Oracle RAC public network bandwidth requirement

Is there any thumb rule on what should be bandwidth for the public network for a type of workload?

user458367 wrote:
Is there any thumb rule on what should be bandwidth for the public network for a type of workload?No. As the workload could mean sending 1KB instruction (SQL) from the client to the cluster, cause a 100 PQs to be created, cluster resources to be maxed out, and a 1KB result (aggregated answer) to be returned to the client.
What was the workload impact on the network? 2KB. What was the workload impact on the cluster? Significant.
Network management is also a lot more than simplistically dealing with "+workloads+". It is a shared medium. It is routed. It can implement differentiated services/quality of service. It is managed entirely separately from an application or o/s or database perspective. There are numerous other factors that need to be considered than just the perspective of what the "workload" is.

Similar Messages

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!!!!

Network bandwidth requirement between MDM server and MDM Clients

The MDM Sizing document for 5.5 states that 'a network connection between MDM Servers and MDM clients should be at least 100 Mbps'. Is this true? This would preclude MDM being offered as a hosted service. I'm interested in MDM Catalogue for SRM, so the catalogue content managers would need the import and data manager clients.

One factor I noticed, in our project...
I would recommend a 4 GB RAM for someone who is working with Import Manager.
As far as the Network connection goes, I am not sure what the requirements are.
We have faced several issues when the end user's laptop are less than 2 GB.
If someone is working with Image Manager, then I would recommend 4GB.
For bulk imports, I would use Import Server.

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 RAC scalability(does it linearly scalable upto 20-30 nodes)

We are looking datastorage solution as Oracle -RAC for following performance requirement
Application is generating Resources which we want to store in database and provide searching on this resources.
Resource have 2 part one is data and another one is meta
Data contains textual/binray data like txt/html/doc/excel/pdf/image file etc
meta contains 30-40 different property telling something about data.
Average resource size is 10K
Insertion speed required for such resource (Data + Meta ) 2Gbps(30K Resource/Second )
We want indexing also on data and meta.
We used single oracle database and created resource table which has 40 column for meta property and one column of blob type for data.
Performance achieved is 100Mbps insertion speed (on normal machine)
Now to go to 2Gbps we are thinking to use Oracle RAC to scale it up to 2Gbps Insertion speed.May be 20 Node is required to scale it upto 2Gbps.
Now my question is does Oracle RAC provide close to liener scalability upto 20-30 nodes or not.
Key requirement is to achieve insertion speed upto 2Gbps
High availability of oracle rac can be added advantage for us but key concern here is scalability not fault tolerance.

> Now we are not using oracle partitioning because it
is slow when we define domain index (even index is
local and it is not sync real time ,index maintaines
is off) but it maintains pending queue and which
slows down insertion process.
Hmm.. I'm using partitioning extensively for mass parallel inserts and it is a lot cleaner than individual tables (requiring dynamic SQL), and I have not seen any performance issues.
Can you elaborate on what issues you have seen?
> Our main and key concern is to achieve insertion
speed of 2Gbps initialy and should be scalable upto
10Gbbps.
May I ask what data you are collecting? This volume sounds a bit extreme - is something like collecting/sniffing UDP/TCP packets?
> 1.If we have say I/O and network bandwidth available
then does oracle RAC will be capable to consume this
available I/O and network bandwidth by adding more
nodes.
Yes. Remember that each cluster node has its own set of local platform resources - including a pipe to the shared storage (such as a I/O fibre channel).
What will cause an impact? Anything that will impact a single insert process will also impact that process across a cluster. E.g. two processes attempting to insert a row with the same PK - only one can succeed and thus one will be blocked by another. Bitmap indexing as a lock on a bitmap "slot" locks the index data for a number of rows - any of which can currently be updated by other processes. Etc.
How is this resolved in a cluster? As the processes are not local to the same platform, IPC cannot be used. Thus it means the Interconnect has to be used. This will be slower than IPC.
> 2.We also heard from HP that Interconnect of node
will be botteleneck for us but my question is if we
look at above scenario where only insertion and
searching is there and no updation is there in system
then will RAC Interconnect become botteleneck just
for hearbeat messanging.
The Interconnect need not be a bottleneck. Besides, the Interconnect is a fundamental cog in the share-everything cluster machine. It is not a "Bad Thing". So I question what HP is saying - for me to accept such advice, it needs to be backed up with hard technical facts.
If Interconnect is such an issue according to HP, just what do they recommend you use to scale your system with? Let me guess - some very expensive and very complex HP product? A superdome perhaps?
> 3.Indexing time is much more even we create index for
one hour data at one shot, can we dedicate few nodes
in RAC just for indexing.
That is what I'm doing - running up to a 100+ PQ process to do the index builds and rebuilds.
> 4.When i use Create table as select command to
transfer same amount of data from one table to
another table then it takes only 30 seconds and when
i use direct path uploading then it takes 3 minute,
Make sure that you're performance comparisons are valid. What do you imply with "direct path uploading"?
Remember that CTAS is disk-to-disk I/O via the SGA buffer cache. There is no "client side" involved. Nothing external. Not even a PGA buffer area. No pushing data from a client process via IPC to an Oracle server process.
If your benchmark includes pushing data from a client, even from a PL/SQL process, that will be slower than a CTAS - always.
When dealing with such large volumes, the "traditional RDBMS" approach need to be carefully considered. Every single constraint, every single index, every single trigger, results in a tiny overhead that becomes a very huge overhead given the data volumes.
Data management also plays a crucial role. Unless you can manage the data, you cannot effectively insert such huge volumes, process those volumes and query those volumes.
I see RAC and partitioning and PL/SQL server side processing as crucial ingredients to make this work.

RAC - pulling the public network connector

Hallo,
would be really good to get an answer for this case:
What is the expected behaviour of the instance if i pull out the network connector of the public network.
In our case the instance of that node is reacting with an automatic shutdown abort.
Is that ok ? We want to have a running AS on top of the RAC so if there are network problems the whole AS would crash if the instance disappears in the back.
Thx for clarification
Jochen

The Oracle Clusterware requires that each node be connected to a private network by way of a private interconnect.
The private interconnect that Oracle Clusterware requires is a separate network that you configure between the cluster nodes. This interconnect, which is required by RAC, can be the same network that the clusterware uses, but the interconnect should not be accessible by nodes that are not part of the cluster.
So unless you do not use your public network as part of the private network (which is a contradiction) and both networks use the same protocols you will not have Oracle Clusterware use the "public/private" network link. It was just not registered with Oracle Clusterware during installation.
Correct me if I am wrong ...

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

Oracle RAC and crossover cable for private network

Hi,
I have the following configuration: two database servers, each has four network cards, two for public network and two for private, cluster network. Each public card has own IP-address and both have virtual IP-address, defined in operation system (SLES-9) for redundancy. Because I have only two machines in the cluster I want to connect the two machines for private with crossover cable without switch. For redundancy I want to make two connections between machines. Is it at all possible? How should I defined all network interfaces and what should be included in /etc/hosts for properly work of Oracle cluster?
Best Regards,
Jacek

Hi,
You can build a RAC witch CROSSOVER, but the Oracle no homolog.
As you have 4 cards, 2 to public (redundancy) and 2 to interconnect (redundancy) you need of a software to to make a TEAM, and create a card virtual that will have a IP address.
Eder

VIP and Public Network on Extended Rac

Hi Everybody
I want to install Oracle Extended Rac on two Sites which is 25Km far and the spec is :
Oracle 11.1.0.6
HP PA-RISC server
EVA Storage
my problem is
each of my sites has different subnet for public network so for VIP failover there is a problem.
how can solve this problem.
can we have two site with on subnet? how?
I have this problem eith Interconnect too.
thanks anyway
Hashem

hi
mind oifcfg tool
http://www.databasejournal.com/features/oracle/article.php/3651826/Oracle-RAC-Administration---Part-12-RAC-Essentials.htm
and
http://download.oracle.com/docs/cd/B28359_01/rac.111/b28255/oifcfg.htm

Network config requirement fails when installing Oracle 11gR1 on Windows XP

Hi
I am trying to install 11g on Windows XP Professional, I am getting
checking Network Configuration requirements ...
Check complete. The overall result of this check is: Not executed <<<<
Recommendation: Oracle supports installations on systems with DHCP-assigned IP addresses; However, before you can do this, you must configure the Microsoft LoopBack Adapter to be the primary network adapter on the system. See the Installation Guide for more details on installing the software on systems configured with DHCP.
========================================================
In the installation log I can see:
Checking DetectIfDHCPAssignedIP
INFO: Checking DetectIfDHCPAssignedIP
This is a prerequisite condition to test whether the primary IP address of the system is DHCP-assiged or static.
INFO: Detecting the IP.....:127.0.0.1
INFO: Checking the network interface display name.... :MS TCP Loopback interface
INFO: Checking the network reference name..... :lo
INFO: Checking the platform .......912
INFO: Check complete. The overall result of this check is: Not executed <<<<
====================================================================
I installed Loop back adaptor and gave IP: 10.10.10.10 and subnet mask as : 255.255.255.0 .I added the entry 10.10.10.10 locahost in host file as well.
Could anybody tell me what is the problem?
Thanks
Praveena

I am able to resolve this by all network connections except Loop Adaptor connection and changing my computer name from LOCALHOST to HOME.

Oracle 10g Installtion error Network Configuration requirements ... failed

Checking Network Configuration requirements ...
Check complete. The overall result of this check is: Failed <<<<
Problem: The install has detected that the primary IP address of the system is DHCP-assigned.
Recommendation: Oracle supports installations on systems with DHCP-assigned IP addresses; However, before you can do this, you must configure the Microsoft LoopBack Adapter to be the primary network adapter on the system. See the Installation Guide for more details on installing the software on systems configured with DHCP.

Are you installing Oracle 10G R2? If this is the case then for DHCP network environments, you need to create a Microsoft loop back adapter.
Microsoft Loopback Adapter creation:
===========================
Step 1: Programs -> control panel -> Add Hardware.
Step 2: In the Add Hardware wizard. Click 'Next' and select 'Yes, I have already connected the hardware'. option and click on 'Next'.
Step 3: Select the last option 'Add a new hardware device' from the 'Installed hardware' window and click on 'Next'.
Step 4: Select the last option 'Install hardware that I manually select from the list (Advanced) and click on 'Next'.
Step 5: Select 'Network adapters' in 'Common hardware types' list and click on 'Next'.
Step 6: Where you can see 'Microsoft loopback adapter' on the right hand side of the frame.
Step 7: proceed with all default installation and then try installing Oracle.
I hope this will suffice.
Thanks
Venugopal

Channel Bonding? Oracle RAC with multiple redundant network

We are planning on setting up on Oracle RAC 10g on Linux.
We have redundant switches, so I would like to set up the network to have some version of network redundancy.
Under windows, it is called 'teaming'. Linux is 'channel-bonding'
I just want to make sure if I setup the channel-bonded interfaces, it will be supported with RAC. Has anyone done this before??
-Andy

we are running our RAC on NIC bonding. Although we need to do some more testing to be real sure as to the functionality of the bond.
Metalink Note:298891.1 would be a good place to start.
hth,
-S

Oracle RAC requires ODP?

I am starting a new project with the following scenario: .Net 2.0 web application accessing Oracle RAC (64 bits) using Data Access Application Block. I would like to know if it is required to use ODP to access Oracle RAC or Microsoft Oracle Data Provider could be used. Another questions: Do ODP supports .Net 2.0? Is it possible to configure ODP in Data Access Application Block?
Any help is appreciated.
Luciana

Hi,
ODP.NET does not currently support ADO2.0. There should be a beta coming up sometime soon for it, and there are other threads you can check to get info to get in on the beta if you want to do that.
A lot of the RAC functionality is handled by the underlying client, so both ODP's should be able to take advantage of it, at least in some sense. However, as of 10.2, Oracle's ODP has additional functionality to be able to get notification when RAC events occur.
I dont know much about DAAP, but believe there are other threads where folks have converted it to Oracle code.
Hope that helps,
Greg

Oracle RAC nodeapp 启动报错-vip:IP:192.168.2.200 is already up in the network

Linux redhat 5 Oracle RAC 10.2.0.5环境
启动nodeapp报错如下：
[oracle@rac1 ~]$ srvctl start nodeapps -n rac1
CRS-0210: Could not find resource ora.rac1.gsd.
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)
crsd.log部分日志如下：
2012-11-21 20:10:16.831: [ CRSRES][2717907856]0startRunnable: setting CLI values
2012-11-21 20:10:16.967: [ CRSRES][2717907856]0Attempting to start `ora.rac1.vip` on member `rac1`
2012-11-21 20:10:44.246: [ CRSAPP][2717907856]0StartResource error for ora.rac1.vip error code = 1
2012-11-21 20:10:47.007: [ CRSRES][2717907856]0Start of `ora.rac1.vip` on member `rac1` failed.
2012-11-21 20:10:47.529: [ CRSRES][2717907856]0Attempting to start `ora.rac1.vip` on member `rac2`
2012-11-21 20:11:18.649: [ CRSRES][2717907856]0Start of `ora.rac1.vip` on member `rac2` failed.
2012-11-21 20:11:18.897: [ CRSRES][2717907856]0CRS-1006: No more members to consider
2012-11-21 20:11:20.986: [ CRSRES][2717907856]0startRunnable: setting CLI values
2012-11-21 20:11:21.190: [ CRSRES][2717907856]0Attempting to start `ora.rac1.vip` on member `rac1`
2012-11-21 20:11:48.846: [ CRSAPP][2717907856]0StartResource error for ora.rac1.vip error code = 1
2012-11-21 20:11:51.203: [ CRSRES][2717907856]0Start of `ora.rac1.vip` on member `rac1` failed.
2012-11-21 20:11:51.492: [ CRSRES][2717907856]0rac2 : CRS-1019: Resource ora.rac1.LISTENER_RAC1.lsnr (application) cannot run on rac2
请问如何进一步排查“rac1:ora.rac1.vip:IP:192.168.2.200 is already up in the network (host=rac1)”问题？感谢

ping信息：
[oracle@rac1 ~]$ ping 192.168.2.200
PING 192.168.2.200 (192.168.2.200) 56(84) bytes of data.
64 bytes from 192.168.2.200: icmp_seq=1 ttl=64 time=0.043 ms
64 bytes from 192.168.2.200: icmp_seq=2 ttl=64 time=0.126 ms
64 bytes from 192.168.2.200: icmp_seq=3 ttl=64 time=0.059 ms
64 bytes from 192.168.2.200: icmp_seq=4 ttl=64 time=0.158 ms
64 bytes from 192.168.2.200: icmp_seq=5 ttl=64 time=0.643 ms
64 bytes from 192.168.2.200: icmp_seq=6 ttl=64 time=0.034 ms
64 bytes from 192.168.2.200: icmp_seq=7 ttl=64 time=0.046 ms
64 bytes from 192.168.2.200: icmp_seq=8 ttl=64 time=0.043 ms
64 bytes from 192.168.2.200: icmp_seq=9 ttl=64 time=0.048 ms
64 bytes from 192.168.2.200: icmp_seq=10 ttl=64 time=0.031 ms
telnet信息
[oracle@rac1 ~]$ telnet 192.168.2.200
Trying 192.168.2.200...
Connected to 192.168.2.200.
Escape character is '^]'.
Red Hat Enterprise Linux Server release 5 (Tikanga)
Kernel 2.6.18-8.el5xen on an i686
login:
ssh信息：
[oracle@rac1 ~]$ ssh 192.168.2.200
Last login: Sun Nov 18 13:37:10 2012 from rac2-vip
ifconfig -a信息：
[root@rac1 ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:0C:29:B6:CE:6B
inet addr:192.168.2.100 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:feb6:ce6b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:142396 errors:0 dropped:0 overruns:0 frame:0
TX packets:172561 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:41403126 (39.4 MiB) TX bytes:96009307 (91.5 MiB)
Interrupt:18 Base address:0x1480
eth1 Link encap:Ethernet HWaddr 00:0C:29:B6:CE:75
inet addr:192.168.2.200 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:feb6:ce75/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:14082 errors:0 dropped:0 overruns:0 frame:0
TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9789756 (9.3 MiB) TX bytes:1434 (1.4 KiB)
Interrupt:19 Base address:0x1800
eth2 Link encap:Ethernet HWaddr 00:0C:29:B6:CE:7F
inet addr:192.168.3.100 Bcast:192.168.3.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:feb6:ce7f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12665 errors:0 dropped:0 overruns:0 frame:0
TX packets:32728 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6590271 (6.2 MiB) TX bytes:28437643 (27.1 MiB)
Interrupt:16 Base address:0x1880
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:30893 errors:0 dropped:0 overruns:0 frame:0
TX packets:30893 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9402131 (8.9 MiB) TX bytes:9402131 (8.9 MiB)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

Oracle RAC / Logical Data Guard causing network problems on VMware

We have VMWare 5.0 cluster across the 12 blades (6 per chassis) running a mixture of Red Hat and Windows 2008 R2 vms. The Red Hat boxes are two times two node Oracle RAC (primary and secondary), also apache web servers and jboss application servers. The Windows servers are for AV/DC/Management/Monitoring.
The problem is that intermittent network connectivity to random Windows and Red Hat boxes occur when the Oracle RAC builds up archive logs and then ships / applies them to the secondary nodes, between ESX nodes either on different blades in the same chassis or across the chassis and even when all RAC nodes are on the same ESX host.
We are using NFS, Oracle 11g and Red Hat 6.2.
Sorry if this info is a bit vague, im not an Oracle expert! :-)
thanks,
Dave

Hi,
1.) The calculation for Standby RedoLogs is:
(Max Number of Logfiles per thread (Instance) +1) * Max Number of Threads (Instances))
So if you have 4 Redo Log Groups on your primary (which is 2 Redo Log Groups per Instance), then it ends up:
(2 +1) * 2 = 6
So actually you will only need 6 standby redo logs, not 8. But 2 more don't harm.
Your primary will need exactly the same number (6 or in your case 8). Which will be 3 per thread/instance or in your case 4.
2.) The SID List in the listener.ora is a listing of SIDs the Listener is listening on. It is not the listener name.
Hence it is not "lsnrctl guard_dgmgrl start" but only "lsnrctl LISTENER start", whereas the LISTENER is the default and "lsnrctl start" would be sufficient.
However since this is grid infrastructure with the listener running out of ASM home, be sure to have set your environment to GI Home not to DB_HOME for the listener.ora entries, but to DB_HOME for the tnsnames.ora entries necessary for data guard.
And since listener is running under clusterware you should use "srvctl stop listener" and start.
Last but not least the SID entries for dataguard have to use DGMGRL not dgmgrl.
3.) Here is the whitepaper you are looking for:
www.oracle.com/goto/maa
Also for client failover best practices.
(Here the direct link to the RAC whitepaper):
http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimarysingleinstance-131970.pdf
However since this is 10g you should combine this with the 11g RAC standy paper (e.g. SCAN Listener setup).
Sebastian

Oracle RAC public network bandwidth requirement

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