For 4 node RAC database on Exadata x3-2, how many scan IP I should assign?

We want to build a 4 node RAC 11gr23 on exadata x3-2. Oracle only recommend 3 ip for scan listener. by previous observation of non-exadata RAC, seems each node will spread randomly one Scan Ip address. So if we assign 3 ip to one scan listener, how that will work on a 4-node RAC?
Thanks

You're welcome
by Load balancing
Oracle RAC databases increase load balancing by using the single client access name (SCAN) for the cluster to balance connections among all instances in a cluster database. SCAN also adds location independence for the databases, so that client configuration does not have to depend on which nodes are running a particular database or database instance.
http://docs.oracle.com/cd/E11882_01/install.112/e48195/undrstnd.htm#RIWIN607
Based on the environment, the following actions occur when you use SCAN to connect to an Oracle RAC database using a service name. The numbered actions correspond to the arrows shown in Figure 7-1.
http://docs.oracle.com/cd/E11882_01/install.112/e48195/undrstnd.htm#CIHIBEIH
Regards

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Hi. all.
I created a job , which runs an external script, by using dbms_scheduler.
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The external script exists at a only one Node(Node 1).
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Hi,
In the upcoming 11g release there is an easy solution for this - a new attribute instance_id for a job.
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Dear Professionals,
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**************** Current Configuration ****************
INSTANCE NODE DBCONTROL_UPLOAD_HOST
SITB1 ccman_rac1 ccman_rac2
SITB2 ccman_rac2 ccman_rac2
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Hi,
indeed i catalog all transfered archive logs in front of the recover process.
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Hth
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NIC ROUTER requirement for 10g RAC database

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sayantan chakraborty wrote:
is RDMA and infiband ar same??Infiniband is a switched fabric layer for high speed communication. RDMA is a protocol for "+remote direct memory access+".
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3 node RAC database need to build standby database

Respected DBA's
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thanks

See the [ MAA Home page|http://www.oracle.com/technology/deploy/availability/htdocs/maa.htm#Database] for " [MAA 10g Setup Guide: Creating a Single Instance Physical Standby Database for a RAC Primary Database|http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10g_RACPrimarySingleInstancePhysicalStandby.pdf] "

How many SCAN listners for 2 node rac ?

Hi,
Oracle recommends min 3 SCAN listeners , but what if I've got 2 node RAC ? :)
Regards
GregG

Hi Friend
About SCAN :
1. The single client access name (SCAN) is the address used by all clients connecting to the cluster.
2. The SCAN name is a domain name registered to three IP addresses, either in the domain name service (DNS) or the Grid Naming Service (GNS).
3. The SCAN name eliminates the need to change clients when nodes are added to or removed from the cluster.
4. Clients using SCAN names can also access the cluster using EZCONNECT.
5. The Single Client Access Name (SCAN) is a domain name that resolves to all the addresses allocated for the SCAN name.
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*1. Cluster Name :*
*2. Scan Name :*
*3. Scan Port :*
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LaserSoft

Enable Archivelog Mode On 2 Node RAC DATABASE

hi,
We are having 2 Node Rac 10g Database Installed on Windows.
Currently the Database is in Non Archivelog Mode.
I want to convert it to Archivelog Mode.
I come to know the steps to convert cluster database to Archivelog mode.
i.e.
set archive parameters like Disk Location and Archivelog File format.
then Convert the database in Exclusive Mode
ALTER SYSTEM SET cluster_database=FALSE SCOPE=spfile;
then
C:\> srvctl stop database -d <Global_DB_SID>
then enable Archivelog Mode.
SQL> STARTUP MOUNT;
SQL> ARCHIVE LOG START;
SQL> ALTER DATABASE ARCHIVELOG;
SQL> ALTER DATABASE SET cluster_database=TRUE SCOPE=spfile;
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But I am confuse with Do i need to RUN this commands in both the nodes seperatly or only on any one node.
Please Reply,

comments embeddedf
Node 1: OSERP1
Log on to OSERP1 Server
C:\> sqlplus sys/oracle@racdb2 as sysdba
SQL> ALTER SYSTEM SET log_archive_format='arch_%t_%s.arc' SCOPE=spfile ; -- this needs to be database wide
SQL > ALTER SYSTEM SET log_archive_dest_1='location=\\OSERP1\archive$\ERP1 ' SCOPE=spfile sid ='ERP1'; -- required quotes added
-- not required
SQL> ALTER SYSTEM SET cluster_database=FALSE SCOPE=spfile;
not required to connect to other node
-- not required
SQL> ALTER SYSTEM SET log_archive_format='arch_%t_%s.arc' SCOPE=spfile sid =ERP2;
SQL > ALTER SYSTEM SET log_archive_dest_1='location=\\OSERP2\archive$\ERP2 ' SCOPE=spfile sid ='ERP2'; -- quotes added
-- not required, and database wide setting
SQL> ALTER SYSTEM SET cluster_database=FALSE SCOPE=spfile;
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-- database has to be stopped first, if you stick to switching it to a non-cluster database
C:\> set ORACLE_SID=<local_instance_id>
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SQL> ALTER DATABASE SET cluster_database=TRUE SCOPE=spfile;
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ERP
ERP1
ERP2
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SQL> CREATE CONTROLFILE set DATABASE "SBLS" RESETLOGS NOARCHIVELOG
2 MAXLOGFILES 192
3 MAXLOGMEMBERS 3
4 MAXDATAFILES 1024
5 MAXINSTANCES 32
6 MAXLOGHISTORY 292
7 DATAFILE
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9 '+SBLDATA/SBLTST/DATAFILE/sysaux.dbf'
10 '+SBLDATA/SBLTST/DATAFILE/undotbs1.dbf'
11 '+SBLDATA/SBLTST/DATAFILE/undotbs2.dbf'
12 '+SBLDATA/SBLTST/DATAFILE/users.dbf'
13 '+SBLDATA/SBLTST/DATAFILE/sbl_data.dbf'
14 '+SBLDATA/SBLTST/DATAFILE/sbl_idx.dbf';
'+SBLDATA/SBLTST/DATAFILE/sysaux.dbf'
ERROR at line 9:
ORA-01967: invalid option for CREATE CONTROLFILE
Please advice.

ASMCMD> pwd
+sblDATA/SBLTST/DATAFILE
ASMCMD> ls -l
Type Redund Striped Time Sys Name
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y SBL_DATA.258.815440497
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y SBL_IDX.259.815441389
DATAFILE UNPROT COARSE DEC 26 11:00:00 Y SYSAUX.272.802440861
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y SYSAUX.282.804173239
DATAFILE UNPROT COARSE MAY 29 13:00:00 Y SYSTEM.262.804173239
DATAFILE UNPROT COARSE DEC 26 11:00:00 Y SYSTEM.271.802440859
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y UNDOTBS1.270.804173239
DATAFILE UNPROT COARSE DEC 26 11:00:00 Y UNDOTBS1.273.802440861
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y UNDOTBS2.265.804173409
DATAFILE UNPROT COARSE DEC 26 11:00:00 Y UNDOTBS2.279.802441035
DATAFILE UNPROT COARSE MAY 29 14:00:00 Y USERS.264.804173239
DATAFILE UNPROT COARSE DEC 26 11:00:00 Y USERS.274.802440861
N sbl_data.dbf => +SBLDATA/SBLTST/DATAFILE/SBL_DATA.258.815440497
N sbl_idx.dbf => +SBLDATA/SBLTST/DATAFILE/SBL_IDX.259.815441389

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Sir I am using oracle 10.2.0.1 and created 3 node cluster setup on.OS i am using linux 4
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I also dont't know all the details about this but I'll try to explain what I know. Setting cluster_database to false in a rac environment is usually done when you need to mount the database from one instance exclusively. This is still needed when you upgrade the catalog, for example during release update (from 10.2.0.1 to 10.2.0.4 for example). Now with switching archivelog mode someone at oracle must have discovered that it is sufficient when the database is mounted by only one instance and you can actually save one step.
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Dears,,
We have two databases (Primary & Standby), each database has two instances
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Hello
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Jim.....I am confused about this MXF OP1a "self contained" format. I took my test 16 minute portion of my main sequence as I have above with the other formats and exported to this format. It said it was going to "4:2:2 50". Which sounds great. Better than it was shot....with the main Sony PMW 320 recording at 35mbs 4:2:0. The encode was screaming fast, only about 5 minutes. And the file was the smallest yet....only 7.31gb. Great!!
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Again, this is all new territory for me but I'm doing good and making great progress thanks to everyone's help.
Thanks much
Ron
12.Jim Simon,
Oct 27, 2012 11:15 PM   in reply to ronfab
Report
Can I then use the Dynamic Link and auto setting that Ann is talking about
You can, yes. Personally I prefer not to. The transcodes get saved to the folder and it makes archiving more cumbersome.
Projects don't have 'settings' any more. You can have any number of dfferent sequences in the same project. But yes, you'd not change the sequence settings. MXF OP1a would be an export option for archiving.

For 4 node RAC database on Exadata x3-2, how many scan IP I should assign?

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