnode3
10.172.20.193 ; racnode4.soft1.com ; racnode4
##=======================================
# VIPs
##=======================================
10.172.20.201 ; racnode1-vip.soft1.com ; racnode1-vip
10.172.20.202 ; racnode2-vip.soft1.com ; racnode2-vip
10.172.20.203 ; racnode3-vip.soft1.com ; racnode3-vip
10.172.20.204 ; racnode4-vip.soft1.com ; racnode4-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
10.10.10.30 ; racnode1-priv.soft1.com ; racnode1-priv
10.10.10.31 ; racnode2-priv.soft1.com ; racnode2-priv
10.10.10.32 ; racnode3-priv.soft1.com ; racnode3-priv
10.10.10.34 ; racnode4-priv.soft1.com ; racnode4-priv
[oracle@racnode2 .ssh]$
Node3:
=====
[oracle@racnode3 clusterware]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 ; localhost.localdomain ; localhost
##=======================================
# Pulic Network
##=======================================
10.172.20.190 ; racnode1.soft1.com ; racnode1
10.172.20.191 ; racnode2.soft1.com ; racnode2
10.172.20.192 ; racnode3.soft1.com ; racnode3
10.172.20.193 ; racnode4.soft1.com ; racnode4
##=======================================
# VIPs
##=======================================
10.172.20.201 ; racnode1-vip.soft1.com ; racnode1-vip
10.172.20.202 ; racnode2-vip.soft1.com ; racnode2-vip
10.172.20.203 ; racnode3-vip.soft1.com ; racnode3-vip
10.172.20.204 ; racnode4-vip.soft1.com ; racnode4-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
10.10.10.30 ; racnode1-priv.soft1.com ; racnode1-priv
10.10.10.31 ; racnode2-priv.soft1.com ; racnode2-priv
10.10.10.32 ; racnode3-priv.soft1.com ; racnode3-priv
10.10.10.34 ; racnode4-priv.soft1.com ; racnode4-priv
[oracle@racnode3 clusterware]$
Node4:
======
[oracle@racnode4 ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
##=======================================
# Pulic Network
##=======================================
10.172.20.190 racnode1.soft1.com racnode1
10.172.20.191 racnode2.soft1.com racnode2
10.172.20.192 racnode3.soft1.com racnode3
10.172.20.193 racnode4.soft1.com racnode4
##=======================================
# VIPs
##=======================================
10.172.20.201 racnode1-vip.soft1.com ; racnode1-vip
10.172.20.202 racnode2-vip.soft1.com ; racnode2-vip
10.172.20.203 racnode3-vip.soft1.com ; racnode3-vip
10.172.20.204 racnode4-vip.soft1.com ; racnode4-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
10.10.10.30 racnode1-priv.soft1.com racnode1-priv
10.10.10.31 racnode2-priv.soft1.com racnode2-priv
10.10.10.32 racnode3-priv.soft1.com racnode3-priv
10.10.10.34 racnode4-priv.soft1.com racnode4-priv
[oracle@racnode4 ~]$

9i RAC configured with HP ServiceGuard

Has anyone out there either successfully or unsuccessfully configured a 2+ node 9i RAC system that runs on a HP-UX box which is set-up with ServiceGuard? I read a few articles about how it works 'in theory' but never actually talked to someone who has really done successfully or tried it and failed.
I'll be grateful to anyone who can share their experiences.
GT

Why do you want to use the HP-serviceguard even when you are using RAC on 10g Rel 2.
Oracle itself provide facility of TAF and now in 10g the concept of Vip.
all this functionality will be available by using TAF.
Kuljeet

Oracle Database 11gR2 RAC - Configure ASM Libraries on VM

Folks,
Hello. I am installing Oracle 11gR2 RAC system using 2 Virtual Machines (rac1 and rac2 - Oracle Linux 5.6) on the top of VMPlayer.
I am configuring ASM libraries on rac1 using the command:
[root@rac1 dev]# oracleasm configure -i
But this message comes up:"Command not found."
I cannot find the directory where "oracleasm" is located. Can any folk help to solve the issue ?
Thanks in advance.

I would suggest you to take a look at these guides
http://www.oracle-base.com/articles/11g/Articles11g.php#db11g_release_2_installations
Many of them are installed in virtual machines.

Configure Oracle DB Adapter in Oracle RAC configuration

Oracle RAC uses Service name rather than SID and Oracle adpater only accepts a URL string in sid format. How can a connection be defined for a RAC environment?

Thank you. The solution for configuring a Tidal adapter that uses Oracle RAC is to expand the URL connection string where the Service name can be defined.
Standard defined connection string:
jdbc:oracle:thin:@hostname:1521:sid
Connection string for Oracle RAC:
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=hostname)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=servicename)))

Rac Configuration?

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