Need advice on oracle standalone/RAC hosts public hostname changes

Hi, We just had a datacenter move and original oracle database hosts (including both standalone and RAC nodes) got changed their public hosntame, ip/vip, getway etc.
I want to know do I have to deinstall everything then reinstall or a quicker way to deal with those?
Thanks

If just the public IP's or VIP's had changed this could be done without re-installing the binaries, using oifcfg and srvctl.
However the change in hostname is not supported as per Oracle Note "RAC: Frequently Asked Questions [ID 220970.1]".
It refers to the following to reconfigure your GI.....How to Modify or Deinstall Oracle Grid Infrastructure
This reconfiguration will likely be quicker than a re-install.

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DO I need SFRAC for Oracle 10g RAC on Sun Solaris

My platform is SUN Solaris 10 64 bit on v490 server. On the backend side, we are using EMC CX500 storage. We will use Veritas File system and Veritas CFS.
I would like to ask, Do I must need SFRAC to configure Oracle 10g RAC or Can I just use only Oracle CRS. I do not want to use ASM.
Please advise
Thanks,
Sam..

The VCFS usually requires a Veritas Cluster, thus you would have to use the product combination that is bundled as SFRAC as mentioned before. Metalink in addition says:
10 10gR2 64-bit Veritas Storage Foundation for Oracle RAC 5.0 Certified
There is one exception to this rule: Linux.
Veritas and Oracle support a standalone version of the Veritas Cluster Files System (and only this component) on Linux. This does not hold true for Solaris.
Concluding, if you want to use the VCFS you would need to get a VCS, which then basically means using SFRAC.
However, in this case, as mentioned before, you would not need ASM.

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2) Make sure you have enough disk space and memory.
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Need Advice on Oracle database 10.2.0.4.0 on RedHat Linux AS 4

Hi,
I would like to know whether Oracle Database 10.2.0.4.0 is certified to run on the RedHat Linux AS 4 (Nahant Update 6) with HugeMem Kernel?
actually, we were running the Oracle 10g(10.2.0.4.0) database on RedHat Linux AS 4 (Nahant Update 6) with SMP kernel. We faced "out of memory" error so we are planning to change the kernel to HugeMem from SMP.
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If you were facing the out of memory errors, could you elaborate more on the circumstances these errors showed up? You could be facing the same situation after upgrading the OS if you don't properly diagnose the root cause.
~ Madrid
http://hrivera99.blogspot.com

Oracle 10g RAC/Grid rename hostname and re-ip server?

Here is the situation. We are installing Oracle 10g in a RAC/Grid configuration. Servers were installed and configured with static IP's and unique hostname's according to instructions. The problem is the servers are being shipped to another location and the on-site administrators will have to rename the hostname's and give all the servers new IP addresses.
The question:
Is it possible to rename the hostname's and re-ip all the servers without having to reinstall all the Oracle servers in the RAC/Grid? Does anybody have any information on what will need to successfully accomplish this?
Regards,
Ed Bragg

Hi Ed!
I never tried this but I believe that after changing the IP addresses and reconfiguring the virtual IP's it should work. What you have to do is to reconfigure the ssh stuff with the keys, etc.
cu
Andreas

Oracle 9i rac interconnect

Hai,
I need clarification in oracle 9i rac internetconnect. Recently we have done installation of oracle 9i rac (9.2.0.4) on aix 5.3 with hacmp cluster for 2 nodes. We are not able to mount the second instance of the database after starting the first instance.
The problem was solved after adding cluster_interconnect parameter in the init.ora file. In all other servers, it is not given and oracle is selecting the interconnect automatically. For this new server alone this problem. I want to know from whether oracle is taking this interconnect if we dont mention the cluster_interconnect paramter. Even i have verified /etc/hosts file and entries are available in it. Requeting your help in this regard.

Where the IP information is stored and managed from depends on your implementation such as are you using a third party clusterware. If you are using Oracle clusterware its stored in the OCR.
You can check this using the following query...
SELECT * FROM GV$CLUSTER_INTERCONNECTS;
The source column will tell you where the interconnect information was obtained from.
BTW, if you are using the CLUSTER_INTERCONNECTS parameter you may loose some of the HA features here is something from the 10gR2 documentation..
" Failover and Failback and CLUSTER_INTERCONNECTS
Some operating systems support run-time failover and failback. However, if you use the CLUSTER_INTERCONNECTS initialization parameter, then failover and failback are disabled."
Question, have you tried other options such as NIC pairing and bonding to have dual interconnects instead of using the CLUSTER_INTERCONNECTS parameter.
Please check Metalink Note # 298891.1 talks about configuring NIC bonding on Linux there are similar options for other operating systems.
answered by Murali Vallath refer the link: this will be very useful to you.http://kr.forums.oracle.com/forums/thread.jspa?threadID=625931
hope, this will helps you.

Need to change IP address and host name on a ORACLE 10g RAC setup.

Hi Forum,
I have a task to change the IP address, host name and host related details for the ORACLE 10g RAC 2 node setup. So Can anyone tell me the procedure to do the same on both the nodes.
Regards
Prakash

change IP Address Public + VIP + Interconnect
http://surachartopun.com/2007/01/i-want-to-change-ip-address-on-oracle.html
change VIP name
http://surachartopun.com/2009/01/change-vip-hostname-on-oracle-rac.html
If you'd like to change HOSTNAME... Metalink (NOTE:220970.1)
Can I change the public hostname in my Oracle Database 10g Cluster using Oracle Clusterware?
Hostname changes are not supported in Oracle Clusterware (CRS), unless you want to perform a deletenode followed by a new addnode operation.
The hostname is used to store among other things the flag files and Oracle Clusterware stack will not start if hostname is changed.
Changing the Private Interconnect
o Change of the IP Address: change the IP address in the hosts file and/or DNS and make sure that ASM and the database also use the same interconnect
o Change of the private node name used by Oracle Clusterware: requires a reinstall of Oracle Clusterware
So, Public or Private hostnames can only be changed by removing/adding nodes, or reinstalling Oracle Clusterware. VIP Hostnames can be changed
But you can read this idea (reinstall CRS)
http://www.pythian.com/news/482/changing-hostnames-in-oracle-rac
http://surachartopun.com/2008/12/change-hostnames-oracle-rac.html
Edited by: Surachart Opun (HunterX) on Oct 25, 2009 10:58 PM

Oracle 10G RAC - Public & Heartbeat on 1 NIC

Hello all,
actually I am installing Oracle 10G RAC on rhel 4 (4 node cluster). But the Cluster Verification Utility aborts with errors. I checked the configToolAllCommands and tried to run the failed commands manually:
#/opt/oracle/crs/bin/oifcfg setif -global eth0.100/172.18.0.0:cluster_interconnect eth0.728/172.16.128.0:public eth0.498/172.17.1.0:cluster_interconnect
PRIF-50: duplicate interface is given in the input
PRIF-50: duplicate interface is given in the input
PRIF-50: duplicate interface is given in the input
Question:
Is it possible to put Public & Heartbeat on one NIC (eth0.728 & eth0.498)
If not is their any workaround for that issue?
Output /etc/hosts
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
172.18.253.48 eu0266.[company].net cfmaster
172.16.128.11 eu0200.[company].net eu0200
172.16.128.12 eu0201.[company].net eu0201
172.16.128.13 eu0202.[company].net eu0202
172.16.128.14 eu0203.[company].net eu0203
172.18.13.11 eu0200m.[company].net eu0200m
172.18.13.12 eu0201m.[company].net eu0201m
172.18.13.13 eu0202m.[company].net eu0202m
172.18.13.14 eu0203m.[company].net eu0203m
# Private section
172.17.1.11 eu0200-priv.[company].net eu0200-priv
172.17.1.12 eu0201-priv.[company].net eu0201-priv
172.17.1.13 eu0202-priv.[company].net eu0202-priv
172.17.1.14 eu0203-priv.[company].net eu0203-priv
# Virtual section
172.16.128.16 eu0200-vip.[company].net eu0200-vip
172.16.128.17 eu0201-vip.l[company].net eu0201-vip
172.16.128.18 eu0202-vip.[company].net eu0202-vip
172.16.128.19 eu0203-vip.[company].net eu0203-vip
Output install log:
Checking existence of VIP node application (required)
Check failed.
Check failed on nodes:
eu0203,eu0202,eu0201,eu0200
Checking existence of ONS node application (optional)
Check ignored.
Checking existence of GSD node application (optional)
Check ignored.
Post-check for cluster services setup was unsuccessful on all the nodes.
Command = /opt/[company]/oracle/crs/bin/cluvfy has failed
INFO: Configuration assistant "Oracle Cluster Verification Utility" failed
*** Starting OUICA ***
Oracle Home set to /opt/[company]/oracle/crs
Configuration directory is set to /opt/[company]/oracle/crs/cfgtoollogs. All xml files under the directory will be processed
INFO: The "/opt/[company]/oracle/crs/cfgtoollogs/configToolFailedCommands" script contains all commands that failed, were skipped or were cancelled. This file may be used to run these configuration assistants outside of OUI. Note that you may have to update this script with passwords (if any) before executing the same.
SEVERE: OUI-25031:Some of the configuration assistants failed. It is strongly recommended that you retry the configuration assistants at this time. Not successfully running any "Recommended" assistants means your system will not be correctly configured.
1. Check the Details panel on the Configuration Assistant Screen to see the errors resulting in the failures.
2. Fix the errors causing these failures.
3. Select the failed assistants and click the 'Retry' button to retry them.
Thanks in advance for your help!
Regards

Tads wrote:
Hi all,
I have a question about Oracle RAC and network interface.
We're using Oracle 10gR2 RAC with two nodes on Linux Red Hat.
Let's assume that the public network interface goes down.
I would like to know what happens with existing connections
on node with network interface with problems.
Are connections frozen, actives?
Can the users continue to use theses existing connections using the another node of RAC?If the interface is down? what do you think? All connections to this node will die. How does your application handle fail-over, does it attempt to reconnect or just have a complete application failure?
You should spend some time in a test lab where you can test this stuff for yourself. Read the documentation and there are tons of sites out there that purport to have all of your RAC/TAF/FAN/FAF questions. - I would read and trust the documentation first.
>
I know that the listener goes down and any other connections is allowed.
Thank you very much!!!!

Oracle 11gR2 RAC VM and SCAN and DNS and /etc/hosts (two) setup questions

Hi,
I am looking forward to setting up two Oracle 11gR2 RAC instances
on my Oracle VM test machine.
I plan on using the Oracle 11gR2 RAC VM template.
I want the final Oracle 11gR2 RAC instances to have SCAN that uses DNS.
The DNS will be pre-installed in the JeOS.
My first simple question about the setup is the following.
In my DNS name file, for example,
/var/named/chroot/var/named/milkyway.univ.db
do I need to provide the racnode1 and racnode2 information,
for example,
# DNS name file (snippet)
myjeos IN A 192.168.1.150
racnode1 IN A 192.168.1.161
racnode1-vip IN A 192.168.1.163
racnode2 IN A 192.168.1.162
racnode2-vip IN A 192.168.1.164
rac-scan IN A 192.168.1.131
rac-scan IN A 192.168.1.132
rac-scan IN A 192.168.1.133
Or, can I just provide only the rac-scan information
# DNS name file alternate (snippet)
myjeos IN A 192.168.1.150
rac-scan IN A 192.168.1.131
rac-scan IN A 192.168.1.132
rac-scan IN A 192.168.1.133
What I am getting at is the following.
Within the install process, will racnode1, racnode1-vip, racnode2,
and racnode2-vip host names and their IP address be written
to the RAC instances /etc/hosts files? (So I should not bother
to put them in the DNS name file like '# DNS name file alternate (snippet)'?)
Or, should I put the racnode and racnode-vip host names and IP addresses
in the DNS name file like '# DNS name file (snippet)'?
The second question is the following.
Are the cluster name and the scan name allowed to be different?
Currently, I would plan them to be different,
for example, rac-cluster and rac-scan.
Or, are they required to be the same,
for example, rac-cluster and rac-cluster.
Thank you.
AIM

AIM wrote:
do I need to provide the racnode1 and racnode2 information,
Or, can I just provide only the rac-scan information You need to provide all of it in DNS, because other hosts in your network will need to be able to resolve all of the normal, VIP and SCAN addresses for your RAC nodes. We write this data out to /etc/hosts just to reduce the amount of round-trip DNS requests the cluster nodes make for themselves.
Are the cluster name and the scan name allowed to be different?They can be different.

Need advice regarding physical standby databases in rac environment on orac

need advice regarding physical standby databases in rac environment on oracle 10G r2
I like to have have a Primary ( 10 node RAC cluster ) shipping to a physical standby ( 3 node RAC cluster ) shipping using LGWR .
So I have a lot of questions
1) What will be the performance overhead on the Primay if we are using LGWR SYNC option .
2) Does the overhead depends on the physical distance between primary & physical
3)Do you recommend a seperate private network for shipping logs between primary and standby.
4) I know that DGMGRL supports RAC only from 10g. So are there any know issues are bugs using DGMGRL is RAC environments.
Thanks in advance
-Satish

Generally you should have same CPU architecture and same operating system but it's not mandatory to have the exactly the same CPU model, the same number of CPU, the same RAM size etc.
Actually starting with 11.1 you don't need to have the same hardware setup: it 's even possible to have primary and standby database on different platforms: http://download.oracle.com/docs/cd/B28359_01/server.111/b28294/standby.htm#i72053.

Oracle-10g RAC on VMware installed on Windows-7(Host)

Hi,
My host OS is Windows-7. Docs. posted on this forum for RAC on VMware says: your Host OS should be Centos OS and in which you will install VMware and Client tools also. In this way u can clone another RAC2 machine.
But I have Oracle VM Virtual Box installed on Windows-7. Another is VMware Player installed on Windows-7.
I want to install Oracle-10g RAC on my Laptop. Please any suggestions or Docs. related to this.
Shakeel

Hi,
while this is a documentation of 11gR2 it gives enough information on how to setup a RAC in a VBox environment:
http://www.oracle-base.com/articles/11g/OracleDB11gR2RACInstallationOnOEL5UsingVirtualBox.php
Regards
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Oracle 10g RAC - public network interface down

Hi all,
I have a question about Oracle RAC and network interface.
We're using Oracle 10gR2 RAC with two nodes on Linux Red Hat.
Let's assume that the public network interface goes down.
I would like to know what happens with existing connections
on node with network interface with problems.
Are connections frozen, actives?
Can the users continue to use theses existing connections using the another node of RAC?
I know that the listener goes down and any other connections is allowed.
Thank you very much!!!!

Tads wrote:
Hi all,
I have a question about Oracle RAC and network interface.
We're using Oracle 10gR2 RAC with two nodes on Linux Red Hat.
Let's assume that the public network interface goes down.
I would like to know what happens with existing connections
on node with network interface with problems.
Are connections frozen, actives?
Can the users continue to use theses existing connections using the another node of RAC?If the interface is down? what do you think? All connections to this node will die. How does your application handle fail-over, does it attempt to reconnect or just have a complete application failure?
You should spend some time in a test lab where you can test this stuff for yourself. Read the documentation and there are tons of sites out there that purport to have all of your RAC/TAF/FAN/FAF questions. - I would read and trust the documentation first.
>
I know that the listener goes down and any other connections is allowed.
Thank you very much!!!!

Problem with Oracle 10g RAC VIP network setting at Solaris 9

Dear All,
I have tried to set up a Oracle 10g RAC Release 2.
With OS solaris 9, and 2 nodes.
The nodes setting as the following:
nodes 1:
Public address: 172.16.0.121
Private address: 192.168.0.121, 192.168.1.121 (dual path for heart beat)
nodes 2:
Public address: 172.16.0.122
Private address: 192.168.0.122, 192.168.1.122
And i have assigned two IP adress 172.16.0.131, 172.16.0.132 as the VIP address for the
RAC.
And the following is the /etc/hosts file:
root@shk01 # cat /etc/hosts
# Internet host table
127.0.0.1 localhost
# public address
172.16.0.121 shk01 loghost
172.16.0.122 shk02
# heart beat
192.168.0.121 shk01-priv1
192.168.1.121 shk01-priv2
192.168.0.122 shk02-priv1
192.168.1.122 shk02-priv2
# VIP address
172.16.1.131 vip-shk01
172.16.1.132 vip-shk02
But when i run the command "$ ./runcluvfy.sh comp nodecon -n shk01,shk02 -verbose"
it shows the error:
ERROR:
Could not find a suitable set of interfaces for VIPs.
Result: Node connectivity check failed.
I did try to add the VIP address on bge0:1, as i using bge0 for the public address.
Both nodes i did using the same interface name for it.
Anyone have idea for me to check out the error?
Also, I have other question about the raw device.
As there is option for setting for ASM or raw device. If choosing raw device, does it mean that it just need to
format the storage disk but without newfs it? And then the Oracle program will able to handle it?
Thanks,
Xentar

You don't seem to state categorically that you are using Solaris Cluster, so I'll assume it since this is mainly a forum about Solaris Cluster (and IMHO, Solaris Cluster with Clusterware is better than Clusterware on its own).
Clusterware has to see the same device names from all cluster nodes. This is why Solaris Cluster (SC) is a positive benefit over Clusterware because SC provides an automatically managed, consistent name space. Clusterware on its own forces you to manage either the symbolic links (or worse mknods) to create a consistent namespace!
So, given the SC consistent namespace you simple add the raw devices into the ASM configuration, i.e. /dev/did/rdsk/dXsY. If you are using Solaris Volume Manager, you would use /dev/md/<setname>/rdsk/dXXX and if you were using CVM/VxVM you would use /dev/vx/rdsk/<dg_name>/<dev_name>.
Of course, if you genuinely are using Clusterware on its own, then you have somewhat of a management issue! ... time to think about installing SC?
Tim
---

SCAN Name issue in Oracle 11gR2 RAC Installation

Hi,
I am trying to install Oracle 11gR2 RAC on VM ware and I got the INS-40922 (Invalid SCAN name). Do I need to create the SCAN name prior to the installation?
I have public,private, and VIP's. I am not sure how I create this SCAN Name. Please share your thoughts
Thanks

During installation of grid infrastructure SCAN will be automatically created. If you are using DNS then put the scan name and scan ip addresses entries in DNS . If you are not using dns/gns then put scanname and scan ipadress hosts file on each node in the cluster. Before installation, you should not be able to ping scan ipadresses.

Need advice on oracle standalone/RAC hosts public hostname changes

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