New Database parameter settings

I have a new Windows server with Oracle 11g, Windows 2008 R2, 4 CPU and 10 G of memory.
I had another server that had 2 cpu and 5 G of memory but the Oracle database was not utilizing the memory appropriately (I am also New to Oracle)
So I am setting up the new database to use 8G for the SGA and PGA this time on this new server. One thing I noticed in the last test of the application on the previos server was that the bottleneck appeared to be the Buffer cache hit ratio and shared pool....it also appeared to be extremely IO intesive however the network adapeter never spiked above 12%. So all of the contention was or seemed to be in the database.
With the new server should I increase the db_block_buffer parameter? It is currently defaulted to 0?
Any help would be appreciated. The application we are setting this up for is extremely cursor intensive and we cannot change the code.

ofmdba wrote:I have a new Windows server with Oracle 11g, Windows 2008 R2, 4 CPU and 10 G of memory.
I had another server that had 2 cpu and 5 G of memory but the Oracle database was not utilizing the memory appropriately (I am also New to Oracle)
>
How did you measure that oracle is not using the memory properly? Oracle is not supposed to use the complete physical memory anyways. It can use only what is going to be set for it.
<font color="red"> I was watching spotlight for Oracle and the server perfmon counters and never saw any real work....Physical IO appeared high the total SGA area was 888MB and the appliation that goes against it is cursor intensive....at the time a tester was running a search and sort of 14,000 records and it took 18 minutes. My thought, however wrong I might be, was that the SGA could be sized much larger to take advantage of the memory on this server, and hopefully reduce the time it is taking </font>
>
So I am setting up the new database to use 8G for the SGA and PGA this time on this new server. One thing I noticed in the last test of the application on the previos server was that the bottleneck appeared to be the Buffer cache hit ratio and shared pool....it also appeared to be extremely IO intesive however the network adapeter never spiked above 12%. So all of the contention was or seemed to be in the database.
>
Using the hit ratios to tell that there was a contention or bad performance is not such a good idea. If hit ratio was the only criteria that you used or had , I wouldn't call it a right move to make.
>
With the new server should I increase the db_block_buffer parameter? It is currently defaulted to 0?
>
This parameter is obsoleted and not in the current release of 11g but since 9i. So you should not bother about this parameter at all.
>
Any help would be appreciated. The application we are setting this up for is extremely cursor intensive and we cannot change the code.
>
So if its creating lots of cursors , it is possible that the application is using lots of literals and constants which can be reduced using the parameter Cursor_sharing.

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hi friend,
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error like this
create database alauki
error at line 1:
ORA-01092 : ORACLE instance terminated. Disconnection forced
the alert log file is
Dump file e:\ritesh\alauki\bdump\alert_alauki.log
Mon Jan 02 06:42:47 2006
ORACLE V9.2.0.1.0 - Production vsnsta=0
vsnsql=12 vsnxtr=3
Windows 2000 Version 5.1 Service Pack 2, CPU type 586
Mon Jan 02 06:42:47 2006
Starting ORACLE instance (normal)
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LICENSE_SESSIONS_WARNING = 0
SCN scheme 2
Using log_archive_dest parameter default value
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SYS auditing is disabled
Starting up ORACLE RDBMS Version: 9.2.0.1.0.
System parameters with non-default values:
processes = 150
timed_statistics = TRUE
shared_pool_size = 50331648
large_pool_size = 8388608
java_pool_size = 33554432
control_files = E:\RITESH\DATA\CONTROL01.CTL, E:\RITESH\MIRROR\CONTROL01.CTL
db_block_size = 8192
db_cache_size = 25165824
compatible = 9.2.0.0.0
db_file_multiblock_read_count= 16
fast_start_mttr_target = 300
undo_management = AUTO
undo_tablespace = UNDOTBS1
undo_retention = 10800
remote_login_passwordfile= EXCLUSIVE
db_domain =
instance_name = ALAUKI
dispatchers = (PROTOCOL=TCP) (SERVICE=ALAUKIXDB)
job_queue_processes = 10
hash_join_enabled = TRUE
background_dump_dest = E:\RITESH\ALAUKI\bdump
user_dump_dest = E:\RITESH\ALAUKI\udump
core_dump_dest = E:\RITESH\ALAUKI\cdump
sort_area_size = 524288
db_name = ALAUKI
open_cursors = 300
star_transformation_enabled= FALSE
query_rewrite_enabled = FALSE
pga_aggregate_target = 25165824
aq_tm_processes = 1
PMON started with pid=2
DBW0 started with pid=3
LGWR started with pid=4
CKPT started with pid=5
SMON started with pid=6
RECO started with pid=7
CJQ0 started with pid=8
QMN0 started with pid=9
Mon Jan 02 06:43:02 2006
starting up 1 shared server(s) ...
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
Mon Jan 02 06:43:07 2006
alter database mount exclusive
Mon Jan 02 06:43:08 2006
ORA-09341: scumnt: unable to mount database
OSD-04400: unable to acquire internal semaphore for process
O/S-Error: (OS 183) Cannot create a file when that file already exists.
Mon Jan 02 06:43:08 2006
ORA-1102 signalled during: alter database mount exclusive...
Shutting down instance: further logons disabled
Shutting down instance (immediate)
License high water mark = 3
Waiting for dispatcher 'D000' to shutdown
Waiting for shared server 'S000' to die
All dispatchers and shared servers shutdown
Mon Jan 02 06:46:03 2006
alter database close normal
ORA-1507 signalled during: alter database close normal...
Dump file e:\ritesh\alauki\bdump\alert_alauki.log
Mon Jan 02 10:50:49 2006
ORACLE V9.2.0.1.0 - Production vsnsta=0
vsnsql=12 vsnxtr=3
Windows 2000 Version 5.1 Service Pack 2, CPU type 586
Mon Jan 02 10:50:49 2006
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
SCN scheme 2
Using log_archive_dest parameter default value
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Mon Jan 02 10:51:24 2006
Starting up ORACLE RDBMS Version: 9.2.0.1.0.
System parameters with non-default values:
processes = 150
timed_statistics = TRUE
shared_pool_size = 50331648
large_pool_size = 8388608
java_pool_size = 33554432
control_files = E:\RITESH\DATA\CONTROL01.CTL, E:\RITESH\MIRROR\CONTROL01.CTL
db_block_size = 8192
db_cache_size = 25165824
compatible = 9.2.0.0.0
db_file_multiblock_read_count= 16
fast_start_mttr_target = 300
undo_management = AUTO
undo_tablespace = UNDOTBS1
undo_retention = 10800
remote_login_passwordfile= EXCLUSIVE
db_domain =
instance_name = ALAUKI
dispatchers = (PROTOCOL=TCP) (SERVICE=ALAUKIXDB)
job_queue_processes = 10
hash_join_enabled = TRUE
background_dump_dest = E:\RITESH\ALAUKI\bdump
user_dump_dest = E:\RITESH\ALAUKI\udump
core_dump_dest = E:\RITESH\ALAUKI\cdump
sort_area_size = 524288
db_name = ALAUKI
open_cursors = 300
star_transformation_enabled= FALSE
query_rewrite_enabled = FALSE
pga_aggregate_target = 25165824
aq_tm_processes = 1
PMON started with pid=2
DBW0 started with pid=3
LGWR started with pid=4
CKPT started with pid=5
SMON started with pid=6
RECO started with pid=7
CJQ0 started with pid=8
QMN0 started with pid=9
Mon Jan 02 10:51:34 2006
starting up 1 shared server(s) ...
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
Mon Jan 02 10:51:45 2006
alter database mount exclusive
Mon Jan 02 10:51:45 2006
ORA-00202: controlfile: 'E:\RITESH\DATA\CONTROL01.CTL'
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
Mon Jan 02 10:51:48 2006
ORA-205 signalled during: alter database mount exclusive...
Shutting down instance (abort)
License high water mark = 3
Instance terminated by USER, pid = 604
can u pls give me a solution of error
Thanks in advance
Ritesh Patel
Message was edited by:
RITESH

this is my alert log file
starting up 1 shared server(s) ...
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
Mon Jan 02 14:21:01 2006
CREATE DATABASE ALAUKI
     USER SYS IDENTIFIED BY *     USER SYSTEM IDENTIFIED BY *     LOGFILE GROUP 1 ('E:\RITESH\DATA\REDO01.LOG') SIZE 100M,
          GROUP 2 ('E:\RITESH\DATA\REDO02.LOG') SIZE 100M,
          GROUP 3 ('E:\RITESH\DATA\REDO03.LOG') SIZE 100M
     MAXLOGFILES 5
     MAXLOGMEMBERS 5
     MAXLOGHISTORY 1
     MAXINSTANCES 1
     CHARACTER SET US7ASCII
     NATIONAL CHARACTER SET AL16UTF16
     DATAFILE 'E:\RITESH\DATA\SYSTEM01.DBF' SIZE 325M REUSE
     EXTENT MANAGEMENT LOCAL
     DEFAULT TEMPORARY TABLESPACE TEMPTS1
          TEMPFILE 'E:\RITESH\DATA\TEMP01.DBF' SIZE 20M REUSE
     UNDO TABLESPACE UNDOTBS1
          DATAFILE 'E:\RITESH\DATA\UNDOTBS01.DBF' SIZE 200M REUSE
          AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED
Mon Jan 02 14:21:02 2006
Database mounted in Exclusive Mode.
Mon Jan 02 14:21:36 2006
Successful mount of redo thread 1, with mount id 2260372877.
Assigning activation ID 2260372877 (0x86ba8d8d)
Thread 1 opened at log sequence 1
Current log# 1 seq# 1 mem# 0: E:\RITESH\DATA\REDO01.LOG
Successful open of redo thread 1.
Mon Jan 02 14:21:36 2006
SMON: enabling cache recovery
Mon Jan 02 14:21:36 2006
create tablespace SYSTEM datafile 'E:\RITESH\DATA\SYSTEM01.DBF' SIZE 325M REUSE
EXTENT MANAGEMENT LOCAL online
Mon Jan 02 14:22:11 2006
Completed: create tablespace SYSTEM datafile 'E:\RITESH\DATA
Mon Jan 02 14:22:11 2006
create rollback segment SYSTEM tablespace SYSTEM
storage (initial 50K next 50K)
Completed: create rollback segment SYSTEM tablespace SYSTEM
Mon Jan 02 14:22:16 2006
CREATE UNDO TABLESPACE UNDOTBS1 DATAFILE 'E:\RITESH\DATA\UNDOTBS01.DBF' SIZE 200M REUSE
          AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED
Mon Jan 02 14:22:38 2006
Created Undo Segment _SYSSMU1$
Created Undo Segment _SYSSMU2$
Created Undo Segment _SYSSMU3$
Created Undo Segment _SYSSMU4$
Created Undo Segment _SYSSMU5$
Created Undo Segment _SYSSMU6$
Created Undo Segment _SYSSMU7$
Created Undo Segment _SYSSMU8$
Created Undo Segment _SYSSMU9$
Created Undo Segment _SYSSMU10$
Undo Segment 1 Onlined
Undo Segment 2 Onlined
Undo Segment 3 Onlined
Undo Segment 4 Onlined
Undo Segment 5 Onlined
Undo Segment 6 Onlined
Undo Segment 7 Onlined
Undo Segment 8 Onlined
Undo Segment 9 Onlined
Undo Segment 10 Onlined
Successfully onlined Undo Tablespace 1.
Completed: CREATE UNDO TABLESPACE UNDOTBS1 DATAFILE 'E:\RITE
Mon Jan 02 14:22:39 2006
CREATE TEMPORARY TABLESPACE TEMPTS1 TEMPFILE 'E:\RITESH\DATA\TEMP01.DBF' SIZE 20M REUSE
Completed: CREATE TEMPORARY TABLESPACE TEMPTS1 TEMPFILE 'E:\
Mon Jan 02 14:22:40 2006
ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMPTS1
Completed: ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMPTS
Mon Jan 02 14:22:41 2006
SMON: enabling tx recovery
Mon Jan 02 14:22:44 2006
Errors in file e:\ritesh\alauki\udump\rits_ora_804.trc:
ORA-01501: CREATE DATABASE failed
ORA-01991: invalid password file 'D:\oracle\ora90\DATABASE\PWDrits.ORA'
Mon Jan 02 14:22:44 2006
Error 1991 happened during db open, shutting down database
USER: terminating instance due to error 1991
Instance terminated by USER, pid = 804
ORA-1092 signalled during: CREATE DATABASE ALAUKI
     USER SYS IDENTIFIED BY *     U...

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Copyright (c) 1997, 2009, Oracle. All rights reserved.
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Dear dba's
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'D:\APP\ADMINISTRATOR\ORADATA\NEWDB\DATAFILE\O1_MF_USERS_7FK0SKWB_.DBF',
'D:\APP\ADMINISTRATOR\ORADATA\NEWDB\DATAFILE\O1_MF_EXAMPLE_7FK0Z5LK_.DBF',
'D:\APP\ADMINISTRATOR\ORADATA\NEWDB\MARSH.DBF',
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CHARACTER SET AL32UTF8
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ORACLE instance started.
Total System Global Area 535662592 bytes
Fixed Size 1334380 bytes
Variable Size 301990804 bytes
Database Buffers 226492416 bytes
Redo Buffers 5844992 bytes
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ERROR at line 1:
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ORA-00210: cannot open the specified control file
ORA-00202: control file: 'D:\APP\ADMINISTRATOR\ORADATA\NEWDB\CONTROLFILE\CONTROLFILE_01.CTL'
ORA-27048: skgfifi: file header information is invalid
OSD-04001: invalid logical block size (OS 1413563730)
Fri Dec 09 13:11:59 2011
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Thanks & Regards,
John Marshal.A

Hi;
Error: ORA 205
Text: error in identifying control file <name>
Cause: The system could not find a control file of the specified name and
size.
Action: Either
Check that the proper control filename is referenced in the
CONTROL_FILES initialization parameter in the initialization parameter
file and try again.
When using mirrored control files, that is, more than one control file
is referenced in the initialization parameter file, remove the control
filename listed in the message from the initialization parameter file
and restart the instance.
If the message does not recur, remove the problem control file from
the initialization parameter file and create another copy of the
control file with a new filename in the initialization parameter file.
Regard
Helios

How to Create new database from cold backup files.

Dear Experts,
I have an oracle 10g databae on windows 2003 server.
The database is in Archive log mode and backup strategy is Taking cold backup ever night.
Backup steps:
shut down database.
copy data files, control files, redo logs, archive logs and parameter files to safe location.
Startup.
I have taken a backup at Tuesdaay 1AM and I have archive logs also.
On Wednesday, I want to Create a new database on another server with the available cold backup files and archive logs. I want to recover the database upto 4PM Wednesday. How can I do this.
I am not using control file auto backup or control file backup to trace.
Please help me how can I do this. I am new to oracle database Administration.
--Thanks

The steps :
shut down database.
copy data files, control files, redo logs, archive logs and parameter files to safe location -- you mean the alternate location for the new databaseare correct (except that I would say "alternate location for the new database").
If you do not have controlfile backups, you cannot either OPEN the database or RECOVER the database until and unless you CREATE the Controlfiles. You have to generate a CREATE CONTROLFILE script using a BACKUP CONTROLFILE TO TRACE from the Production serer and create the controlfile on the new server.
BEFORE the Startup, I would use
RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL;The "using backup controlfile" tells Oracle to continue attempting Recovery -- ie doing a RollForward -- till the last archivelog made available to it.
For the Recover command, you then keep applying the ArchiveLogs from the Tuesday 1am ColdBackup upto Wednesday 4pm.
Once you have applied the last ArchiveLog, you do an
ALTER DATABASE OPEN RESETLOGS;Here are my notes of doing a RollForward "Recovery" from a Cold Backup :
http://hemantoracledba.blogspot.com/2007/05/rollforward-from-cold-backup.html
If you are attempting all these steps on a different server from your current Production database, you should be safe.
Once you OPEN the database, you can use CREATE CONTROLFILE or the NID utility to rename the database.
If you are attempting to create the new database on the same server there are many other precautions you have to take and unless you have experience with cloning databases, I would advice you against doing so (only the RMAN DUPLICATE DATABASE command has a safer method of cloning a database).
Hemant K Chitale
http://hemantoracledba.blogspot.com

Trouble using asm instance for new database

I have an asm instance and am trying to create a new database that will use the asm storage. I'm using dbca to create the new database. This is a test system on windows so I'm using the asmtool -create flatfiles for disks with the asmallow_only_raw_disks parameter set to false.
If I have #SQLNET.AUTHENTICATION_SERVICES = (NTS) commented out in my sqlnet.ora, then I can't get into asmcmd:
ORA-01031: insufficient privileges (DBD ERROR: OCISessionBegin)
and dbca won't create the new database that uses asm because the dbca gets the same 01031 error when trying to create the control files for that database.
If I have SQLNET.AUTHENTICATION_SERVICES = (NTS) NOT commented out, the I can get into asmcmd, but I can't startup the databases using sys, even though I am sitting at the server,
AND, dbca won't create the new database that uses asm becuase the dbca can't start the instance
credential retrieval failure.
I'm in a catch 22. Something is not right with my system but I just can't seem to figure out what it is.
The asm instance does have a password file.

I let the dbca create scripts and am currently walking through the scripts. I think it's my asm database that is actually creating the problem. I did the orapwd and oradim manually and can startup nomount the instance just fine. The create database statement fails on creating the controlfile but it's saying it already exists. I suspected the dbca form wasn't giving me all the errors like it should.
Thanks for your suggestion on the password file.

How to create service for new database

i am working on 8i.i want to create new database instead of existing for which first service have to create.i had created parameter file and perform changes,now with oradim i am trying to create service but it is giving incorrect version bcaz i have win2000 and oradim works with winnt only.

Goodfire wrote:
I want after creation of a custom database to execute a script that will create a Network Service without having to go through the UI
Its just adding those 5 lines at tsnames.ora on the client dir
How can I do i through a script?
So I can plant it after Create DB script and have both in 1 step.
P.S.
The most obvious keywords on main SE don't return something for this so it worths adding it
keywords : how to create client network service from script oracleWrong approach.
Better: create database template and execute dbca in silent mode.
Also execute netca in silent mode as Harrison suggest.
PS: Adding the 5 lines to tnsnames.ora does not create a network service, first you have to set the "service_names" init parameter and the listener will create the service when the database starts (simplified explanation).
:p

Problems wit creating a new database on solaris wit dbca ORA 09925/ORA-1031

Hi Oracle users,
I'm using Oracle 10gR2 on Solaris and try to create a new database
instance.
I'm using dbca for that task. After making all the settings I get the error
ORA-09925 and then ORA-1031.
For the second error I found the advice to run te root.sh to be sure that
all user privileges for local logins are correct.
But tis didn't help.
Do you have an advice for me ?
Best regards,
Daniel

$ oerr ora 9925
09925, 00000, "Unable to create audit trail file"
// *Cause: ORACLE was not able to create the file being used to hold
//          audit trail records.
// *Action: Check the UNIX error number for a possible operating system error.
//          If there is no error, contact ORACLE customer support.
$                                   write permission problem or non-existent directory ?

Database level settings

Please advise database level settings for all our databases for following items:
Virtual Log File
Database file growth settings
- And suggest what are the best practices around these items that we need to follow for future new databases. What are different things to consider?
- And also what would we need to do before making these changes on current databases?
Thanks,

Can you refer the below link
https://www.simple-talk.com/sql/database-administration/sql-server-database-growth-and-autogrowth-settings/
http://www.sqlskills.com/blogs/kimberly/8-steps-to-better-transaction-log-throughput/
--Prashanth

Database cache settings for 4.13 on NT 4

The database cache settings and the documentation have always been
confusing.
I have about 35000 entries in my directory. If I have enough available ram
should I try to put all the entries into ram? The default setting is a 1000,
should I change it to 35000? Will I notice any great speed increases.
And the second setting has to do with index cache. Should I try to get that
into ram also? My id2entry.db2 file is about 40MBs. Should I change the
default from 10MBs to 40MBs? Will there be a significant increase in speed?
Thanks.

Thanks Russ H for your quick reply. I am still fairly new to FCP X coming from using FCE not iMovie.
The project I'm working on I had already started before posting yesterday. Is it possible to change the settings for what I have already done, or no I need to start all over again?
Thanks again
Matt

ORA-12154- during creation new database

Hi All,
when creating new database I I get this ora error ORA-12154 , Step : copying database files.
Could you please help ?
Thanks,

Hi,
ORA-12154:
     TNS:could not resolve the connect identifier specified
Cause:      A connection to a database or other service was requested using a connect identifier, and the connect identifier specified could not be resolved into a connect descriptor using one of the naming methods configured. For example, if the type of connect identifier used was a net service name then the net service name could not be found in a naming method repository, or the repository could not be located or reached.
Action:
- If you are using local naming (TNSNAMES.ORA file):
- Make sure that "TNSNAMES" is listed as one of the values of the NAMES.DIRECTORY_PATH parameter in the Oracle Net profile (SQLNET.ORA)
- Verify that a TNSNAMES.ORA file exists and is in the proper directory and is accessible.
- Check that the net service name used as the connect identifier exists in the TNSNAMES.ORA file.
- Make sure there are no syntax errors anywhere in the TNSNAMES.ORA file. Look for unmatched parentheses or stray characters. Errors in a TNSNAMES.ORA file may make it unusable.
- If you are using directory naming:
- Verify that "LDAP" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA).
- Verify that the LDAP directory server is up and that it is accessible.
- Verify that the net service name or database name used as the connect identifier is configured in the directory.
- Verify that the default context being used is correct by specifying a fully qualified net service name or a full LDAP DN as the connect identifier
- If you are using easy connect naming:
- Verify that "EZCONNECT" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA).
- Make sure the host, port and service name specified are correct.
- Try enclosing the connect identifier in quote marks. See the Oracle Net Services Administrators Guide or the Oracle operating system specific guide for more information on naming.

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