Sunday, February 17, 2013

Information about Oracle Background process


Information about Oracle Background Processes.

[oracle@localhost ~]$ echo $ORACLE_SID----->Display the name of the default database.
orcl

[oracle@localhost ~]$ ps -ax | grep orcl
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
 3608 pts/1    S+     0:00 grep orcl

solution: start orcledatase through commnad
[oracle@localhost ~]$ startoracle.sh

[oracle@localhost ~]$ ps -ax | grep orcl
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
 4101 pts/1    S      0:00 /u01/app/oracle/product/10.2.0/db_1/perl/bin/perl /u01/app/oracle/product/10.2.0/db_1/bin/emwd.pl dbconsole /u01/app/oracle/product/10.2.0/db_1/localhost.localdomain_orcl/sysman/log/emdb.nohup
 4126 pts/1    Sl     0:21 /u01/app/oracle/product/10.2.0/db_1/jdk/bin/java -server -Xmx256M -XX:MaxPermSize=96m -XX:MinHeapFreeRatio=20 -XX:MaxHeapFreeRatio=40 -DORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1 -Doracle.home=/u01/app/oracle/product/10.2.0/db_1/oc4j -Doracle.oc4j.localhome=/u01/app/oracle/product/10.2.0/db_1/localhost.localdomain_orcl/sysman -DEMSTATE=/u01/app/oracle/product/10.2.0/db_1/localhost.localdomain_orcl -Doracle.j2ee.dont.use.memory.archive=true -Djava.protocol.handler.pkgs=HTTPClient -Doracle.security.jazn.config=/u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/OC4J_DBConsole_localhost.localdomain_orcl/config/jazn.xml -Djava.security.policy=/u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/OC4J_DBConsole_localhost.localdomain_orcl/config/java2.policy -Djava.security.properties=/u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/home/config/jazn.security.props -DEMDROOT=/u01/app/oracle/product/10.2.0/db_1/localhost.localdomain_orcl -Dsysman.md5password=true -Drepapi.oracle.home=/u01/app/oracle/product/10.2.0/db_1 -Ddisable.checkForUpdate=true -Djava.awt.headless=true -jar /u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/home/oc4j.jar -config /u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/OC4J_DBConsole_localhost.localdomain_orcl/config/server.xml
 6640 ?        Ss     0:00 ora_pmon_orcl
 6642 ?        Ss     0:00 ora_psp0_orcl
 6644 ?        Ss     0:00 ora_mman_orcl
 6646 ?        Ss     0:00 ora_dbw0_orcl
 6648 ?        Ss     0:00 ora_lgwr_orcl
 6650 ?        Ss     0:00 ora_ckpt_orcl
 6652 ?        Ss     0:00 ora_smon_orcl
 6654 ?        Ss     0:00 ora_reco_orcl
 6656 ?        Ss     0:00 ora_cjq0_orcl
 6658 ?        Ss     0:00 ora_mmon_orcl
 6660 ?        Ss     0:00 ora_mmnl_orcl
 6662 ?        Ss     0:00 ora_d000_orcl
 6664 ?        Ss     0:00 ora_s000_orcl
 6705 ?        Ss     0:00 ora_p000_orcl
 6707 ?        Ss     0:00 ora_p001_orcl
 6736 ?        Ss     0:00 ora_qmnc_orcl
 6780 ?        Ss     0:00 ora_q000_orcl
 6783 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6786 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6789 ?        Ss     0:01 oracleorcl (LOCAL=NO)
 6791 ?        Ss     0:00 ora_q001_orcl
 6797 ?        Ss     0:02 oracleorcl (LOCAL=NO)
 6805 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6811 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6817 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6819 ?        Ss     0:00 oracleorcl (LOCAL=NO)
 6836 pts/1    S+     0:00 grep orcl

Getting Information about PGA,SGA,and components of SGA

[oracle@localhost ~]$ sqlplus / as dba

SQL*Plus: Release 10.2.0.1.0 - Production

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Usage 1: sqlplus -H | -V

    -H             Displays the SQL*Plus version and the
                   usage help.
    -V             Displays the SQL*Plus version.

Usage 2: sqlplus [ [<option>] [<logon>] [<start>] ]

  <option> is: [-C <version>] [-L] [-M "<options>"] [-R <level>] [-S]

    -C <version>   Sets the compatibility of affected commands to the
                   version specified by <version>.  The version has
                   the form "x.y[.z]".  For example, -C 10.2.0
    -L             Attempts to log on just once, instead of
                   reprompting on error.
    -M "<options>" Sets automatic HTML markup of output.  The options
                   have the form:
                   HTML [ON|OFF] [HEAD text] [BODY text] [TABLE text]
                   [ENTMAP {ON|OFF}] [SPOOL {ON|OFF}] [PRE[FORMAT] {ON|OFF}]
    -R <level>     Sets restricted mode to disable SQL*Plus commands
                   that interact with the file system.  The level can
                   be 1, 2 or 3.  The most restrictive is -R 3 which
                   disables all user commands interacting with the
                   file system.
    -S             Sets silent mode which suppresses the display of
                   the SQL*Plus banner, prompts, and echoing of
                   commands.

  <logon> is: (<username>[/<password>][@<connect_identifier>] | /)
              [AS SYSDBA | AS SYSOPER] | /NOLOG

    Specifies the database account username, password and connect
    identifier for the database connection.  Without a connect
    identifier, SQL*Plus connects to the default database.

    The AS SYSDBA and AS SYSOPER options are database administration
    privileges.

    The /NOLOG option starts SQL*Plus without connecting to a
    database.

  <start> is: @<URL>|<filename>[.<ext>] [<parameter> ...]

    Runs the specified SQL*Plus script from a web server (URL) or the
    local file system (filename.ext) with specified parameters that
    will be assigned to substitution variables in the script.

When SQL*Plus starts, and after CONNECT commands, the site profile
(e.g. $ORACLE_HOME/sqlplus/admin/glogin.sql) and the user profile
(e.g. login.sql in the working directory) are run.  The files may
contain SQL*Plus commands.

Solution:[oracle@localhost ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Tue Feb 5 06:57:19 2013

Copyright (c) 1982, 2005, Oracle.  All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>

2)
SQL> show parameter SGA_TARGET;----->Display total memory associate to SGA.

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
sga_target                           big integer 592M

3)SQL> show parameter DB_CACHE_SIZE------------>display db_cache_size

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_cache_size                        big integer 0

4)SQL> show parameter log_buffer;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
log_buffer 

5)
6)SQL> show parameter shared_pool_size;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
shared_pool_size                     big integer 0

7)SQL> show parameter large_pool_size;------------->Display total memory allocated to large pool    

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
large_pool_size                      big integer 0

8)
9)SQL> show parameter streams_pool_size;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
streams_pool_size                    big integer


Getting information about Data files, Redo log files, and control files

[oracle@localhost ~]$ cd /u01/app/oracle/oradata/orcl/--------->where orcl is the default database.
[oracle@localhost orcl]$ ls
control01.ctl  example01.dbf  redo03.log    temp01.dbf
control02.ctl  redo01.log     sysaux01.dbf  undotbs01.dbf
control03.ctl  redo02.log     system01.dbf  users01.dbf

where,
*.ctl------------>Control files
*.dbf------------>data file
*.log------------->redo log file

Getting Information about Initialization Paramater file and password file.

[oracle@localhost db_1]$ cd /u01/app/oracle/product/10.2.0/db_1/dbs
[oracle@localhost dbs]$ ls
hc_orcl.dat   init.ora      lkTRNDB     spfileorcl.ora
hc_trndb.dat  initorcl.ora  orapworcl   spfiletrndb.ora
initdw.ora    lkORCL        orapwtrndb

where,
spfileorcl.ora---------->Initialization parameter file
orapworcl---------------->password file


Getting Information about Archieved redo log files and Backup files.

[oracle@localhost ~]$ cd /u01/app/oracle/flash_recovery_area/
ORCL/  TRNDB/
[oracle@localhost ~]$ cd /u01/app/oracle/flash_recovery_area/ORCL/
[oracle@localhost ORCL]$ ls
archivelog  onlinelog

where,
archivelog---------->directory contains Archieved redo log

[oracle@localhost ORCL]$ cd archivelog/
[oracle@localhost archivelog]$ ls
2012_05_22  2012_07_24  2012_07_28  2012_09_21  2012_10_17  2013_02_05
2012_06_21  2012_07_25  2012_08_04  2012_09_29  2012_10_18

Getting Information about Alert log file.

[oracle@localhost ~]$ cd /u01/app/oracle/admin/orcl/bdump/
[oracle@localhost bdump]$ ls
alert_orcl.log      orcl_arc1_6801.trc  orcl_lgwr_6606.trc  orcl_p000_6720.trc
orcl_arc0_6218.trc  orcl_arc1_7310.trc  orcl_lgwr_6622.trc  orcl_p000_6741.trc
orcl_arc0_6586.trc  orcl_arc1_7698.trc  orcl_lgwr_6623.trc  orcl_p000_6770.trc
orcl_arc0_6638.trc  orcl_arc1_9114.trc  orcl_lgwr_6648.trc  orcl_p000_6826.trc
orcl_arc0_6667.trc  orcl_arc1_9783.trc  orcl_lgwr_6651.trc  orcl_p000_6837.trc
orcl_arc0_6691.trc  orcl_arc2_6590.trc  orcl_lgwr_6669.trc  orcl_p001_3813.trc


Creating Database

[oracle@localhost ~]$ dbca

welcome to Database configuration Assistant for oracle database---------press next
select the operation that you want to perform--->create a databse----->next
select a templete from the following list to create a databse--------->General purpose---->next
database identification:
Global Database Name:trndp.san.com----------next

Management Option:
[leave as default]
[] configure the database with enterprise manager
 (.)use database control for database management.
 press next

Database credentials
password:<passwor>

storage option:
.File System then clieck next

database file location
. use databse file locations from template.

recovery configuration
ü  specify flash recovery area
Flash recovery Area:{RACLE_BASE}/flash_recovery_area
Size:2048
tick----enable archiving

database content: leave as default

Initialization Parameter
Memory:typical
character:default
connection mode:Dedicated Server Mode

Database storage
click next

12.creating options:
ü  create databse then click finished


Modifying/configuring Oracle Database
[oracle@localhost ~]$ dbca
1)welcome:next
2)operation:configure database options
3)database:<choose the database you want to change> eg trndp
4)database content: next
5)conncetion mode :Dedicated server mode then change to shared server mode

then click ok, ok
shared server : 1

Deleting a database.
[oracle@localhost ~]$ dbca
1)welcome: next
2)operation: delete a databse
3)database : <choose the database you want to delete> eg trndp
then finish---ok


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