VIP address

hi,
kindly explain me what's the importance of VIP address in RAC, as I was reading through official documentation and went through the excerpt:
"A virtual host name (or IP address) is a public node name that is used to reroute client requests sent to the node if the node is down."
what I think, is that why should we re-route the requests to the down node, it shoud be transfered to the available nodes...?
kindly explain me the right notion of the VIP address...
Thanx

Hope, the following explanation may clear your doubt:
When a node fails, the VIP associated with the failed node is automatically failed over to one of the other nodes in the cluster.
If failover is configured, the existing connection of a failed node will be redirected to the new node.
Subsequent packets sent to the VIP go to the new node, which will send error RST packets back to the clients.
Typically, without using VIPs, clients connected to a node that died will often wait for a TCP/IP timeout period before getting an error. This can be as long as minutes(10) or more.
Regards,
Jaffar

Similar Messages

Want to change Public, private and vip address on RAC 10g R2 windows 2003

The network section told us the configuration of the network who support our cluster will have to change all ip address.
We are looking for a complet document who give all the step by step instructions how to make this change.
We have to change the Public, private and VIP at the same time of our 3 nodes cluster.
We know the OCRCFG will be impact. So we will take backup of it first.
Can someone are able to indicate us how to procede to execute this task.
Thanks

Hi,
i check the Note:283684.1 you give me, but it didn't give all the answers to my problem.
I finally found a recipe to make the job. I would like to tell you it's not supported be Oracle, but it work very well
Don't forget to take a good backup of the ocrcfg and vote disk before you start.
Here we go:
Stop all Oracle service on all nodes before the change of the address, the low format of the ocrcfg and vote disk
change the address in the file host in C:\WINDOWS\system32\drivers\etc with the new address
change the ip address in the window network definition connection with the new address
ocopy \\.\ocrcfg d:\backup\ocrcfg.dmp
ocopy \\.\votedsk1 d:\backup\votedsk1.dmp
rem go to directory of the cluster binary crs\bin
cd /D D:\Oracle\Ora10g\crs/bin
rem Format raw ocrcfg and vote disk
LogPartFormat.exe \\.\ocrcfg /q
LogPartFormat.exe \\.\votedsk1 /q
rem Run in prompt mode the cluster setup
rem crssetup.exe config -nn %s_nodenumberlist% -pn %s_privatenamelist% -ch %ORA_CRS_HOME% -oh %s_OracleHome% -c %s_clustername% -l "%s_languageid%" -q %s_votedisklist% -g %s_usergroup%
rem example for 2 node
crssetup.exe config -nn host_name_node_1 ,1,host_name_node_2,2 -pn host_name_node_1-priv,1,host_name_node_2-priv,2 -ch D:\Oracle\Ora10g\crs -oh D:\Oracle\Ora10g\crs -c crs_lab -l "CANADIAN FRENCH_CANADA.WE8MSWIN1252"; -q "\\.\votedsk1"
rem ensures that all nodes are configured with the same port for the ONS
racgons.exe add_config host_name_node_1:6200 host_name_node_2:6200
rem oifcfg to direct components to use specific network interfaces
oifcfg.exe setif -global "Public"/10.200.5.0:public "Prive"/192.169.255.0:cluster_interconnect
rem to rebuild the vip address vipca in wondow componant and make the incription in the cluster (in prompt mode or online)
rem at the same time it will create the gsd and ons service
vipca.bat -silent -nodelist "host_name_node_1,host_name_node_2" -nodevips "host_name_node_1/host_name_node_1-vip/255.255.255.0/Public,host_name_node_2/host_name_node_2-vip/255.255.255.0/Public";
rem vipca
rem check the state of the crs services (inscription)
crs_stat -t
rem now make the registration of the listener in the cluster.
rem important don't use the prompt command below, it will give you a crs-0223 error at the startup service
Rem to solve this problem use netca on line
rem crs_register ora.host_name_node_1.LISTENER_host_name_node_1.lsnr -dir D:\Oracle\Ora10g\crs\crs\profile
rem crs_register ora.host_name_node_2.LISTENER_host_name_node_2.lsnr -dir D:\Oracle\Ora10g\crs\crs\profile
rem srvctl start nodeapps -n host_name_node_1
ren srvctl start nodeapps -n host_name_node_2
netca
rem check the state of the crs services (inscription)
crs_stat -t
rem start oracle object service and cluster volume before registering and accessing to asm services
sc \\host_name_node_1 start ”Oracle Object Service”
sc \\host_name_node_1 start OracleClusterVolumeService
sc \\host_name_node_2 start ”Oracle Object Service”
sc \\host_name_node_2 start OracleClusterVolumeService
rem go the the rdbms directory to make the registration of asm and the database
set ORACLE_HOME=D:\Oracle\Ora10g\rdbms
rem add the service asm in the cluster in my case asm1 and asm2 for my 2 nodes
srvctl add asm -n host_name_node_1 -i +ASM1 -o %ORACLE_HOME%
srvctl add asm -n host_name_node_2 -i +ASM2 -o %ORACLE_HOME%
rem start the asm service on each node
srvctl start asm -n host_name_node_1
srvctl start asm -n host_name_node_2
rem check the state of the crs services (inscription)
crs_stat -t
rem go to the bin directory of rdbms directory to make the registration of the database
cd /D D:\Logiciels\Oracle\Ora10g\rdbms/bin
rem register the database (in my case labotary lab) and the to database service (lab1 and lab2) of each node
srvctl add database -d lab -o %ORACLE_HOME%
srvctl add instance -d lab -i lab1 -n host_name_node_1
srvctl add instance -d lab -i lab2 -n host_name_node_2
rem finally start the database
srvctl start database -d lab
rem go to directory of the cluster binary crs\bin
rem all the services
cd /D D:\Logiciels\Oracle\Ora10g\crs/bin
rem you can go in the database with sqlplus and check all your components
crs_stat -t
I hope this will help someone who are in the same situation
Edited by: ron_berube on 2008-12-12 09:21
Edited by: ron_berube on 2008-12-12 10:08
Edited by: ron_berube on 2008-12-13 08:25
Edited by: ron_berube on 2008-12-18 10:49

Cisco ACE can rserver use it's own VIP address ?

we've configured a serverfarm with a real server and a VIP.
The serverfarm can be reached and is functioning well.
Now we want the rserver to be able to reach it's own VIP address.
This is needed because the rserver has multiple websites which need each other
and we want to have load balancing.
Is this a supported configuration ?
regards,
Sebastian

you can simply add a new policy to match the servers ip addresses and then configure nat.
ie:
class-map match-all servers
2 match source-address 192.168.30.48 255.255.255.255
policy-map multi-match client-nat
class servers
nat dynamic 1 vlan 30
interface vlan 20
ip address 192.168.20.121 255.255.255.0
alias 192.168.20.124 255.255.255.0
peer ip address 192.168.20.123 255.255.255.0
no normalization
mac-sticky enable
access-group input PERMIT-ANY
service-policy input ALLOW-ALL
service-policy input client-nat
service-policy input SLB1
no shutdown
interface vlan 30
bridge-group 30
no normalization
mac-sticky enable
access-group input PERMIT-ANY
nat-pool 1 10.10.20.1 10.10.20.100 netmask 255.255.255.0
In this case I nat the to an address in 10.10.20.0/24 subnet and I have a static route on the servers pointing this subnet to ACE.
You could also use a free ip from the same server subnet and no static route would be required.
Also if ACE is already the default gateway for the servers, no specific static route is required.
Also, in this example, I'm not really nating a server. But the idea is the same. The only difference is that in your case, the outgoing interface will be the same as the incoming interface. Me I have everything in vlan 20 and vlan 30. You will have everything in vlan X and only vlan X.
Gilles.

Question about multiple listeners and vip addresses in rac.

We have a 2 node rac cluster running 10.2.0.3 on rhel4 on the itanium platform. We have a need where we want to connect the 2 hosts up to another network temporarily by configuring an additional network interface on each server so that we can test some connections from a different network.
My question is can you configure multiple listeners on the same server in which the newly added listener can be configured to service requets on the new network interface?
Because it's rac would you need to configure an additional vip address? I am not sure that you can have multiple vip's on a server?
Has anyone configured rac in such a way, any help is appreciated.

can you configure multiple listeners on the same server in which the newly added listener can be configured to service requets on the new network interface?Yes, you can but you should not be doing this. Listener is a node specific resource and one listener can server multiple services. You actually can create multiple services within the database for different set of users and all can be registered to the same listener.
Because it's rac would you need to configure an additional vip address? What do you mean by additional IP?
You have installed 10g RAC where you have already configured virtual IPs. Why do you want to have additional one? node1 - static ip1, vip1, pvtip1
node2 - static ip2 vip2, pvtip2
total 6
I am not sure that you can have multiple vip's on a server?Nothing to do with the server, they are based on public IP. Yes you can create multiples vip's based on same public IP. This is possible, But you do not need to do this in RAC environment.

I am not able to telnet my content rule VIP address

I am not able to telnet my content rule VIP address and port number. But I am able to direct to telnet to service servers, which are added into the content rule set. Can anyone tell me why. I have update the latest WEBOS 5.00 Build 69. The content switch model is 11050. thank you very much .

Is possible one armed and in line in the same content switch ?
Currently I have some content rule are using one armed solution, there is only one rule I need to make the server see the original IP. I guess my question is , can I have this rule use in -line solution only, so I will not have to impact other rules set.
The other question since this content rule's service sever have only one interface only, Can I have this in-line solution go in the content switch and come out content switch in the same server farm switch ? Thank you for all the help.

ACE - VIP address on different subnet

Hello,
Is it possible to configure a VIP address that is different from the VLAN subnet where it is applied on?
Fe:
VIP is 10.10.10.1/24 on VLAN 10
Interface of ACE in VLAN 10 is 192.168.1.1/24
On the upstream routers, a static route points to the VIP address (subnet) with next-hop the ACE address?
Thanks.

Unfortunately I dont have a test environment either to verify this.
I dont think you will see arp entries as the address doesnt belong to an interface.
You should see the VIPs active (sh service policy detail) for these non-interface VIPs.
If those are active then I think once client request hits the ACE it should take care of it.
I have deployed such solution with FWSM (no VIPs there but used Natted addresses not belonging to any attached interface ) and as per that experience I think it should work.
But yes you need actual clients to test this scenario.
Syed

How to get current VIP address from session ?

Hi,
How I could retrieve current VIP address which my session is connected to from remote JDBC application?
It's easy to get instance_number but how to convert it into VIP/IP address information? Some x$ views? ($cluster_interconnects only shows private IPs).
Env: Java JDBC, Oracle 11g RAC Linux x86_64

Hi, got some free time this evening and this is how I solved it:
1) my app is connecting via the JDBC to specific RAC instance (and measuring JDBC connect time)
2) getting first public RAC IP address (but not the VIP one), this is how it works (it's being executed on JDBC db connection from point #1):
SELECT * FROM (
     SELECT IP_KSXPIA FROM X$KSXPIA WHERE
          PUB_KSXPIA='Y' AND
          IP_KSXPIA IS NOT NULL AND
          IP_KSXPIA != '0.0.0.0'
) WHERE ROWNUM = 1I'm not sure that checking IP_KSXPIA for being NOT NULL and != 0.0.0.0 is necessary. I've did it for as I think that some interfaces may appear in that view when using bonding/trunking/etc.
3) connecting TCP pure Java socket to IP_KSXPIA :)
[vnull@xeno run]$ ./run.sh -d ERAC -i ERAC1 -i ERAC2
         ------ ------conntime------ -----------stmt---------------
         tns    rac# tcpping    jdbc rac# ins sel upd del plsql
23:11:05 ERAC      2      17     204 X->2   35    8    4   91     0
23:11:05 +ERAC1    1       0     176 X->1   90    4    6   59     0
23:11:05 +ERAC2    2       0      68 X->2    6    3    4    7     0
23:11:06 ERAC      1       1      66    2    4    2    4    4     0
23:11:06 +ERAC1    1       2      67    1    6    1   16    4     0
23:11:06 +ERAC2    2       1      58    2    4    3    3    3     0
23:11:07 ERAC      2       1      56    2    4    2    3    4     0
23:11:07 +ERAC1    1       0      56    1    5    1    3    5     0
23:11:07 +ERAC2    2       0      56    2    5    2    3    4     0
23:11:08 ERAC      1       1     101    2    6    1    5    3     0
23:11:08 +ERAC1    1       1      60    1 113    2    6   84     0
23:11:08 +ERAC2    2       2      61    2   89    2    4    3     0
23:11:09 ERAC      1       5     104    2    5    1    4    4     0
23:11:09 +ERAC1    1       2      76    1    7    2    4    4     0
23:11:09 +ERAC2    2       1      64    2    4    1    5    3     0
23:11:10 ERAC      2       2      86    2    6    1    2    4     0
23:11:10 +ERAC1    1       1      56    1    6    1    3    3     0
23:11:10 +ERAC2    2       1      94    2    4    2    4    3     0

OID count connection whit VIP Address or Content

Hi!
I need an OID to do count connection with "content" or "VIP Address.
Thank's!

OID
1.3.6.1.4.1.2467.1.36.14.1.13.1.0 and 1.3.6.1.4.1.2467.1.36.14.1.13.1.0
apCntsvcCntName.9.77.105.100.100.108.101.115.101.120.6.76.111.119.101.108.10
8.7.97.110.100.111.118.101.114 (octets) Lowell
apCntsvcCntName.9.77.105.100.100.108.101.115.101.120.6.76.111.119.101.108.10
8.8.119.101.115.116.102.111.114.100 (octets) Lowell
apCntsvcCntName.9.77.105.100.100.108.101.115.101.120.9.108.105.116.116.108.1
01.116.111.110.8.119.101.115.116.102.111.114.100 (octets) littleton

Vip address not responding

I am testing our new CSS 11501s (which are going to replace our old LocalDirectors), and have setup a little lab like so:
Test PC
|
Router
|
| e5
CSS
e1 e2
| |
Srv1 Srv2
I cannot seem to get the configured vip addreses to work, however I can connect to the actual webserver ips on port 80 (which are directly connected to ports 1 & 2). Any idea why it is not working?
Here is my config:
interface e1
bridge vlan 100
interface e2
bridge vlan 200
interface e5
trunk
vlan 100
vlan 200
circuit VLAN100
ip address 10.10.100.100 255.255.255.0
circuit VLAN200
ip address 10.10.200.100 255.255.255.0
service www_eth0
ip address 10.10.100.2
keepalive type http
active
service www_eth1
ip address 10.10.200.2
keepalive type http
active
owner webowner
content eth0
port 80
protocol tcp
add service www_eth0
vip address 10.10.100.25
active
content eth1
protocol tcp
port 80
add service www_eth1
vip address 10.10.200.25
active

I think you get no response from the vip because you have no default route on the CSS pointing at your router.
If you do have a default route, capture a 'show summary' and 'sho service summary' to verify that the content rules are active.
Regards,
Gilles.

VIP address issues

Hi Gilles
Could you please help with the following?
If I have defined 2 VIP addresses and each of the VIP address has the same set of real servers then will there be a problem. This is specific to DNS servers.
Your help would be of great help
Thank you
Regards
Aiyappa

There might be an issue.
For UDP traffic you have to configure a group to nat the server response back into the vip address.
If the servers are the same for both vip, on the way back to the client the CSS will not know which vip address to use - a server can only be in one group at a time.
A solution could be to do client nat. This might force the CSS to remember the vip address on the way back. Not sure as I did not try it.
Gilles.

Combining multiple VIP addresses in Mail

Is there a way to combine multiple email addresses under the same VIP in Mountain lion's Mail? I have 4 or 5 email addresses for a contact and as such have 5 different VIP inboxes for this person when one would be perfect.
Any help would be great.
thanks!

This solved it for me: before, two VIPs with same name, but was same person with two different email addresses; added both email addresses to that person in Contacts, restarted mail, and voila now one entry in VIP list for this guy. Thanks ddarby08!

Olsnode does not show VIP address

Why is that i dont see the VIP for one of the node here. Any thoughts...This is GI 11.2.0.1
solb:oracle$ olsnodes -n -t -i
solc 3 solc-vip.xxx.org Pinned
solb 4 <none> Pinned
I get the same output from both the nodes.

Hi,
Put here output of :
srvctl config nodeapps
cluvfy comp nodeapp -n <node_list>
cluvfy comp nodecon -n <node_list>
oifcfg getif -globalTo post output of commands above use formatting ({ code}) option of forum described in FAQ (http://forums.oracle.com/forums/help.jspa)
Regards,
Levi Pereira

How to Restrict Oracle VIP address Movement between DB servers?

I installed the Oracle 11.2 RAC on 4 server setup.Its a 4 server Grid SETUP and out of 4 servers only servers are runnning the Database Instances.
The did this installation to use ACFS feature.
Now i need to map the Public IP with Oracle Database ip address. so from Internet limited user can connect through oracle tns and listener entry.
If i am mapping with database static ip, then will face service outage in case of that Oracle Instance server down.
If i am mapping with Oracle Virtual IP address, then this Virtual IP is shifting anyone of the three server. So sometimes it can shift to Grid server where Database is not running.
How Can I restrict the Database Virtual IP movement between Database servers only ?
-sumit

So you have a 4 node RAC, but with only 3 nodes running the database ?
I am confused about why the 4th node is part of the RAC then ?
Please post more info about how things are configured

Maximum number for content rules or VIP address ?

Are there some limitation on CSS11500 regarding number of VIP that I could enable or content rule ?
Thanks in advance
Marco

I don't think there is any software limitation.
so, the limit will be the size of the config in memory and the performance in terms of traffic coming to the box.
One software limit is the number of services per content rule which is 64.
Gilles.

How to create more than one VIP use the same IP address and different port(e.g. 80 and 443)

Hi,
I use SCVMM LB Provider deploy network. I want to create 2 VIP use the same virtual IP but use the different port.
for example:   VIP address 1.1.1.123   use port 80 for HTTP   and port 443 for HTTPS
However,
the following problems encountered, when I create the second VIP.
PS C:\Windows\system32> New-SCLoadBalancerVIP -Name "vip11" -LoadBalancer $LB -IPAddress "1.1.1.123" -LoadBalancerVIPTemplate $VIPTemplate1 -LoadBalancerProtocol $Protocol1 -LoadBalancerHealthMonitor $HM1
New-SCLoadBalancerVIP : A virtual IP (VIP) address with the specified name (vip11) or
address (1.1.1.123) already exists on the load balancer (xxx). (Error ID: 13691)
Specify a different name or IP address and try again.
To restart the job, run the following command:
PS> Restart-Job -Job (Get-VMMServer localhost | Get-Job | where { $_.ID -eq
"{b41a77eb-ae0b-490a-8948-662a529b1d8c}"})
At line:1 char:1
+ New-SCLoadBalancerVIP -Name "vip11" -LoadBalancer $LB -IPAddress "1.1.1.123" -Lo ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ReadError: (:) [New-SCLoadBalancerVIP], CarmineException
    + FullyQualifiedErrorId : 13691,Microsoft.SystemCenter.VirtualMachineManager.Cmdlets.Ne
   wSCLoadBalancerVIPCmdlet
PS C:\Windows\system32>
any suggestions ?
Thank you in advance !

I really don't know DDE very well. It is usually recommended that you switch to using ActiveX. You may not be correctly configuring the netDDE server. There is an example in the reource library that shows how to do this. You may also want to look at the DDE advise examples that came with LabVIEW 5.1 and earlier.

VIP address

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