Multiple databases/instances on 4-node RAC Cluster including Physical Stand

OS: Windows 2003 Server R2 X64
DB: 10.2.0.4
Virtualization: NONE
Node Configuration: x64 architecture - 4-Socket Quad-Core (16 CPUs)
Node Memory: 128GB RAM
We are planning the following on the above-mentioned 4-node RAC cluster:
Node 1: DB1 with instanceDB11 (Active-Active: Load-balancing & Failover)
Node 2: DB1 with instanceDB12 (Active-Active: Load-balancing & Failover)
Node 3: DB1 with instanceDB13 (Active-Passive: Failover only) + DB2 with instanceDB21 (Active-Active: Load-balancing & Failover) + DB3 with instanceDB31 (Active-Active: Load-balancing & Failover) + DB4 with instance41 (Active-Active: Load-balancing & Failover)
Node 4: DB1 with instanceDB14 (Active-Passive: Failover only) + DB2 with instanceDB22 (Active-Active: Load-balancing & Failover) + DB3 with instanceDB32 (Active-Active: Load-balancing & Failover) + DB4 with instance42 (Active-Active: Load-balancing & Failover)
Note: DB1 will be the physical primary PROD OLTP database and will be open in READ-WRITE mode 24x7x365.
Note: DB2 will be a Physical Standby of DB1 and will be open in Read-Only mode for reporting purposes during the day-time, except for 3 hours at night when it will apply the logs.
Note: DB3 will be a Physical Standby of a remote database DB4 (not part of this cluster) and will be mounted in Managed Recovery mode for automatic failover/switchover purposes.
Note: DB4 will be the physical primary Data Warehouse DB.
Note: Going to 11g is NOT an option.
Note: Data Guard broker will be used across the board.
Please answer/advise of the following:
1. Is the above configuration supported and why so? If not, what are the alternatives?
2. Is the above configuration recommended and why so? If not, what are the recommended alternatives?

Hi,
As far as i understand, there's nothing wrong in configuration except you need to consider below points while implementing final design.
1. No of CPU on each servers
2. Memory on each servers
3. If you've RAC physical standby then apply(MRP0) will run on only one instance.
4. Since you are configuring physical standby for on 3rd and 4th nodes of DB1 4 node cluster where DB13 and DB14 instances are used only for failver, if you've a disaster at data center or power failure in entire data center, you are losing both primary and secondary with an assumption that your primary and physical standby reside in same data center so it may not be highly available architecture. If you are going to use extended RAC for this configuration then it makes sense where Node 1 and Node 2 will reside in Datacenter A and Node 3 ,4 will reside in Datacenter B.
Thanks,
Keyur

Similar Messages

Theoretical question on having "stand by" instance on 4 node RAC cluster.

We have been having discussions on how we can improve the overall stability and performance of our RAC cluster. Currently we are running multiple databases on a 2 node cluster. The idea is that we will add two more nodes to the cluster and then spread the instances across the 4 nodes but only have two active and 1 as a standby in the event of node failure.
In other words:
Node1, Node2, and Node3 would run DB1
Node 4 Node3 and Node2 would run DB2
Additionally DB1_Instance3 would be shutdown on Node3 and only started if Node1 or 2 failed.
This would be the same for DB2 where DB2_Instance3 on Node2 would only be started if Node3 or Node4 failed.
Underneath them all would be the same ASM database shared for all 4 nodes.
Has anyone seen such a configuration? Is anyone aware of a white paper that discusses it.

the parameter active_instance_count is a 9i parameter and should only be set if you want to run RAC with a 2 node cluster - one instance active (all users connected here) and the second instance up but no one actively using it. IF instance one goes away, all work is move to instance 2. This is hot failover .
If you are adding a new instance to a rac database, you are recommended to use DBCA or EM to add the instance. If you do not want to have users connected to the instance all the time, you can either leave it running but do not enable any services on it until you need it or stop the instance with srvctl stop instance. The cluster will not try to restart the instance automatically.
The services option, when you create a service, you define which instances you wish it to run on. You can dynamically change where it runs. For the end user, they just connect to the service, the listener directs the connection to the least loaded instance providing the service at connect time. See the workload management with RAC 10g white paper on otn (otn.oracle.com/rac) or Chapter 6 of admin & deploy guide

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Do I have to use SCAN listener for all databases?
When installing the 3 database, I get ORA-12537: TNS connection closed error.
ENV: 11gR2 2-node RH5.x
Thanks!

I have setup SCAN using 3 IP addresses.
Do I have to use SCAN listener for all databases?These 3 scan ip will work for youe all database running under this cluster setup.
you may also use VIP to make connection like 10g.
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How to Troubleshoot Connectivity Issue with 11gR2 SCAN Name [ID 975457.1]

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Application is using the following connection string.
jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = PQ2-PS-db-01-vip)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = PQ2-PS-db-02-vip)(PORT = 1521)) (LOAD_BALANCE = yes) (CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = PSDBSRV1)(FAILOVER_MODE =(TYPE = SELECT)(METHOD = BASIC)(RETRIES = 180)(DELAY = 5))))
--MM

Automatic restart of services on a 1 node rac cluster with Clusterware

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Thanks,
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srvctl enable service -d DBThanks for your reply M. Nauman. I researched that command and found we do have it enabled and that it only works if the database instance was previously taken down. Since the database does not go down on an Archiver Hung error as we are using FRA with an alt location, this never kicks in and brings up the service. What we are looking for something that will trigger off of when the archive logs error and switch from FRA(Flash Recovery Area) to our Alternate disk location. Or more presicely, when it goes back to a Valid status(on the FRA - after we've run an archive log backup to clear it).
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Thanks,
Gib
Message was edited by:
Gib2008
Message was edited by:
Gib2008

Can there be multiple ASM instances on single node?

Hi,
Can there be multiple ASM instances on single node?
This one says No : http://www.freelists.org/archives/oracle-l/02-2008/msg00317.html
And This one says Yes : http://www.databasejournal.com/features/oracle/article.php/3571371
Thanks in advance.
Thanks,
Harsha
Edited by: user498756 on Sep 11, 2008 2:23 AM

...that document doesnt say you cannot have multiple ASM instances on a node. It says "...ASM, +you only need one ASM+ instance for that computer, to manage the two database instances that use ASM."
The fact that you only need one - and I cannot think of a good reason to have more than one - does not preclude the fact that you do seem to be able to have multiple ASM instances on a single node, each looking after its own set of disks and diskgroups.
Again - I cannot think of a good reason to do so though!
-Bob

Multiple ASM Instances on single node

Hi All,
After going through some threads it seems to me that multiple ASM instances on a node is not supported and recommended by ORACLE but i coudn't find any ORACLE document or support matrix mentioning this. Can any one give me a pointer to this. Please correct me if i am wrong and Multiple ASM instances are fully supported by ORACLE.
Thanks,

Multiple ASM instances on a single node are supported but not recommended due to several issues you could encounter during that kind of configuration.
Possible interraction between those instances for identification of each disk area usage,each disk area permissions , database instance to asm instance mapping and so on, could result in unwanted behaviour, as ASM is in some way just oracle's representation of LVM.
Intention is that any kind of distinction/separation of oracle related data under the ASM should be done through the disk groups.
So it seems it would be better to apply this kind of logic rather than doing suspiciously magical and rare configurations that could bring you similiary strange and unexpected problems.

Need to get data from multiple database instances in a single query

Hi,
I need a small favour from you guys. The prob is as follows:
I need to get name, row_id from table A from schema 1 and gbu_name, name from table B from schema 2 where a.name = b.name. I wrote the query in the following manner:
SELECT a.name, a.row_id, b.gbu_name
FROM Schema1.A as a, Schema2.B as b
Where a.name = b.name
But this query is not working and the error is like " The table does not exists".
Please update me how to avoid the error and get the right sort of result.
Thanks & Regards,
Debabrata

Ah, youre actually asking different things.
In your topic title, you say youre running separate instances
In your body text, you say you are under different user/schema
So tell me, do you have more than one database or not? How many entries in your TNS file?
I would say, for "multiple database instances"
SELECT
a.id, b.id
FROM
tableA a
INNER JOIN
tableB@OTHER_DATABASE_LINK_NAME b <--NOTE!
USING(id)And of course you will have to look up CREATE PUBLIC DATABASE LINK sql..
Message was edited by:
charred

Multiple Database Instances on Single Server and effect of NLS_LANG

What is the effect of the NLS_LANG registry setting on a Windows server that is to host multiple database instance each created with a different database character set ? The server needs to support data in the following languages : Thai, Chinese Traditional, Chinese Simplified, Vietnamese and Korean. Selecting the Unicode character set(AL32UTF8) is not an option since the application is not Unicode complaint.
My understanding is that as long as NLS_LANG is set correctly on the client connecting to the particular database instance then the data will be stored correctly - is this correct ?
What should NLS_LANG be set to on the server if there are multiple oracle instances with different character sets ?

My question is not in relation to connecting to the database on the server itself but with regards to client connections. What I need to know is what is the effect of the NLS_LANG setting in the registry on a server that has multiple databases each created with a different character set ?
Say for instance, the server has two databases - one created with the character set ZHS16GBK and the other created with the character set JA16SJIS and NLS_LANG is set to SIMPLIFIED CHINESE_CHINA.ZHS16GBK in the registry on the server. Will Japanese data that is inserted into the database that has character set JA16SJIS be stored correctly when it is inserted from a client with NLS_LANG set to JAPANESE_JAPAN.JA16SJIS even though NLS_LANG is set to SIMPLIFIED CHINESE_CHINA.ZHS16GBK on the server ?

Multiple copies of same database on a 2 node RAC server - How to merge ?

I currently have multiple copies of the same database running on a 2 node Rac system. I am looking for a way to combine them into 1 large database but keeping the data separate.
The databases are copies of production for testing, development and a yearly "historical" databases .
All the databases are created from production, and generally have the same schema's , tables, procedures, etc however may be different versions and need to be.
Is There a way to use one large database and logically split all the different versions of the same objects into their own space in one database ? The structure cannot change as the database is for a 3rd party's Forms application the relies on the objects not changing names etc.
Ideally I am looking for a solution that will allow the forms application to connect to "test" and "historical" copies of our production database separately in the same database container.
Thanks for any direction.

I currently have multiple copies of the same database running on a 2 node Rac system. I am looking for a way to combine them into 1 large database but keeping the data separate.
The databases are copies of production for testing, development and a yearly "historical" databases .
All the databases are created from production, and generally have the same schema's , tables, procedures, etc however may be different versions and need to be.
Is There a way to use one large database and logically split all the different versions of the same objects into their own space in one database ? The structure cannot change as the database is for a 3rd party's Forms application the relies on the objects not changing names etc.
Ideally I am looking for a solution that will allow the forms application to connect to "test" and "historical" copies of our production database separately in the same database container.
Thanks for any direction.

Policy Managed RAC database instance on different node

Dear All,
Recently we have upgrade our production database from 2 node 11.2.0.1/Solaris 10 Sparc to 2 node 12.1.0.2/Solaris 11.2 Sparc
earlier was Admin managed database, now we have created Policy managed database.
Instance_1 running on node_2
Instnace_2 running on node_1
how to switch the instance to correct node or what is the concept , why it running vice versa even though assign ORACLE_SID properly.
please clarify me.
oracle@zhovm-proddb2:/u01/app/12.1.0.2/grid/bin$ srvctl status database -d proddb
Instance proddb_1 is running on node zhovm-proddb2
Instance proddb_2 is running on node zhovm-proddb1
Thanks.

muba_zak wrote:
Thanks John,
How the cron jobs takes care, is there any different is there between Admin Managed & Policy Managed
Thanks.
Muba
I don't know what your cron jobs do. If (for example) they logon to the database through a service published by the scan listeners, they will be happy. If they logon using a deterministic connect string, you have a problem - a problem caused by mis-using the system.

HELP !! only one ASM instance up at any given time on a 2 node RAC cluster

OS: Solaris 10
Oracle: 10.2.0.4
Problem: Installing ASM, dbca hangs, and errors out with End of communication channel.
Only one ASM instance can be brought up at any given time
PLEASE HELP !!!!
- nk

alert log
======
Thu Oct 1 23:09:54 2009
lmon registered with NM - instance id 1 (internal mem no 0)
Thu Oct 1 23:09:54 2009
Reconfiguration started (old inc 0, new inc 12)
ASM instance
List of nodes:
0 1
Global Resource Directory frozen
Communication channels reestablished
Thu Oct 1 23:24:59 2009
Errors in file /oracle/admin/+ASM/bdump/+asm1_lmon_1999.trc:
ORA-00481: LMON process terminated with error
Thu Oct 1 23:24:59 2009
LMON: terminating instance due to error 481
Thu Oct 1 23:24:59 2009
System state dump is made for local instance
Thu Oct 1 23:24:59 2009
Trace dumping is performing id=[cdmp_20091001232459]
Thu Oct 1 23:25:00 2009
Instance terminated by LMON, pid = 1999
Thu Oct 1 23:25:03 2009
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Interface type 1 bge1 192.168.10.0 configured from OCR for use as a cluster interconnect
Interface type 1 bge0 10.134.246.32 configured from OCR for use as a public interface
Picked latch-free SCN scheme 3
Using LOG_ARCHIVE_DEST_1 parameter default value as /oracle/product/10.2.0/db_1/dbs/arch
Autotune of undo retention is turned off.
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.4.0.
System parameters with non-default values:
large_pool_size = 12582912
instance_type = asm
cluster_database = TRUE
instance_number = 1
remote_login_passwordfile= EXCLUSIVE
background_dump_dest = /oracle/admin/+ASM/bdump
user_dump_dest = /oracle/admin/+ASM/udump
core_dump_dest = /oracle/admin/+ASM/cdump
asm_diskgroups =
Cluster communication is configured to use the following interface(s) for this instance
192.168.10.1
Thu Oct 1 23:25:03 2009
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
PMON started with pid=2, OS id=17923
DIAG started with pid=3, OS id=17925
PSP0 started with pid=4, OS id=17927
LMON started with pid=5, OS id=17929
LMD0 started with pid=6, OS id=17931
LMS0 started with pid=7, OS id=17933
MMAN started with pid=8, OS id=17937
DBW0 started with pid=9, OS id=17939
LGWR started with pid=10, OS id=17941
CKPT started with pid=11, OS id=17943
SMON started with pid=12, OS id=17945
RBAL started with pid=13, OS id=17955
GMON started with pid=14, OS id=17957
Thu Oct 1 23:25:04 2009
lmon registered with NM - instance id 1 (internal mem no 0)
Thu Oct 1 23:25:04 2009
Reconfiguration started (old inc 0, new inc 14)
ASM instance
List of nodes:
0 1
Global Resource Directory frozen
Communication channels reestablished
Thu Oct 1 23:40:09 2009
Errors in file /oracle/admin/+ASM/bdump/+asm1_lmon_17929.trc:
ORA-00481: LMON process terminated with error
Thu Oct 1 23:40:09 2009
LMON: terminating instance due to error 481
Thu Oct 1 23:40:09 2009
System state dump is made for local instance
Thu Oct 1 23:40:09 2009
Trace dumping is performing id=[cdmp_20091001234009]
Thu Oct 1 23:40:10 2009
Instance terminated by LMON, pid = 17929
Thu Oct 1 23:40:12 2009
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Interface type 1 bge1 192.168.10.0 configured from OCR for use as a cluster interconnect
Interface type 1 bge0 10.134.246.32 configured from OCR for use as a public interface
Picked latch-free SCN scheme 3
Using LOG_ARCHIVE_DEST_1 parameter default value as /oracle/product/10.2.0/db_1/dbs/arch
Autotune of undo retention is turned off.
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.4.0.
System parameters with non-default values:
large_pool_size = 12582912
instance_type = asm
cluster_database = TRUE
instance_number = 1
remote_login_passwordfile= EXCLUSIVE
background_dump_dest = /oracle/admin/+ASM/bdump
user_dump_dest = /oracle/admin/+ASM/udump
core_dump_dest = /oracle/admin/+ASM/cdump
asm_diskgroups =
Cluster communication is configured to use the following interface(s) for this instance
192.168.10.1
Thu Oct 1 23:40:13 2009
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
PMON started with pid=2, OS id=26086
DIAG started with pid=3, OS id=26088
PSP0 started with pid=4, OS id=26090
LMON started with pid=5, OS id=26092
LMD0 started with pid=6, OS id=26094
LMS0 started with pid=7, OS id=26096
MMAN started with pid=8, OS id=26100
DBW0 started with pid=9, OS id=26102
LGWR started with pid=10, OS id=26112
CKPT started with pid=11, OS id=26114
SMON started with pid=12, OS id=26116
RBAL started with pid=13, OS id=26118
GMON started with pid=14, OS id=26120
Thu Oct 1 23:40:13 2009
lmon registered with NM - instance id 1 (internal mem no 0)
Thu Oct 1 23:40:14 2009
Reconfiguration started (old inc 0, new inc 16)
ASM instance
List of nodes:
0 1
Global Resource Directory frozen
Communication channels reestablished

Routing all connections through a one node in a 2 node RAC cluster

Hi everyone
My client has the following requirement: an active/active RAC cluster (eg node1/node2), but with only one of the nodes being used (node1) and the other sitting there just in case.
For things like services, i'm sure this is straightforward enough - just have them set to preferred on node1 and available on node 2.
For connections, I imagine I would just have the vips in order in the tns file, but with LOAD_BALANCING=OFF, so they go through the tns entries in order (i.e node 1, then node 2), so this would still allow the vip to failover if node 1 is down.
Does that sound about right? Have I missed anything?
Many thanks
Rup

user573914 wrote:
My client has the following requirement: an active/active RAC cluster (eg node1/node2), but with only one of the nodes being used (node1) and the other sitting there just in case.Why? What is the reason for a "+just in case+" node - and when and how is is "enabled" when that just-in-case situation occurs?
This does not many any kind of sense from a high availability or redundancy view.
For connections, I imagine I would just have the vips in order in the tns file, but with LOAD_BALANCING=OFF, so they go through the tns entries in order (i.e node 1, then node 2), so this would still allow the vip to failover if node 1 is down.
Does that sound about right? Have I missed anything?Won't work on 10g - may not work on 11g. The Listener can and does handoff connections, depending on what the TNS connection string say. If you do not connect via a SID entry but via a SERVICE entry, and that service is available on multiple nodes, you may not (and often will not) be connected to instance on the single IP that you used in your TNS connection.
Basic example:
// note that this TEST-RAC alias refers to a single specific IP of a cluster, and use
// SERVICE_NAME as the request
/home/billy> tnsping test-rac
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 18-JAN-2011 09:06:33
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS=(PROTOCOL=TCP)(HOST= 196.1.83.116)(PORT=1521)) (LOAD_BALANCE=no) (CONNECT_DATA=(SERVER=shared)(SERVICE_NAME=myservicename)))
OK (50 msec)
// now connecting to the cluster using this TEST-RAC TNS alias - and despite we listing a single
// IP in our TNS connection, we are handed off to a different RAC node (as the service is available
// on all nodes)
// and this also happens despite our TNS connection explicitly requesting no load balancing
/home/billy> sqlplus scott/tiger@test-rac
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Jan 18 09:06:38 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Data Mining and Real Application Testing options
SQL> !lsof -n -p $PPID | grep TCP
sqlplus 5432 billy 8u IPv4 2199967 0t0 TCP 10.251.93.58:33220->196.1.83.127:37031 (ESTABLISHED)
SQL> So we connected to RAC node 196.1.83.116 - and that listener handed us off to RAC node 196.1.83.127. The 11gr2 Listener seems to behave differently - it does not do a handoff (from a quick test I did on a 11.2.0.1 RAC) in the above scenario.
This issue aside - how do you deal with just-in-case situation? How do you get clients to connect to node 2 when node 1 is down? Do you rely on the virtual IP of node 1 to be switched to node 2? Is this a 100% safe and guaranteed method?
It can take some time (minutes, perhaps more) for a virtual IP address to fail over to another node. During that time, any client connection using that virtual IP will fail. Is this acceptable?
I dunno - I dislike this concept of your client of treating the one RAC node as some kind of standby database for a just-in-case situation. I fail to see any logic in that approach.

RAC hangs when starting or stopping 2nd instance of 2 node RAC

Has anyone seen the problem with all transactions and/or logins hanging when starting or stopping the 2nd node of a 2 node RAC database. When I shut down the 2nd instance using srvctl I occasionally get errors and long delays connecting. On our larger database with instances having a very large SGAs, trying to connect you sometimes get ORA-12537 or ORA-01033. Users experience a very long hang before getting the errors. These instances have very large SGAs of about 30GB on each node.
In the log of the first instance we see messages like the following for quite a while.
Global Resource Directory frozen
Communication channels reestablished
Master broadcasted resource hash value bitmaps
Non-local Process blocks cleaned out
Mon Jan 8 06:59:08 2007
LMS 1: 0 GCS shadows cancelled, 0 closed
Mon Jan 8 06:59:08 2007
LMS 0: 0 GCS shadows cancelled, 0 closed
Set master node info
Submitted all remote-enqueue requests
Dwn-cvts replayed, VALBLKs dubious
All grantable enqueues granted
Mon Jan 8 06:59:23 2007
LMS 0: 20740 GCS shadows traversed, 4001 replayed
Mon Jan 8 06:59:23 2007
LMS 1: 20744 GCS shadows traversed, 4001 replayed
Mon Jan 8 06:59:23 2007
LMS 0: 20882 GCS shadows traversed, 4001 replayed
Mon Jan 8 06:59:23 2007
LMS 1: 20627 GCS shadows traversed, 4001 replayed
Mon Jan 8 06:59:24 2007
LMS 0: 20781 GCS shadows traversed, 4001 replayed
Mon Jan 8 06:59:24 2007
Thanks in advance.

I have tested with only one node and starting and stopping is much faster without any cache fusion traffic. The application is not RAC aware, it was written without regard for RAC. As you say there may be some accessing of the same block by all nodes causing RAC to remaster blocks when a node is shut down.
My concern is the length of time users are afftected when I am starting a node that has been offline for a while. With the large SGA I have, it appears users are affected adversely for several minutes, in affect causing an outage which we are trying to avoid by using RAC.

Database instance on 2 nodes fails to start due to ORA-07452

Hello All,
windows 64 bit 5 node rac ..10.2.0.3
We have an issue and this happens weekly once without fail for the last 3-4 weeks.
Everyday we have an expdp from production and and impdp script which imports that data into our test env.
Before the import starts there is a script which bringds down the database, puts into no archive log mode, starts the database up and kicks the import. Once import is done, it will again bring down the db, put it in archive log and start the entire db.
This works perfectly on everyday other than weekends (fri or sat..we are in middle east - Dubai). Over the weekend, the db goes down, put it in no archive log and when it tries to bring up the db, about 2 or 3 instances fail to come up with
Fri Nov 23 22:12:32 2007
Errors in file d:\oracle\product\10.2.0\admin\ajcprd\bdump\ajcprd4_reco_3324.trc:
ORA-07452: specified resource manager plan does not exist in the data dictionary
Fri Nov 23 22:12:34 2007
Instance terminated by USER, pid = 5520
ORA-1092 signalled during: ALTER DATABASE OPEN...
Import also fails to continue even though the node(and instance) on which the script executes is up and running.
We have not set resource manager plan.
Any help or assistance would be appriciated...
Thanks

Address this issue to Oracle Support.
Looks like some of old bugs comes to light again.
See Note:1787295.8 or Note:178987.1 for details.
Best Regards,
Alex

Multiple databases/instances on 4-node RAC Cluster including Physical Stand

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