Setting SDU size in RAC environment

Hi,
I need to set SDU size in a RAC environment. The instance does a dynamic registration with listener. I am not able to find documents on how to set the sdu in rac. Pl let me know if this can be done in local_listener parameter.
Thanks,
Ram

http://download-uk.oracle.com/docs/cd/B19306_01/network.102/b14212/performance.htm#i1006332

Similar Messages

Manually Setting up a Standby Database for RAC Environment

Hi,
I am a Junior DBA so apologies if this sounds like a silly question.
We have production 11g Extended RAC environment setup. Management have asked for a separate single instance database be setup as a standby DB on a separate 'cold' server in case we lose complete connection to both sides of the RAC. I read up on Oracle Data Guard and presented this as a solution, but they seem adamant about manually going in and copying out the latest backup and archive logs over to the standby database.
Can this be done? I mean, can ASM managed backup files and archive logs from one database be simply copied out of the backup directory and imported into a completely separate database as easy as that?
We are using ASM to manage to data files on the RAC. My understanding is that we cant manually access the files on an OS level when using ASM, but maybe I am wrong. Any help or opinions on this would be greatly appreciated.
Rgs,
Rob

Hi,
Can this be done? I mean, can ASM managed backup files and archive logs from one database be simply copied out of the backup directory and imported into a completely separate >database as easy as that?Yes, but depends on DB version.
what is the DB version.
from 11g you have cp command so there is a possibility to copy generated archive logs to standby location, so that you can apply..
In 10g there is no such option. you need to create a standby database. with automatic shipping
Thanks

How to create a wallet in oracle RAC environment

How to create a wallet in oracle RAC environment.
While running following command "alter system set encryption key identified by "thalesdata4";
I am getting error message "cannot auto create wallet" or "failed to open wallet.
Please suggest correct way to create a wallet in RAC environment.
Thanks
Sudhir

hi,
please refer for detailed explanation
Master Note for SSL Configuration in Fusion Middleware 11g [ID 1218695.1]
regards

Instnce name in non-RAC environment

Hi!
In non-RAC environment V$INSTANCE.INSTANCE_NAME does not actually displays the name of the instance,that was set in INSTANCE_NAME parameter.
It always displays DB_NAME instead.
Is it any way to get instance_name that has service user connected to in this environment?
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 09:16:25
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 0 hr. 0 min. 48 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
And SQLPLUS said
C:\Documents and Settings\oradba>sqlplus
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jan 28 09:44:59 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter user-name: emcos@emcor_srv2
Enter password:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
09:45:04 EMCOS@emcor_srv2 >select name from v$database;
NAME
EMCOR
Elapsed: 00:00:00.00
09:45:07 EMCOS@emcor_srv2 >select instance_name from v$instance;
INSTANCE_NAME
emcor
Elapsed: 00:00:00.01
09:45:21 EMCOS@emcor_srv2 >select service_name from v$session where sid=(select unique sid from v$mystat);
SERVICE_NAME
SRV2

Hemant K Chitale wrote:
The documentation on INSTANCE_NAME in the 10gR2 Reference says :
"In a single-instance database system, the instance name is usually the same as the database name."
(this after
"In a Real Application Clusters environment, multiple instances can be associated with a single database service. Clients can override Oracle's connection load balancing by specifying a particular instance by which to connect to the database. INSTANCE_NAME specifies the unique name of this instance.")
This would imply that setting INSTANCE_NAME in non-RAC is ignored. The usage of the word "usually" is weak.
Hemant K ChitaleBut what do says lsnrctl - it says that it is not weak
11:33:28 SYS@EMCOR_SRV1 >show parameter instance_name
NAME TYPE VALUE
instance_name string INST0
11:33:36 SYS@EMCOR_SRV1 >host lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 11:33:50
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 2 hr. 18 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
11:33:50 SYS@EMCOR_SRV1 >select sys_context('USERENV','INSTANCE_NAME') from dual;
SYS_CONTEXT('USERENV','INSTANCE_NAME')
emcor
Elapsed: 00:00:00.00
11:34:42 SYS@EMCOR_SRV1 >select service_name from v$session where sid=sys_context('USERENV','SID');
SERVICE_NAME
SRV1
Best regards, Sergey

Calculating total memory in oracle RAC environment

I have to calculate total memry in RAC environment.
For shared and buffer pool I execute show sga.
For UGA and PGA I execute statement that have two different values.
This is my two different methot for calculating total memory in oracle RAC environment.
Why I have very different value in this 2 statements on pga values?
first stat
with vs as
select 'PGA: ' pid
,iid
,session_pga_memory + session_uga_memory bytes
from (select inst_id iid
,(select ss.value
from gv$sesstat ss
where ss.sid = s.sid
and ss.inst_id = s.inst_id
and ss.statistic# = 20) session_pga_memory
,(select ss.value
from gv$sesstat ss
where ss.sid = s.sid
and ss.inst_id = s.inst_id
and ss.statistic# = 15) session_uga_memory
from gv$session s)
union all
select 'SGA: ' || name pid
,s.inst_id iid
,value bytes
from gv$sga s
select distinct iid, pid, sum(bytes) over (partition by iid, pid) bytes from vs
IID PID BYTES
1 PGA: 196764792 <=====
1 SGA: Database Buffers 318767104
1 SGA: Fixed Size 733688
1 SGA: Redo Buffers 811008
1 SGA: Variable Size 335544320
2 PGA: 77159560 <=====
2 SGA: Database Buffers 318767104
2 SGA: Fixed Size 733688
2 SGA: Redo Buffers 811008
2 SGA: Variable Size 335544320
second stat
with vs as
select 'PGA: ' pid
,p.inst_id iid
,p.pga_alloc_mem bytes
from gv$session s
,gv$sesstat pcur
,gv$process p
where pcur.statistic# in ( 20 -- = session pga memory
,15 -- = session uga memory
and s.paddr = p.addr
and pcur.sid = s.sid
and pcur.INST_ID = s.INST_ID
and pcur.INST_ID = p.INST_ID
union all
select 'SGA: ' || name pid
,s.inst_id iid
,value bytes
from gv$sga s
select distinct iid, pid, sum(bytes) over (partition by iid, pid) bytes from vs
IID PID BYTES
1 PGA: 342558636 <=====
1 SGA: Database Buffers 318767104
1 SGA: Fixed Size 733688
1 SGA: Redo Buffers 811008
1 SGA: Variable Size 335544320
2 PGA: 186091416 <=====
2 SGA: Database Buffers 318767104
2 SGA: Fixed Size 733688
2 SGA: Redo Buffers 811008
2 SGA: Variable Size 335544320

I'm sorry but it is not clear to me.
- From v$session (1th stmt) I have
nearly 196MB of PGA mem on instance 1
and
nearly 77MB of PGA mem on instance 2
- From v$process (2th stmt) I have
nearly 342MB of PGA mem on instance 1
and
nearly 186MB of PGA mem on instance 2
then...
342+186 - 196+77 = nearly 255MB of memory allocated by oracle processes but free?
if I want calculate the total thing of the amount of the allocated memory from Oracle...It is more correct 2th statement that query v$process...it is true?

Concurrent Managers in a Non-PCP RAC environment

Hi Gurus,
If one of the RAC instance which is running most of the managers fails in RAC (Non-PCP) environment, what happens to the managers and requests?
How to ensure failover in this case?
Is it possible to start all the managers and requests on other RAC instance node without manual intervention?
Thanks in advance.
~Santosh

user8828742 wrote:
Hi Gurus,
If one of the RAC instance which is running most of the managers fails in RAC (Non-PCP) environment, what happens to the managers and requests?
How to ensure failover in this case?
Is it possible to start all the managers and requests on other RAC instance node without manual intervention?
Thanks in advance.
~SantoshPlease see these docs.
Failover is Not Working in E-Business RAC Environment. [ID 386685.1]
Can Automatic Failover Occur With Forms On a Multi-node Oracle RAC Database for E-Business Suite? [ID 1500213.1]
Using Oracle 11g Release 2 Real Application Clusters with Oracle E-Business Suite Release 12 [ID 823587.1] -- 3.9.2 Set Up PCP
How to Activate Parallel Concurrent Processing - Background Facts and Setup Steps [ID 602899.1]
Concurrent Manager Do Not Fail Over When One Rac Instance Goes Down. [ID 1335036.1]
Thanks,
Hussein

Steps to do switchover / switchback in RAC environment

Hi folks,
I m having setup with 2 node RAC primary and 2 node RAC Dataguard on 10.2.0.4.0. Dataguard setup is working fine. Dataguard is setup with Standby Redo log group with managed recovery. There is no problem with transferring archives & applying on standby.
Now I want to do Switchover/Switchback between Primary and Standby for RAC. I am familiar with Single instance Switchover and Switchback but never did RAC environment Switchover/Switchback. Can anybody please elaborate steps or suggest any link for me??
regards,
manish

Hi Guys,
Today I performed RAC Switchover / Switchback for 2 Node Primary with 2 Node Standby on OEL. I expected some issues, but it was totally smooth. Giving you steps for the same, so it will be useful to you. Even this would be my first contribution to Oracle Forums.
DB Name     DB Unique Name     Host Name     Instance Name
live     live     linux1     live1
live     live     linux2     live2
live     livestdby     linux3     livestdby1
live     livestdby     linux4     livestdby2
Verify that each database is properly configured for the role it is about to assume and the standby database is in mounted state.
(Verify all Dataguard parameters on each node for Primary & Standby)
Like,
Log_archive_dest_1
Log_archive_dest_2
Log_archive_dest_state_1
Log_archive_dest_state_2
Fal_client
Fal_server
Local_listener
Remote_listener
Standby_archive_Dest
Standby_archive_management
service_names
db_unique_name
instance_name
db_file_name_convert
log_file_name_convert
Verify that both Primary RAC & Dataguard RAC are functioning properly and both are in Sync
On Primary,
Select thread#,max(sequence#) from v$archived_log group by thread#;
On Standby,
Select thread#,max(sequence#) from v$log_history group by thread#;
Before performing a switchover from a RAC primary shut down all but one primary instance (they can be restarted after the switchover has completed).
./srvctl stop instance –d live –i live1
Before performing a switchover or a failover to a RAC standby shut down all but one standby instance (they can be restarted after the role transition has completed).
./srvctl stop instance –d live –i livestdby1
On the primary database initiate the switchover:
alter database commit to switchover to physical standby with session shutdown;
Shutdown former Primary database & Startup in Mount State.
Shut immediate;
Startup mount;
select name,db_unique_name, log_mode,open_mode,controlfile_type,switchover_status,database_role from v$database;
Make log_Archive_Dest_state_2 to DEFER
alter system set log_archive_dest_state_2='DEFER' sid='*';
On the (old) standby database,
select name,log_mode,open_mode,controlfile_type,switchover_status,database_role from v$database;
On the (old) standby database switch to new primary role:
alter database commit to switchover to primary;
shut immediate;
startup;
On new Primary database,
select name,log_mode,open_mode,controlfile_type,switchover_status,database_role from v$database;
Make log_Archive_Dest_state_2 to ENABLE
alter system set log_archive_dest_state_2='ENABLE' sid='*';
Add tempfiles in New Primary database.
Do some archivelog switches on new primary database & verify that archives are getting transferred to Standby database.
On new primary,
select error from v$archive_Dest_status;
select max(sequence#) from v$archived_log;
On new Standby, Start Redo Apply
alter database recover managed standby database using current logfile disconnect;
Select max(sequence#) from v$log_history; (should be matching with Primary)
Now Start RAC databases services (both Primary – in open & Standby – in mount)
On new Primary Server.
./srvctl start instance –d live –i livestdby2
Verify using ./crs_stat –t
Check that database is opened in R/W mode.
On new Standby Server.
./srvctl start instance –d live –i live2 –o mount
Now add TAF services on new Primary (former Standby) Server.
By Command Prompt,
./srvctl add service -d live -s srvc_livestdby -r livestdby1,livestdby2 -P BASIC
OR
By GUI,
dbca -> Oracle Read Application Cluster database -> Service Management -> select database -> add services, details (Preferred / Available), TAF Policy (Basic / Preconnect) - > Finish
Start the services,
./srvctl start service -d live
Verify the same,
./crs_stat -t
Perform TAF testing, to make sure Load Balancing & Failover.
regards,
manish
Email: [email protected]
Edited by: Manish Nashikkar on Aug 31, 2010 7:41 AM
Edited by: Manish Nashikkar on Aug 31, 2010 7:42 AM

Transaction Recovery within an Oracle RAC environment

Good evening everyone.
I need some help with Oracle 11gR1 RAC transaction-level recovery issues. Here's the scenario.
We have a three(3) node RAC Cluster running Oracle 11g R1. The Web UI portion of the application connects through WLS 9.2.3 with connection pooling set. We also have a command-line/SQL*Developer component that uses a TNSNAMES file that allows for both failover and load balancing. Within either the UI or the command line portion of the application, a user can run a process by which invokes one or more PL/SQL Packages to be invoked. The exact location of the physical to the database is dependent on which server is chosen from either the connection pooling or the TNSNAMES.ORA Load Balancing option.
In the normal world, the process executes and all is good. The status of the execution of this process is updated by the Packages once completed. The problem we are encountering is when an Oracle Instance fails. Here's where I need some help. For Application-level (Transaction Level) recovery, the database instances are first recovered by the database background proccesses and then Users must determine which processes were in flight and either re-execute them (if restart processing is part of the process) or remove any changes and restart from scratch. Given that the database instance does not record which processes are "in flight" it is the responsibility of the application to perform its own recovery processing. Is this still true?
If an instance fails, are "in flight" transactions/connections moved to other instances in the Grid/RAC environment? I don't think this is possible but I don't remember if this was accomplished through a combination of Application and Database Server features that provide feedback between each other. How is the underlying application notified of the change if such an issue occurs? I remember something similar to this in older versions of Oracle but I cannot remember what it was callled.
Any help or guidance would be great as our client is being extremely difficult in pressing this issue.
Thanks in advance
Stephen Karniotis
Project Architect - Compuware
[email protected]
(248) 408-2918

You have not indicated whether you are using TAF or FCF ... that would be the first place to start.
My recommendation would be to let Oracle roll back the database changes and have the application resubmit the most recent work.
If the application knows what it did since the last "COMMIT" then you should be fine with the possible exception of variables stored
in packages. Depending on packages retaining values is an issue best solved with PRAGMA SERIALLY_REUSABLE ... in other words
not using the retention feature.

Oracle Streams on a Rac Environment

Hi
I have some questions with respect to Setting up Streams on a rac Environment.Would appreciate a quick response as I need the answers by tommorrow.Any help would be greatly appreciated.Here are the questions
1> Do we have to create capture process for each active instance on only 1 capture process will do?
2> If yes then do they need to have a seperate queue for each one?
3> How will the apply process access multiple capture process and the propogation take place?
4> can only 2 tables in the source be replicated instead of the entire database?
5> In case if we use a push job if both the primary and secondary go down how can we move to the third instance and use it?
6> If the instance goes down do we have to restart the capture process once again?
7>What is the best suited for rac - ASM/RAW FILES with respect to Streams?
Regards
Shweta

Streams in 9iR2 RAC environment mines only from archive logs not online redo logs. This restriction is lifted in 10g RAC. If you choose to go thru the downstream capture route in 10g then you can only mine from archive logs in 10gR1.
Having said the above here are my answers:
1> Do we have to create capture process for each active instance or only 1 capture process will do?
You can run multiple capture processes each on difference instance in RAC. Unless you have a requirement to do so, a single capture process would suffice. The in-memory queue should also be on the same instance as the capture process is running from.
2> If yes then do they need to have a seperate queue for each one?
YES
3> How will the apply process access multiple capture process and the propogation take place?
Propagation is from a source queue to the destination queue. If the destination is a single instance database, then you can direct propagations for all of your capture(s) into a single apply queue. If the destination is also RAC then you can run multiple apply processes on each node and apply changes for specific set of tables. Maintenance would be something to think about here along with what happens when one node goes down.
4> can only 2 tables in the source be replicated instead of the entire database?
YES. Streams is flexible to let you decide what level you want to replicate.
5> In case if we use a push job if both the primary and secondary go down how can we move to the third instance and use it?
In theory propagation is a push job. There are certain things you need to configure correctly. If done, then you can move the entire streams configuration to any of the surviving node(s).
6> If the instance goes down do we have to restart the capture process once again?
In 9iR2 you have to restart the streams processes. In 10g the streams processes automatically migrate and restart at the new "owning" instance. In both versions, Queue ownership is transferred automatically to the surviving instance.
7> What is the best suited for rac - ASM/RAW FILES with respect to Streams?
Streams is independent of the storage system you use. I cannot think of any correlation here.

Is a gateway mandatory for RAC environment?

Question:
Is a gateway mandatory for RAC installation, general on RAC environment?
*..when yes, why?*
Many thanks
I make this test with my only one RAC node
1. Run with gateway:
[oracle@linux1 ~]$ crs_stat -t
Name           Type           Target    State     Host
ora....SM1.asm application    ONLINE    ONLINE    linux1
ora....X1.lsnr application    ONLINE    ONLINE    linux1
ora.linux1.gsd application    ONLINE    ONLINE    linux1
ora.linux1.ons application    ONLINE    ONLINE    linux1
ora.linux1.vip application    ONLINE    ONLINE    linux1
ora.orcl.db    application    ONLINE    ONLINE    linux1
ora....l1.inst application    ONLINE    ONLINE    linux1
ora....test.cs application    ONLINE    ONLINE    linux1
ora....cl1.srv application    ONLINE    ONLINE    linux1
[oracle@linux1 ~]$ srvctl status database -d orcl
Instance orcl1 is running on node linux1All thing seem correct!
2. run without gateway (blank setting):
[oracle@linux1 ~]$ crs_stat -t
Name           Type           Target    State     Host
ora....SM1.asm application    ONLINE    OFFLINE
ora....X1.lsnr application    ONLINE    OFFLINE
ora.linux1.gsd application    ONLINE    ONLINE    linux1
ora.linux1.ons application    ONLINE    ONLINE    linux1
ora.linux1.vip application    ONLINE    OFFLINE
ora.orcl.db    application    ONLINE    OFFLINE
ora....l1.inst application    ONLINE    OFFLINE
ora....test.cs application    ONLINE    OFFLINE
ora....cl1.srv application    ONLINE    OFFLINE
[oracle@linux1 ~]$ srvctl status database -d orcl
Instance orcl1 is not running on node linux1Something is false!

By default, the server's default gateway is used as a ping target during the Oracle RAC 10g VIP status check action.
Upon a ping failure, Oracle will decide that the current interface where the VIP is running has failed, and will initiate
an interface / internode VIP failover.
In above case, we used just one node for CRS installation, so the VIP coudn't failover to other nodes and thus reported additional error like :
CRS-1006: No more members to consider
CRS-0215: Could not start resource 'ora.dbtest2.vip'.
Try ->
A parameter FAIL_WHEN_DEFAULTGW_NOT_FOUND in the file
$ORA_CRS_HOME/bin/racvip to address this problem.
The following steps will fix the VIP starting problem for above mentioned scenario.
1- stop nodeapps
2- As root,
vi the script $ORA_CRS_HOME/bin/racgvip and change the value of
variable FAIL_WHEN_DEFAULTGW_NOT_FOUND=0 .
3- start nodeapps and you should see the resources ONLINE
You may proceed with netca and dbca to create a RAC database after this.

Am i missing the most basic setting for RMAN in RAC?

DB version: 10.2.0.4
We've set up a 2 node RAC environment. Everything is working fine (failover,...etc).Each node can 'view' other node's archive log destination from OS level.
ie. When you type
df -hboth nodes can see each other's location of archive logs.
When i was trying to take a test LEVEL 0 backup, i got the following error.
Starting backup at 12-JUL-10
current log archived
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup plus archivelog command at 07/12/2010 19:32:27
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file /u04/arch214/arch_603157736_2_47455.arc
ORA-27037: unable to obtain file statusI tried doing
crosscheck archivelog all;
delete expired archivelog all;as shown below.
RMAN> crosscheck archivelog all;
configuration for DISK channel 2 is ignored
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=1588 instance=cedar2 devtype=DISK
validation failed for archived log
archive log filename=/u04/arch214/arch_603157736_1_69607.arc recid=56811 stamp=724184789
validation failed for archived log
archive log filename=/u04/arch214/arch_603157736_1_69608.arc recid=56814 stamp=724188191
validation failed for archived log
archive log filename=/u04/arch214/arch_603157736_1_69609.arc recid=56815 stamp=724188719
validation succeeded for archived log
archive log filename=/data/arch215/arch_603157736_2_47455.arc recid=56816 stamp=724188726
Crosschecked 4 objects
RMAN> delete expired archivelog all;
starting full resync of recovery catalog
full resync complete
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=1588 instance=cedar2 devtype=DISK
List of Archived Log Copies
Key Thrd Seq S Low Time Name
135777 1 69607 X 12-JUL-10 /u04/arch214/arch_603157736_1_69607.arc
135786 1 69608 X 12-JUL-10 /u04/arch214/arch_603157736_1_69608.arc
135808 1 69609 X 12-JUL-10 /u04/arch214/arch_603157736_1_69609.arc
Do you really want to delete the above objects (enter YES or NO)? y
deleted archive log
archive log filename=/u04/arch214/arch_603157736_1_69607.arc recid=56811 stamp=724184789
deleted archive log
archive log filename=/u04/arch214/arch_603157736_1_69608.arc recid=56814 stamp=724188191
deleted archive log
archive log filename=/u04/arch214/arch_603157736_1_69609.arc recid=56815 stamp=724188719
Deleted 3 EXPIRED objects
RMAN> resync catalog;
starting full resync of recovery catalog
full resync completeBut i still keep getting
RMAN-06059: expected archived log not found, lost of archived log compromises recoverabilityWhenever i try to take a level 0 backup.
Am i missing some basic CONFIGURATION setting (persistent setting) here?

The archivelog is actually at
/data/arch215/arch_603157736_2_47455.arc However, RMAN is looking for it at
/u04/arch214/arch_603157736_2_47455.arcThe path is different. Can you check the filename in v$ARCHIVED_LOG ?
Apparenly, the log_archive_dest_1 parameter is different in the two instances.
Have you configured multiple Channels appropriately to connect to the two instances ?
Hemant K Chitale
Edited by: Hemant K Chitale on Jul 13, 2010 3:40 PM

Job Chain in RAC Environment

Hi,
i've a job chain defined in a RAC environment.
I need that all the steps of my chain are performed on the same instance.
How can i do this?
Now stepA run on the instance 1 and stepB run on the instance 2.
Thanks.

Again, If it is a file system write issue, use ACFS (11.2.0.x) to create a shared file system that all nodes can see. What are you using to delete/create these files? A shell script?
1) create an ACFS file system of sufficient size to handle your data
2) mkdir /some/acfs/location
3) using sqlplus create a database directory " create directory foo as '/some/acfs/location' "
4) put the file in this location
5) use UTL_FILE to delete AND create the file (see fremove() - http://docs.oracle.com/cd/E11882_01/appdev.112/e10577/u_file.htm)

Help while creating ASM instance on rac environment on Linux

Help while creating ASM instance on rac environment on Oracle enterprise Linux 4 x84_64 Update 5 (10g2).
a) Installed ASMLib 2.0 Packages
b) Configured and Loaded the ASMLib 2.0 Packages
c) Created ASM Disks for Oracle
d) I can see, three volumes already defined for ASM file system.
By running following command (on both node), I get following that means disk are detected.
/etc/init.d/oracleasm listdisks
VOL1
VOL2
VOL3
But Disk members not displayed for creating disk groups. I even tried to "Change Disk Discovery Path" button and put "ORCL:VOL*" but still no luck.
Someone told me use, use ADD DISKS button but this button is disabled for me.
Can anyone, please help me if I missing something.

*****SOLVED******
Thanks for reply..
I set the Change Disk Discovery Path" to /dev/oracleasm/disk/* instead of "ORCL:VOL* and this worked for me.

Configuring our RAC environment Questions

The environment consists of Sun Solaris 10, Veritas, and 10g RAC:
Questions:
I need to know the settings and configuration of the entire software stack that will be the foundation of the oracle RAC environment....Network configurations, settings and requirements for any networks including the rac network between servers
How to set up the solaris 10k structures: what goes into the global zones, the containers, the resource groups, RBAC roles, SMF configuration, schedulers?
Can we use zfs, and if so, what configuration, and what settings?
In addition, these questions I need answers to:
What I am looking for is:
-- special hardware configuration issues, in particular the server rac interconnect. Do we need a hub, switch or crossover cables configured how.
-- Operating System versions and configuration. If it is Solaris 10, then there are more specific requirements: how to handle smf, containers, kernel settings, IPMP, NTP, RBAC, SSH, etc.
-- Disk layout on SAN, including a design for growth several years out: what are the file systems with the most contention, most use, command tag depth issues etc. (can send my questionnaire)
-- Configuration settings\ best practices for Foundation suite for RAC and Volume manager
-- How to test and Tune the Foundation suite settings for thru-put optimization. I can provide stats from the server and the san, but how do we coordinate that with the database.
-- How to test RAC failover -- what items will be monitored for failover that need to be considered from the server perspective.
-- How to test data guard failures and failover -- does system administration have to be prepared to help out at all?
-- How to configure Netbackup --- backups

Answering all these questions accurately and correctly for you implementation might be a bit much for a forum posting.
First I'd recommend accessing the Oracle documentation on otn.oracle.com. This should get you the basics about what is supported for the environment your looking to set up, and go a long way to answering your detailed questions.
Then I'd break this down into smaller sets of specific questions and try and get the RAC axters on the RAC forum to help out.
See: Community Discussion Forums » Grid Computing » Real Application Clusters
Finally Oracle Support via Metalink should be able to fill in any gaps int he documentation.
Good luck on your project,
Tony

RAC environment setup for OEM Grid Control

Hi All,
One of my customer is setting up RAC environment for OEM Grid Control, he has following questions.
1) Can I use the DirectNFS client on each RAC node to mount SAN storage created with an OCFS2 filesystem?
2) Can I use the DirectNSF client to mount the shared filesystem loader directory?
3) Should I be using DirectNFS for the shared filesystem loader at all? Or should I just use a normal Linux NFS mount?
4) Is OCFS2 preferred over NFS for the shared filesystem loader?
Any information is highly appriciated.
Thank you,
Bhavin

Please check the below doc
http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10gR2_EnterpriseManagerBestPractices.pdf

Setting SDU size in RAC environment

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