Oracle 9i Real Application Cluster

Hi all,
In grid control, we receive an alert as global cache current block request time is 1.03 cs. and global cache current gets time is 0.44 cs..Please clarify whether it is alarming and can any remedial steps be taken.
Thanks.
Kind regards,
Raj

Dear Raj,
Yeah, this statistics is alarming.
--> Which is your cluster interconnect ?
--> Are you using switch ?
--> Using oradebug ipc check, cluster inteconnect is using which network,public or private ?
--> Check the port speed settings.
--> Which os you are using ?
Thanks,
Adinath

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We are using SAP 4.7 running on Oracle 9i with HP-UNIX clustering.
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Do we need to re-install SAP and Oracle ?

Both 4.7 and Oracle 9 are already out of support.
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FS

Linux set up for Oracle RAC (real application cluster)

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[email protected] wrote:
Want to increase knowlegde on like:Here are very basic answers to very complex questions - from a pure Linux perspective running an Open Source stack and untainted kernel.
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Oracle 9i Real Application Clusters Failover

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I can provide more info if needed......THANKS!!

In this weekend I will begin that odessy...
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stop. BAAN and Oracle will have an "implementation guide" or best practices. There is also the Oracle MAA Maximum Availability Architecture. Go Read those first.

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Hello Guys,
I have been working in Oracle database 9i for last 2 years. Just using the simple features of oracle. Now our data have grown and company wants to enhance the database version and also want to perform load balancing at oracle's end.
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Regards,
Imran Baig

What is the difference between Oracle 10g Release 2
Enterprise Installation and Oracle 10g Release 2 Real
Application Cluster installation. Are these 2Enterprise Edition is the database management software provided byu Oracle.
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Newbie question about Oracle Parallel Server and Real Application Cluster

I am trying to find out what kind of storage system is supported by the 9i Real Applicaton cluster. I have looked at the 8i Oracle Parallel Server which requires raw partitions and therefore NAS (network attached storage) that provides an interface at the file level will not work. Does anyone know if the 9i Real Application cluster has a similar requirement for raw partitions? any suggestions of whether SAN or other technology will be suitable? pointers to more information is appreciated.
Robert

Hi Derik,
I know this is a really broad question. No, it happens all the time! Here is a similar issue:
http://blog.tuningknife.com/2008/09/26/oracle-11g-performance-issue/
+"In the end, nothing I tried could dissuade 11g from emitting the “PARSING IN CURSOR #d+” message for each insert statement. I filed a service request with Oracle Support on this issue and they ultimately referred the issue to development as a bug. Note that Support couldn’t reproduce the slowness I was seeing, but their trace files did reflect the parsing messages I observed."+
I would:
1 - Start by examining historical SQL execution plans (stats$sql_plan or dba_hist_sql_plan). Try to isolate the exact nature of the decreased performance.
Are different indexes being used? Are you geting more full-table scans?
2 - Migrate-in your old 10g CBO statistics
3 - Confirm that all init.ora parms are identical
4 - Drill into each SQL with a different execution plan . . .
Raid 5 Don't believe that crap that all RAID-5 is evil. . . .
http://www.dba-oracle.com/t_raid5_acceptable_oracle.htm
But at the same time, consider using the Oracle standard, RAID-10 . . .
Hope this helps . . .
Donald K. Burleson
Oracle Press author
Author of "Oracle Tuning: The Definitive Reference"
http://www.rampant-books.com/t_oracle_tuning_book.htm
"Time flies like an arrow; Fruit flies like a banana".

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Hi,
Is it possible to configure Real Application Cluster (RAC) Oracle 9i with Windows 2000 Server / Advanced Server ?
If yes, what component and Oracle Software should I prepare to build this system ?
Can anybody explain this step by step.
Thanks in advance
ESB

Hi;
For your issue i suggest close your thread here as changing thread status to answere and move it to Forum Home » System Management and Integration » Data Integrator which you can get more quick response
Regard
Helios

10.2.0.3 to 10.2.0.4 upgrade-Real Application cluster Component INVALID

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COMP_NAME
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Oracle Database Packages and Types
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Oracle Workspace Manager
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HTH
Srini

Real Application Cluster on Sun Solaris 8 and Sun Cluster 3

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Thank you for helping and best regards from Berlin/Germany
Michael Wuttke

Forms and report services work fine on solaris 8.
My problem is on the client side.
I have to use solaris 8 with netscape like forms clients
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Help! Real Application Cluster!

Is there anyone who setup real application cluster on linux machine.
I wanna setup RAC( two instance on one machine ).
I don't have shared storage. Can I setup with extra ide harddisk?
Is SID same each instance on one machine?
Give me your information, please!
Thanks for your reading.
have nice day!

Hi
Cluster means MORE than one machine, so you need al least 2 machines (better 3 or more)
basic:
node1---------node2--------- OUTSIDE WORLD
oracle oracle
private IP1 private IP2
Public IP for world
Better:
node1 ---node2----entry point---OUTSIDE WORLD
oracle oracle Public IP
prvtIP1 prvIP2 cluster control
node 1... node N MUST share a space, so if you don't have an array you MUST find a network file system to share between nodes.
NFS/SAMBA don't work, because Oracle needs to mount this system as RAW, I'm trying it with LVM but I don't know if it will work.
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A10!

Hardware Architecture of Real Application Cluster (RAC)

I'll implement Oracle 9i with Real Application Cluster (RAC). I now have two Sun SF280R servers.
Can I use ONE common storage to build RAC?
SF280R - Storage - SF280R
OR is it necessary to have TWO storages?
SF280R SF280R
|..........\/..........|
StorageStorage
Thanks

The whole idea behind RAC is that there is shared storage for 2 or more database instances. If one instance goes down, the other(s) seemlessly take over. RAC provides insurance against instance failures. Stand by databases (also known as data guard) provide insurance against database (the actual data files) failure.
HTH.
-Raj Suchak
[email protected]

What is meant by "mixed messeges" in Real Application Cluster?

What is meant by "mixed messeges" in Real Application Cluster?
Regards
mohideen

means while deploying it wont be in war or ear format

Required hardware for a oracle real application cluster

hello i´m a newbie and have a question:
We want to migrate a DB2 database to Oracle database. This database will run in the cluster network. What hardware do I need a prerequisite to set up an Oracle Real Application Clusters (10g)?
thank a lot for help!

Hi,
HW sizing depends on lot of information like the Size of the Database, Average load on the Database, Number of DB users, what application is using the database... could you please let us know all these information and oracle license depends on the number of CPU you on the server. Kindly let us know the OS on which you want to run the oracle RAC.
Regards,
Satya.

Oracle 9i Real Application Cluster

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