Server Administration :: System TableSpace Is So Big?
Sep 26, 2011Today I see my system tablespace is 98%, 480 MB used. Why the system tablespace is so big?
View 5 RepliesToday I see my system tablespace is 98%, 480 MB used. Why the system tablespace is so big?
View 5 RepliesIn my database ,the size of the system tablespace is 1024M.now i found its free space is 477.875M.
SQL> SELECT TABLESPACE_NAME,SUM(BYTES)/1024/1024 M FROM DBA_FREE_SPACE where tablespace_name = 'SYSTEM' GROUP BY TABLESPACE_NAME ;
TABLESPACE_NAME M
--------------- -------
SYSTEM 477.875
In system tablespace ,the max size segment is IDL_UB1$,it is 167M
SQL> SELECT SEGMENT_NAME, SX || 'M' "Size" FROM (SELECT SEGMENT_NAME,SUM(BYTES)/1024/1024 SX FROM DBA_SEGMENTS WHERE TABLESPACE_NAME = 'SYSTEM' GROUP BY SEGMENT_NAME) WHERE SX > 100 ORDER BY SX DESC;
SEGMENT_NAME Size
------------- -----
IDL_UB1$ 167M
QUESTION: what's the table IDL_UB1$ used for ?
My system tablespace size is 800mb and it sends an alert saying that it has exceeded 80% of its usage.However its total max size is 30gb.
FYI
Its autoextensible is set to 'YES'.
2 Node RAC database.
File system is ASM
My question here is... is it advicable to resize a system tablespace to some size when autoextensible is set to 'YES'
or genrally can we resize a system tablespace when autoextensible is set to 'No' ?
SQL> col FILE_NAME format a40
SQL> /
FILE_NAME BYTES/1024/1024 AUT MAXBYTES/1024/1024
---------------------------------------- --------------- --- ------------------
+DATA/ge01114/datafile/system.556.2254454 800 YES 30000.9844
The SYSTEM tablespace refuses to autoextend (3 segments in SYSTEM tablespace unable to extend). It sits on its current size of 559MB (auto set to 2GB, increment 10M).
I guess there are no free extends that are that big as 10M.
how to reduce the system tablespace size
my system01.dbf size is 6gb
i want reduce from 6gb to 2gb
I want to OFF tablspace AUTOEXTEND on a prodution system, we have many RAC databses and that will be done on all stations. i have got a document from net which was written on 29-Jun-2007 and it says that if need to OFF the AUTOEXTEND of a TABLESPACE so you need to ist make it off on the underlying datafiles of that tablespace so this doc is for Oracle 8.1.7.2.0
View 2 Replies View RelatedI want to remove a tablespace with it's datafile.
I've ran: DROP TABLESPACE x_tbs INCLUDING CONTENTS;
I've read(should have read it prior to action) [URL]tm
and I understand now that I should have stated "AND DATAFILES", However, too late now. the tablespace is removed, but the datafile x_tbs is still present in a folder of my OS.
Is it safe to manually remove it by deleting it from the operating system?
what is the Minimum datafile size required for creating a non-system tablespace?
I am trying to create a tablespace by giving the syntax like,
SQL> create tablespace t1
2 datafile '/home/data/t1.dbf' size 72k;
create tablespace t1
*
ERROR at line 1:
ORA-03214: File Size specified is smaller than minimum required
SQL> create tablespace t1
2 datafile '/home/data/t1.dbf' size 73k;
Tablespace created.
The blocksize for my database is 4096, as i have heard that the minimum size of the datafile is decided by blocksize, but i want to know that how it is calculated as by giving the above syntax the other values will be default. I am trying the syntax in oracle 9.2.0.1.0 version.
i have a tablespace which contains 121 datafile(max limit reached) as a dba what we have to do?
creating a new tablespace with a datafile and assign the users to the current tablespace which i created now.iif the above process is correct,after some time the tablespace which was filled up got freed up.now can i give the access to the users previous (i.e. freed up tablespace) and current tablespaces
My database version is
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for Linux: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
My os version is
Linux damdat01 2.6.18-128.7.1.el5 #1 SMP Wed
Aug 19 04:00:49 EDT 2009 x86_64 x86_64 x86_64
GNU/Linux
My database is OLP system.
My question is what are the advantages and disadvantages having one single tablespace versus multiple tablespace?
Easy to maintain when you have single tablespace. but hard to track the IO issues if you have one single tablespace.
I have one database which is recently upgraded from oracle 8.1.5 to oracle 10.2.0.4.The database is having around 300 tablespace and total size of the database is 1.5 TB.
The database was created in oracle 8i and all the teblespace were DMT(Dictionary Managed Tablespace) .Usually after up gradation all the tablespace are in DMT mode. Now my requirement is to convert all the tablespace into LMT (Locally Managed Tablespace) so that I can AVAIL ALL THE FEATURES OF LMT.
This database is a mission critical database and very less downtime can be allowed.
that's what I did:
SQL> select profile from DBA_USERS where username = 'SYSTEM';
PROFILE
------------------------------
DEFAULT
SQL> alter profile DEFAULT limit password_life_time UNLIMITED;
Profile altered. But I get still the warning message every login. ORA-28002: the password will expire within 7 days.
$ sqlplus system/oracle111@XE
SQL*Plus: Release 11.2.0.2.0 Production on Mon Aug 27 10:29:03 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
ERROR:
ORA-28002: the password will expire within 7 days
Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production
Can I use OFA and Raid system together for Oracle 11g in Windows 2008 Server? I am installing the OS in C drive. Where to install the oracle, location for Oracle_Base, number of logical and physical drive required, size of each etc.
I am planning to use
Raid 1 - Controlfile, redolog file and archive log file
Raid 1+0 - Datafiles
Also I want to multiplex virtual memory page also.
There are some sys views can not found. why?
SQL> connect / as sysdba
Connected.
SQL> show user;
USER is "SYS"
SQL> desc dba_users;
ERROR:
ORA-04043: object dba_users does not exist
Here is an article to show a case when SYS password is changed by SYSTEM:
[URL]....
This behavior is not working on all the environments.
I mistakenly added a datafile to a tablespace which is asm, however the datafile was created in a default location and not the asm location:
alter tablespace pdaiidata1 add datafile '<filename>' size 2048M;
What I should have done:
alter tablepsace <tablespace_name> add datafile '+DATA1' size 2048M;
Is there any way to move this filesystem datafile into the asm tablespace? In previous Oracle versions, I've taken a tablespace offline, moved a datafile, renamed it, then brought the tablespace back online. Can I do something similar here in this situation?
a newbie dba here..
select TABLESPACE_NAME,
sum(BYTES) Total_free_space,
max(BYTES) largest_free_extent
from dba_free_space
group by TABLESPACE_NAME
/
result output is attached .txt file.
the SYSTEM & USERS table space shows only <10 mb free space. Is it a bad sign? What I should do ?
Recently i am installed oracle9i in my laptop.In oracle scott/tiger accessing. But system/manager not accessing.
View 4 Replies View Relatedi'm a student currently learning database administration security.
I need to create a tablespace for administration of database but i don't know what datafile settings are best suited for admin usage.
I have attached the schema that was given to me for this assignment.
We had a new outsourcer who completed migration of 1 of our system running under Oracle10g-Solaris 10. We created an inventory script that will list all objects counts of SYS, SYSTEM and ORACLE and all other schemas. This script will be ran before (old server) and after migration (to new server). After migration to the new & bigger server, we noticed from the output of the inventory script for SYS/SYSTEM object counts had been reduced compared from the original/actual value (from the old server). Our outsourcer said that this is not an issue since SYS/SYSTEM objects are not transactional and cannot be controlled.
As we will conform that the migration was completed successfully by our new outsourcer.
we are doing database upgradation 10g2 to 11gr2, while doing pre check before upgrdation ..we have found few duplicate objectes on sys and system schema..
SQL> column object_name format a30
select object_name, object_type
from dba_objects
where object_name||object_type in
(select object_name||object_type
from dba_objects
where owner = 'SYS')
[code]...
As per metalink note "How to Clean Up Duplicate Objects Owned by SYS and SYSTEM Schema [ID 1030426.6]"..
im going to do drop only below objects ..
DROP TABLE SYS.HELP;
DROP INDEX SYS.HELP_TOPIC_SEQ;
DROP TABLE SYSTEM.PLAN_TABLE;
and ignore below objects ...
DROP TABLE SYSTEM.AQ$_SCHEDULES;
DROP INDEX SYSTEM.AQ$_SCHEDULES_PRIMARY;
DROP PACKAGE SYSTEM.DBMS_REPCAT_AUTH;
DROP PACKAGE BODY SYSTEM.DBMS_REPCAT_AUTH;
I had newly installed oracle 11g database, for testing & learning purpose.
Don't know wht happen to it after successfull installation , I am not able to start database.
Following error is appearing, how to resolve this.
Ora-01078:failure in processing system parameters
I can do only login to idle instance.
We are in the process of gaining some space in our database. We identified a tablespace that occupied around 400GB of space. The datas are required for us. Hence, we truncated (with drop storage) the tables, gathered statistics and shrinked the tables. After doing that we found the datafile occupied around 32GB of space. We tried to resize it to 5 GB and we got "ORA-03297: file contains used data beyond requested RESIZE value". We could see that size in dba_free_space against that tablespace. We would like to give back everything to OS.
We also tried exporting the tablespace without rows, dropped the tablespace and re-created and imported again. But the datafile grows to around 32G and we are unable to resize it.
We are sure that the tablespace has only the table definitions without data. But we do not know why is it occupying around 32G of space and we could see that size in dba_free_space. We would like to give back everything to OS. How can we do that?
In normal days size of archives generated in a day is 14-15GB. But since yesterday morning, almost 150GB of archives have been generated and are still getting generated(200MB every 1-2 minutes).
There was a sudden reboot of server yesterday morning. At that time there was heavy load of transactions on database. Can it be a reason that smon is still doing recovery? (I am not sure on this). Also, Undo tablespace is increased from 18 GB to 50 GB since yesterday (autoextend on).
Now we are running out of space for archive file system (can't delete them also until they are transferred to DR) Size of redo log is 200MB. This database supports around 2500 users.
performance wise I don't see any hit. Also wait events are normal. (only few db file sequential read) finding the query/session which are causing this much huge amount of archives?
1. I installed oralce with Service_Name=DB1 it works fine,
2. I created another database with dbca named DB2,
3. I connected both system/password@db1 and system/password@db2 without any problem,
4. After rebooting the computer I can connect only the first database DB1 which I installed with Oracle installation. But, I can not connect to the 2nd database which I created with dbca. Error Message Shows: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
DB1 has no problem I can connect to that, but I can not connect to DB2 after rebooting the system. Now I need to know how to connect to DB2.
Quote:
connection messages:
oracle@pc ~]$ sqlplus
SQL*Plus: Release 11.1.0.6.0 - Production on Thu Oct 21 12:51:43 2010
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Enter user-name: SYSTEM@DB1
Enter password:
[code]....
I have a small problem with creating the SPFILE,
These are the commands i had issued :-
1. startup nomount
2. create SPFILE from PFILE ;
Then i got an error :-
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file 'C:ORACLEORA92DATABASEINITORCL.ORA'
Ever since this happened i am unable to connect to ORACLE under any schema !
I get the following error : -
SQL> conn scott/tiger
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Warning: You are no longer connected to ORACLE.
WHY DOES THIS HAPPEN AND HOW CAN I OVERCOME IT ?
dbca -silent -deleteDatabase -sourceDB TEST
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00132: syntax error or unresolved network name 'LISTENER_TEST'
also tried to start the same instance and i get these messages - i did not created these oracle instance just trying to remove it and recreating it
SQL*Plus: Release 11.2.0.3.0 Production on Mon Nov 5 15:34:41 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00132: syntax error or unresolved network name 'LISTENER_TEST'
SQL> exit
Disconnected
I want to get the details of the SYS/SYSTEM users logon and Logoff's time.
Steps 1:
=======
SQL> SHOW PARAMETER AUDIT
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest string C:ORACLEPRODUCT10.2.0ADMIN
DB10GADUMP
audit_sys_operations boolean FALSE
audit_trail string NONE
SQL>
Step 2:
=======
Set the Necessary parameters:
-----------------------------
alter system set audit_trail=db scope=spfile;
Step 3:
=======
Shutdown the DB
Step 4:
=======
Restart the DB
Step 5:
=======
For auditing the Session. Fire the below command.
AUDIT CREATE SESSION;
Step 6:
=======
select DISTINCT USERNAME,os_username,timestamp,logoff_time
from DBA_audit_session;
When I fire the above query, I couldn't get the SYS user's LOGOFF time. But for rest of the users, I am getting.
Which is the best possible way of configuring the Physical file structure in case of Data Warehouseing application?
I mean to ask you Multiplexing of the data file or control file is required. Or any best possible way to configure Physical file structure.
I successfully created a DB manually with PFILE.
I want the DB to startup with SPFILE at next login.So i fired the below command.
CREATE SPFILE='path/SPFILEPRAGAT.ORA' FROM PFILE='path/file.ora'.
But it shows the error as below:
ORA-01078: failure in processing system parameters
ORA-27040: file create error, unable to create file
OSD-04002: unable to open file
O/S-Error: (os 123) The filename, directory name,or volume label syntax is incorrect.