Change a 4-node RAC to a 2-node RAC (RHEL4 X86_64)

What do we need to do to take 2 nodes out of the RAC? Is there a documentation somewhere for this? RHEL 4 (2.6.9-55.ELsmp).

Hi Steve,
Try using this doc http://download.oracle.com/docs/cd/B19306_01/rac.102/b14197/adddelunix.htm
Regards,
Rodrigo Mufalani
http://mufalani.blogspot.com

Similar Messages

Domain Name change on 1 node of RAC

Is there oracle note for changing domain name on RAC?
Edited by: FrodoDot on Jan 9, 2010 5:55 PM

FrodoDot wrote:
Is there oracle note for changing domain name on RAC?
Edited by: FrodoDot on Jan 9, 2010 5:55 PMWhat oracle version?
If your RAC registered hostname + domain, this case like you change hostname
Check:
$ olsnodes
Changing Hostnames in Oracle RAC
http://www.pythian.com/news/482/changing-hostnames-in-oracle-rac/
1 node of RAC -> you may delete node/change hostname/add node
If domain, not registered in RAC... you may change it ... (no remove node or reinstall RAC)

Changing Cluster Master node

Hello,
I have two nodes rac setup. I just need to change the master node to different node in the cluster. How to change the master node?
Please help me out.

Hi,
Master Node not exist on RAC and I have pretty sure you are not talking about "OCR Master", you are talking about RESOURCE MASTER.
The only thing closest to something like a "Master" is that only one node has the role to update the Oracle Cluster Registry (OCR), all other nodes only read the OCR.
However this is just a role, which can easily switch between the nodes (but is normally fix as long as the responsible nodes lives).
This node hover is then called OCR master.
How do I change node which hold "OCR Master"?
You can't decide that and you can't change that manually the Clusterware do it automatically without human intervention.
OCR Master is not a MASTER NODE it's only a role.
Good answer here:
Re: Identify the OCR master node for 11.2
Re: which node will become master
Please don't confuse the concept of MASTER OCR with RESOURCE MASTER (e.g Data Block).
All nodes hold MASTER RESOURCE, because that I said : all nodes are equal.
With "billions" of data block spread out in memory of cluster (SGA Instances), one node maintains extensive information (i.e Lock, Version, etc) about a particular resource (i.e a data block).
So, one node has master resource of data block "data_01" the other node has a master resource of data block "data_02" and so on. If a node which hold master resource fails (shutdown) GCS choose other node in the cluster to be a MASTER Resource of that particular resource.
http://www.oracleracsig.org/pls/apex/RAC_SIG.download_my_file?p_file=1003567
RAC object remastering ( Dynamic remastering ) Oracle database internals by Riyaj
Message was edited by: Levi-Pereira

Unmarshaling fails after changing top level node from Array to Group

Hi all,
I created a custom OTD to read in the contents of a flat file. The top node was set to Array and it unmarshaled the data ok. Now one of my fellow developers changed my top node to a Group because in my otd there was not array delimiter set according to him. Now my unmarshaling fails with the following error:
There was an error during unmarshal.
<SOD>""<POS>"H14954510 ..." failed input match, after recordGroup[0]: left over 14290 bytes at end of data .
Does this mean there is more data than what is expected to be received?
When enabling Verbose Mode in my otd tester, the following out put is displayed:
[ parse #0 ]
[ parse 'otdInput', pos=0, end=14290, mandatory ]
[ parse group, count=0, order=0, must ]
[ parse #1 ]
[ parse 'recordGroup', pos=0, end=14290, mandatory ]
[ parse group, count=0, order=0, must ]
[ parse #2 ]
[ parse 'header', pos=0, end=14290 ]
[ parse group delim, Fog#13 ]
[ - push local delim list ]
[ - iteration #0 ]
[ parse 'rectype', pos=0, end=14290 ]
[ parse fixed, Fog#14, count=0 ]
[ - match BEGIN "H1" ]
[ - matched data 0 to 2: "H1" ]
[ - parse: result=1 ]
[ - parse: 'rectype' , done=false, pos=2, end=14290, last=EOD ]
[ parse 'PackListNumber', pos=2, end=14290 ]
[ parse fixed, Fog#458, count=0 ]
[ - matched data 2 to 22: "4954510             " ]
[ - parse: result=1 ]
[ - parse: 'PackListNumber' , done=false, pos=22, end=14290, last=EOD ]
[ parse 'SequenceNumber', pos=22, end=14290 ]
[ parse fixed, Fog#460, count=0 ]
[ - matched data 22 to 27: "00001" ]
[ - parse: result=1 ]
[ - parse: 'SequenceNumber' , done=false, pos=27, end=14290, last=EOD ]
[ parse 'StockNoticeNumber', pos=27, end=14290 ]
[ parse fixed, Fog#462, count=0 ]
[ - matched data 27 to 47: "49545100000100000000" ]
[ - parse: result=1 ]
[ - parse: 'StockNoticeNumber' , done=false, pos=47, end=14290, last=EOD ]
[ parse 'CurrentDate', pos=47, end=14290 ]
[ parse fixed, Fog#469, count=0 ]
[ - matched data 47 to 67: "                    " ]
[ - parse: result=1 ]
[ - parse: 'CurrentDate' , done=false, pos=67, end=14290, last=EOD ]
[ parse 'SequenceNumber:2', pos=67, end=14290 ]
[ parse fixed, Fog#471, count=0 ]
[ - matched data 67 to 72: "00001" ]
[ - parse: result=1 ]
[ - parse: 'SequenceNumber:2' , done=false, pos=72, end=14290, last=EOD ]
[ parse 'RecvStoreNumber', pos=72, end=14290 ]
[ parse fixed, Fog#473, count=0 ]
[ - matched data 72 to 89: "0000115888       " ]
[ - parse: result=1 ]
[ - parse: 'RecvStoreNumber' , done=false, pos=89, end=14290, last=EOD ]
[ parse 'SchedSendDate', pos=89, end=14290 ]
[ parse fixed, Fog#475, count=0 ]
[ - matched data 89 to 98: "080108   " ]
[ - parse: result=1 ]
[ - parse: 'SchedSendDate' , done=false, pos=98, end=14290, last=EOD ]
[ parse 'CreationDate', pos=98, end=14290 ]
[ parse fixed, Fog#477, count=0 ]
[ - matched data 98 to 107: "080108   " ]
[ - parse: result=1 ]
[ - parse: 'CreationDate' , done=false, pos=107, end=14290, last=EOD ]
[ parse 'CreationTime', pos=107, end=14290 ]
[ parse fixed, Fog#677, count=0 ]
[ - matched data 107 to 113: "091212" ]
[ - parse: result=1 ]
[ - parse: 'CreationTime' , done=false, pos=113, end=14290, last=EOD ]
[ parse 'RefNoticeNum', pos=113, end=14290 ]
[ parse fixed, Fog#547, count=0 ]
[ - matched data 113 to 133: "4954510             " ]
[ - parse: result=1 ]
[ - parse: 'RefNoticeNum' , done=false, pos=133, end=14290, last=EOD ]
[ parse 'ASN', pos=133, end=14290 ]
[ parse fixed, Fog#679, count=0 ]
[ - matched data 133 to 136: "ASN" ]
[ - parse: result=1 ]
[ - parse: 'ASN' , done=false, pos=136, end=14290, last=EOD ]
[ parse 'TRANSACTION_ID', pos=136, end=14290 ]
[ parse fixed, Fog#681, count=0 ]
[ - matched data 136 to 164: "ASN08010849545100..." ]
[ - parse: result=1 ]
[ - parse: 'TRANSACTION_ID' , done=false, pos=164, end=14290, last=EOD ]
[ - retry parent delimiter ]
[ - retry failed: overshoot, del=289, pos=0 ]
[ - parse: result=0 ]
[ - for #2: count=-1 ]
[ - parse: result=0 ]
[ - parse: 'recordGroup' , done=false, pos=0, end=14290, last=EOD ]
[ - for #1: count=0 ]
[ - parse: result=1 ]
[ - parse: 'otdInput' , done=false, pos=0, end=14290, last=EOD ]
[ - for #0: count=1 ]
What should I do to correct this?
Thanks & Kind Regards,
Richard

Can you tell me a quick summary of what you do did to solve this? I am having a similar error.

How can i change the particular node color in Jtree?

I have constructed the tree.i dont know how to set the color for the particular node then how can i change the particular node icon depends on some conditions like if we will give the input whether it is available in jtree that node icon only changed.Anyone please help me as soon as possible.

hi,
i saw that tutorial.from that book i dont get the particular node cell renderer.i got a cell renderer for tree only.i attached my code in this mail.pls see and help me if u will do
mport pack.Prop;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Font;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.text.Position;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreeCellRenderer;
import javax.swing.tree.TreePath;
public class ReadProperty3 extends JFrame{
String str,key;
static JTree tree;
static Vector v;
StringTokenizer st;
static DefaultMutableTreeNode root;
DefaultMutableTreeNode t;
public Object[] o;
public static void main(String[] args) throws IOException {
ReadProperty3 r = new ReadProperty3();
Prop p=new Prop();
JFrame f=new JFrame();
p.show();
Object[] o=v.toArray();
int startRow = 0;
String prefix =p.s;
TreePath path = tree.getNextMatch(prefix, startRow, Position.Bias.Forward);
//if(prefix.equals(root.getChildAt(0).toString()))
if(prefix.equals("2000"))
     System.out.println("Node 2000 found");
     else if(prefix.equals("3000"))
          System.out.println("Node 3000 found");
     else if(prefix.equals("4000"))
          System.out.println("Node 4000 found");
     else
          System.out.println("Node not found");
     for(int i=0;i<v.size();i++)
          //((DefaultTreeModel)tree.getModel()).reload();
          DefaultTreeCellRenderer ren=(DefaultTreeCellRenderer)tree.getCellRenderer();
          Icon openIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/execute.gif");
          Icon closedIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/execute.gif");
          Icon leafIcon = new ImageIcon("C:/apache-tomcat-5.5.12/webapps/jsp-examples/images/read.gif");
          if(o[0].equals(p.s))
               ren.setBackgroundSelectionColor(Color.MAGENTA);
               ren.setBackgroundNonSelectionColor(Color.YELLOW);
               //ren.setTextSelectionColor(Color.YELLOW);
               //ren.setTextNonSelectionColor(Color.BLUE);
               ren.setClosedIcon(closedIcon);
               ren.setFont(new Font("Impact",Font.ITALIC,14));
          else if(o[1].equals(p.s))
               ren.setLeafIcon(leafIcon);
               ren.setFont(new Font("Impact",Font.ITALIC,10));
               UIManager.put("Tree.leafIcon", leafIcon);
          else if(o[2].equals(p.s))
               ren.setOpenIcon(openIcon);
               ren.setFont(new Font("Dialog",Font.BOLD,9));
public ReadProperty3(){
     super("JTree With Properties");
     try{
int c = 0;
while(c == 0){
c = 1;
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter file name which has properties extension :");
str = bf.readLine();
File f = new File(str + ".properties");
if(f.exists()){
Properties pro = new Properties();
FileInputStream in = new FileInputStream(f);
pro.load(in);
System.out.println("Key: " + pro.keySet());
System.out.print("Enter Key : ");
key = bf.readLine();
String p = pro.getProperty(key);
st = new StringTokenizer(p,"=,");
root=new DefaultMutableTreeNode(key);
v=new Vector();
while(st.hasMoreTokens())
     String val=st.nextToken();
     v.add(val);
     o=v.toArray();
     System.out.println(val);
     t=new DefaultMutableTreeNode(val);
     root.add(t);
     tree=new JTree(root);
     tree.setEditable(true);
     JScrollPane jp=new JScrollPane(tree);
     // tree.setCellRenderer(new CellRenderer());
     Container content=getContentPane();
     content.add(jp,BorderLayout.CENTER);
setSize(250,275);
setVisible(true);
addWindowListener(new ExitListener());
else{
c = 0;
System.out.println("File not found!");
catch(IOException e){
System.out.println(e.getMessage());
}

How to change the primary node for a resource group. Solaris cluster. 3.2

I have searched for hours to try to find this answer.
I want to change the primary node of a resource group.
example.
log-rg runs on node1.this.com it will list node1.this.com first when you do clrg status.
But we run it on node2.this.com
A reboot will have log-rg run on node1 after a reboot. We have to switch it by hand to run
on node2 .
I want it to know that it should always try to first run on node1, but still failover to node2 if the situation arises.
scswitch -z -g log-rg -h node2 (and all the fully qualified versions of this command)
would not work.
How tow can I change the primary node for log-rg (logZ) from node1 to node2???
thanks!

Hi.
Show current configuration for RG:
clrg show -v log-rg
For change order Nodelist you can:
clrg remove-node -n node1 log-rg
clrg add-node -n node1 log-rg
But tis command more destructive. It may be problem add-node back to this RG.
I don't know why Validation of resource log-tiv in res group log-rg on node1 failed.
Need more know about configuration, resourse type, etc.
May be it's better create for test small RG and try move and change resource.
Nodelist - say candidates for run this resources. But at this moment RG can run on any from this list.
Docs about Sun Cluster.
http://download.oracle.com/docs/cd/E19787-01/820-7360/fxjbo/index.html
Typical tasks:
http://download.oracle.com/docs/cd/E19787-01/820-7359/z40002701009474/index.html
Adding or Removing a Node to or From a Resource Group
http://download.oracle.com/docs/cd/E19787-01/820-7359/z400043a1055200/index.html

How to change specified hierachy node to master data attribute automatic?

Dear BW experts:
How to change specified hierachy node to master data attribute automatically? I have a retail business: I have a fixed material group hierachy in R3 Retail ,Now I will extract the material group hierachy ,my goal is that the specified material group hierachy node as dimension in query ,not show hierachy level,So I need change specified material group hierachy node to material group's attribute.
Anybody solve the requests?
Thank you for your help in advance !

If I understand your requirement correctly, you need to have a specific Material Group Hierarchy level (Say Level 2) to be an attribute of Material Group. Usually, this level represents a Brand or Segment, or something with specific meaning.
If this is correct, here are the things you need to do:
1) Create an InfoOnject for this specific attribute representing the specified hierarchy level
2) Add this InfoObject to Material Group as an navigational attribute
3) Select this navigational attribute in your InfoProvider
4) Create a transformation routine for this navigational attribute in Material Group Transformation so that the specified hierarchy level for Material Group will be found and populated. The detail of this routine will depend on your specific requirement. Also, you have to make sure Material Group Hierarchy is updated before Material Group attributes are loaded. If you are not family with ABAP, please ask an ABAPer to help you for the Transformation Routine.
5) Include this navigational attribute in your query along with other required InfoObjects.
Hope this help and good luck!
Bill

CHANGE cRIO-PB node @ RUNTIME

Hi all,
I'm having trouble trying to change the profibus node number of a cRIO-PB comsoft module.
In particular I have to distribute the same FPGA application on different cRIO and only thing that changes is the profibus node.
So I create an ini file from where I read the node number and through a read/write method I pass it to FPGA during startup but It doens't work.
I tried to contact comsoft guys but I received this answer:
Any suggestions?
Regards
Paolo.
Paolo
The world is composed by 10 types of persons:
the ones who understand the binary system, the ones who don't.

Ciao Paolo,
I'm sorry for the late reply, but I've been out of office in the last days...
I've taken a look at the code you sent me and i created a simple example that solved the problem.
I'm attaching the screenshots of the FPGA vi and the RT vi.
Basically I've added a while loop before reading the address, in order to add some delay and I had this two results:
If I write the address control and then run the FPGA VI the while loop executes one iteration and the address i written/ read correctly
If I run the FPGA VI and then write the control the while loop executes 100 iterations (2.5 microseconds), and the address is written/ read correctly
Try to modify the FPGA code like I did and let me know if it works.
In the RT VI I've put a wait of 2000 ms just to be sure to wait for the FPGA VI to execute the node "unbundle->address 2".
Hope this helps.
Ciao,
Andrea
Andrea N.
Systems Engineer ATE & RF - Mediterranean Region
National Instruments Italy
Attachments:
FPGA VI.jpg ‏642 KB
RT VI.jpg ‏934 KB

Change hostname on nodes in STANDY RAC Cluster

Hi,
I would like to know the required steps to modify and hostname configuration in Oracle RAC if I update the hostnames of the 2 nodes in the RAC
Im running Redhat EL 5 , Oraclle 11g
Thanks in advance

I don't think you could change the hostname with CRS, without re-installing CRS.

How to change from single Node to RAC for AIA

Recently I have installed AIA 11.1.1.5, but during installation I selected single node. But now I would like to configure it to use RAC. How to do it? Reinstalling is not an option.

Hi,
Hope this helps
http://proskudin.blogspot.com/2007/06/two-level-tabs.html
Br,Jari

Changing GLOBAL_NAME in 11g RAC

Hi, All -
I am running a two node RAC 11g (11.1.0.7) database on RHEL5. I need to change the GLOBAL_NAME.
SQL> select * from global_name;
GLOBAL_NAME
dbname
SQL> ALTER DATABASE RENAME GLOBAL_NAME TO dbname.companyname.com
I just want to confirm that I only have to run this on one node and fix the db links.
Are there any other steps involved since it is a RAC environment?
Thanks in advance!

check this
http://asanga-pradeep.blogspot.com/2010/08/changing-global-name-and-domain-name-in.html
http://download.oracle.com/docs/cd/B19306_01/server.102/b14228/best_gen.htm#CHDHCGJJ

PRIF-33 and CRS-02307 while changing public network interface, RAC

Hi,
I'm working on an Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management. It's a 3 nodes RAC: mgvdb01/02/03
After the installation I had to change IP (different IP and Subnet) to the RAC:
From 172.17.1.0/24 to 10.19.201.0/24.
Node from 172.17.1.31/32/33 to 10.19.201.31/32/33.
The same for VIP(s): from 172.17.1.131/132/133 to 10.19.201.131/132/133.
The oifcfg iflist shows correct ips configuration:
[oracle@mgvdb01 bin]$ ./oifcfg iflist -p -n
eth0 10.19.201.0 PRIVATE 255.255.255.0
eth1 172.17.100.0 PRIVATE 255.255.255.0
I'm following doc 276434.1 from Metalink: How to Modify Public Network Information including VIP in Oracle Clusterware, starting from Case III "Changing public network interface, subnet or netmask".
But at the first operation I've a problem:
[oracle@mgvdb01 bin]$ ./oifcfg getif
eth0 172.17.1.0 global public **THIS HAS TO BE CHANGED**
eth1 172.17.100.0 global cluster_interconnect
[oracle@mgvdb01 bin]# ./oifcfg delif -global eth0/172.17.1.0
PRIF-33: Failed to set or delete interface because hosts could not be discovered
CRS-02307: No GPnP services on requested remote hosts.
PRIF-32: Error in checking for profile availability for host mgvdb02
CRS-02306: GPnP service on host "mgvdb02" not found.
PRIF-32: Error in checking for profile availability for host mgvdb03
CRS-02306: GPnP service on host "mgvdb03" not found.
[oracle@mgvdb01 bin]$ ./oifcfg delif -node mgvdb01 eth0/172.17.1.0
[oracle@mgvdb01 bin]$ ./oifcfg setif -node mgvdb01 eth0/10.19.201.0:public
PRIF-33: Failed to set or delete interface because hosts could not be discovered
CRS-02307: No GPnP services on requested remote hosts.
PRIF-32: Error in checking for profile availability for host mgvdb02
CRS-02306: GPnP service on host "mgvdb02" not found.
PRIF-32: Error in checking for profile availability for host mgvdb03
CRS-02306: GPnP service on host "mgvdb03" not found.Then I restart Clusterware service, but issuing
[oracle@mgvdb01 bin]$ ./oifcfg getif
eth0 172.17.1.0 global public
eth1 172.17.100.0 global cluster_interconnectnothing seems to be changed.
This is blocking following operations, the ones in Case IV.
Do you have any suggestion?
Thanks in advance,
Samuel

Hi,
I'm working on an Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management. It's a 3 nodes RAC: mgvdb01/02/03
After the installation I had to change IP (different IP and Subnet) to the RAC:
From 172.17.1.0/24 to 10.19.201.0/24.
Node from 172.17.1.31/32/33 to 10.19.201.31/32/33.
The same for VIP(s): from 172.17.1.131/132/133 to 10.19.201.131/132/133.
The oifcfg iflist shows correct ips configuration:
[oracle@mgvdb01 bin]$ ./oifcfg iflist -p -n
eth0 10.19.201.0 PRIVATE 255.255.255.0
eth1 172.17.100.0 PRIVATE 255.255.255.0
I'm following doc 276434.1 from Metalink: How to Modify Public Network Information including VIP in Oracle Clusterware, starting from Case III "Changing public network interface, subnet or netmask".
But at the first operation I've a problem:
[oracle@mgvdb01 bin]$ ./oifcfg getif
eth0 172.17.1.0 global public **THIS HAS TO BE CHANGED**
eth1 172.17.100.0 global cluster_interconnect
[oracle@mgvdb01 bin]# ./oifcfg delif -global eth0/172.17.1.0
PRIF-33: Failed to set or delete interface because hosts could not be discovered
CRS-02307: No GPnP services on requested remote hosts.
PRIF-32: Error in checking for profile availability for host mgvdb02
CRS-02306: GPnP service on host "mgvdb02" not found.
PRIF-32: Error in checking for profile availability for host mgvdb03
CRS-02306: GPnP service on host "mgvdb03" not found.
[oracle@mgvdb01 bin]$ ./oifcfg delif -node mgvdb01 eth0/172.17.1.0
[oracle@mgvdb01 bin]$ ./oifcfg setif -node mgvdb01 eth0/10.19.201.0:public
PRIF-33: Failed to set or delete interface because hosts could not be discovered
CRS-02307: No GPnP services on requested remote hosts.
PRIF-32: Error in checking for profile availability for host mgvdb02
CRS-02306: GPnP service on host "mgvdb02" not found.
PRIF-32: Error in checking for profile availability for host mgvdb03
CRS-02306: GPnP service on host "mgvdb03" not found.Then I restart Clusterware service, but issuing
[oracle@mgvdb01 bin]$ ./oifcfg getif
eth0 172.17.1.0 global public
eth1 172.17.100.0 global cluster_interconnectnothing seems to be changed.
This is blocking following operations, the ones in Case IV.
Do you have any suggestion?
Thanks in advance,
Samuel

Change of IP in RAC

Hi,
Thanx a lot for this discussion forms as i am getting the response very quickly.
What happens in RAC environment if i change my instances public IP /virtual IP.
Does it affects ????
If it doesn't what and where are the changes have to be made??
Thank you.

The following will have to be considered:
>
- You must ensure to your SAN storage vendor that the IP change will not affect the RAC servers. On my client's case, they moved from 192.xxx.xxx to 172.xxx.xxx segment. We consulted to the EMC engineer if there will be problems with the Navisphere detecting the new IP (172.xxx.xxx) of the RAC servers, luckily after the restart, the LUNs were still detected and the new IP was recognized
- Changing the Public and VIP will entail updating the Net Services for the new IPs
- Database links going to the RAC servers have to be modified to reflect the new IPs
- NFS mount points on RAC servers should be noted, edit the /etc/exports on the source servers to reflect the new IPs
- DNS entries on the 172.xxx.xxx have to be created
- DNS entries on the 192.xxx.xxx have to be deleted
- If you are using OCFS2, you to edit the /etc/ocfs2/cluster.conf to reflect the new IPs
- Also, you must be with your network engineer during the activity. If ever you encounter some route problems, he could easily solve it.
>
Will there be a data center movement? Or just physical rewiring?
There are metalink notes that will help you on this activity:
>
How to Change Interconnect/Public Interface IP or Subnet in Oracle Clusterware
     Doc ID:      283684.1
Modifying the VIP or VIP Hostname of a 10g or 11g Oracle Clusterware Node
     Doc ID:      276434.1
Considerations when Changing the Database Server Name or IP
     Doc ID:      734559.1
Preparing For Changing the IP Addresses Of Oracle Database Servers
     Doc ID:      363609.1
The Sqlnet Files That Need To Be Changed/Checked During Ip Address Change Of Database Server
     Doc ID:      274476.1
>
- Karl Arao
http://karlarao.wordpress.com

Change system time in RAC cluster

Hi,
We need to change the system time of two nodes involded in a RAC cluster, both the nodes are almost 15 minutes ahead of real time but are in sync with each other.
Does Oracle database require to bounce to get the latest changed time?
or does the whole cluster services needed to be stopped for 15 minutes after changing the time and then started? just in case not to confused with the transactions happened when the system was 15 minutes ahead.
The metalink note ID 368539.1 explains that PMON process does the service registration when the database was started. The PMON will not take the changed time dynamically?
We have oracle 10.2.0.2 database on HP UX 11.31
Please clear this confusion.
Thanks.

Your RAC Cluster would be using either of
a. NTP --- external to Oracle
b. Oracle Cluster Time Synchronization Service -- part of the Oracle Grid Infrastructure
It seems that you are not using NTP -- else the two nodes would have the same time as "the rest of the world".
You should see "Cluster Time Synchronization Service" in your clusterware logs.
Since you plan to reset the time backwards, I suggest that you shutdown and reset the time manually.
Remember that timestamps written to various log files and "last update" time of various files themselves, will duplicate or overlap with existing files.
Note : PMON service registration doesn't come into play here.
Hemant K Chitale

Changing ip addresses of rac hosts.

I have a 2 node oracle cluster running 10.2.0.3 on linux itanium and we need to move the 2 servers to a new network.
Can anyone point me to a good doc the detail the steps involved with changing the ip addresses for the rac private interconnect?
Not sure in which order do I change the ipaddress configurations I assume the clusterware needs to be disabled while this is reconfigured?
Any help is greatly appreciated.
Thx.

Check MOS note :
Note 283684.1 How to Change Interconnect/Public Interface IP Subnet in a 10g Cluster
Also see :
http://blogs.oracle.com/AlejandroVargas/2007/01/rac_ips_reconfiguration_exampl.html
Regards
Rajesh

Change a 4-node RAC to a 2-node RAC (RHEL4 X86_64)

Similar Messages

Maybe you are looking for