I'm new into Oracle, consider the below scenario and respond it accordingly.
I want to add 500GB data file at primary database side, but doesn't have space at standby database side. My STANDBY_FILE_MANAGEMENT is set to Auto.
We are using Oracle 10g and have 10 tablespaces defined for our Database which have 108 tables. Size of 108 tables is around 251 MB as seen during importing the dump. While creating these 10 tablespaces I used below parameters for allocation of space
SIZE 1M REUSE AUTOEXTEND ON NEXT 1M MAXSIZE 1M;
which set the initial space for 10 tablespaces to around 1032Kb each. Now my Question is after importing the dump , how the disk space for 10 tablespaces increases to 398 MB in total ?
Is there any relation of Tablespace disk space and Actual Data present in the tables ?
essentially create data fragmentation within the datafile resulting in the db having lots more space to write into but not actually freeing space, even if you shrink the file it doesnt free space or do a reorg?
We have as an example a DB with 2 billion rows of data in 1 table, no partioning just one large table.
We have worked out that we can probably delete 1 billion rows or even better only keep a rolling 3 month window of data.
What would be the suggestion on deleting this data and reclaiming the disk space to actually see additional disk space made available at the os level.
deleting the data and reclaiming the space.
Through reading it looks like it might be something like, delete, creating new table space partitions from this data. This in theory would create new a tablespace in newly created data files which would result in the data being reorganised and taking up less physical space and when completed you point to the newly created partitions and drop the old tables.
i have a tablespace with a datafile of 20g. now by mistake i delete the datafile and then try to delete the tablespace from EM but i got an error which says that data file is not present to delete
Now initially after deleting the file physically so then i check space by applying df -ah at os lvl so it didn't reclaim the space now i try to delete the tablespace from em so it gives me the above error. This might be due to tablespace existence. so how can i reclaim the space.
11.1.0.7
Is this the command to check the total size of disk space a database have used.
select sum(bytes) from dba_data_files;
Is the temp size included?
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?
I Configured an ASM instance and a disk group with two disk for normal redundancy.
> Here .. each disk is 2gb
The disk group has two disks...
SQL> select group_number, name, type, total_mb, free_mb
2 from v$asm_diskgroup;
GROUP_NUMBER NAME TYPE TOTAL_MB FREE_MB
------------ ------------------------------ ------ ---------- ----------
1 DATA NORMAL 4000 3898
as the group has two way mirroring (Normal redundancy) How much data (2 GB or 4 GB) can i keep in the disk group? My conception is I can keep 2 GB data in the disk group... (as the disk group keeps every extent in another disk as mirror)
In my environment Oracle database 11gR1 is running & dg is configured i.e >> 1 primary & 1 standby. In near future space issues will arise for standby. I want to create 1 more standby with max disk space, but how? Active dataguard is configured where report are generated from where & what changes should be made in Primary pfile & new standby pfile.
View 2 Replies View RelatedI am trying to find the space occupied on disk by the tablespaces of the database that contain tables, some (and not all) of whose columns are encrypted. My query is like this:
select distinct a.tablespace_name, file_name, bytes /(1024*1024*1024) File_Size_In_GB
from dba_data_files a, dba_tables b,
(select distinct owner, table_name from DBA_ENCRYPTED_COLUMNS) c
where
a.tablespace_name = b.tablespace_name and
b.owner = c.owner and
b.table_name = c.table_name
order by a.tablespace_name;
The output of the query is as shown in the attached file:
TABLESPACE_NAMEFILE_NAMEFILE_SIZE_IN_GB
DMS_DATAM:ORACLEORADATASPOPRODDMS_DATA_0044.DBF29.296875
DMS_DATAM:ORACLEORADATASPOPRODDMS_DATA_0045.DBF29.296875
DMS_DATAM:ORACLEORADATASPOPRODDMS_DATA_0051.DBF29.296875
DMS_DATAN:ORACLEORADATASPOPRODDMS_DATA_0012.DBF19.53125
[code]...
Since the output (under the heading Total Size of the tablespace) is probably the sum of all the datafiles returned by the query and is obviously incorrect, I have not given the rest of it. I also tried the following:
select distinct a.tablespace_name, file_name, bytes /(1024*1024*1024) File_Size_In_GB,
sum (bytes/(1024*1024*1024))over (partition by a.tablespace_name order by file_name) "Total Size of the tablespace"
from dba_data_files a, dba_tables b,
(select distinct owner, table_name from DBA_ENCRYPTED_COLUMNS) c
where
a.tablespace_name = b.tablespace_name and
b.owner = c.owner and
b.table_name = c.table_name
order by a.tablespace_name ;
[code]...
Here, the fig. under the heading "Total Size of the tablespace" are probably the sum of all the records returned by the query if distinct is not used i.e all the data file sizes returned by the query.
tune my query and get the desired results? I think this can be achieved by group by with rollup, cube, order by and grouping functions, but am not sure how to proceed. I know that I can get the results by using Enterprise Mgr. Console in 2 mins., but would still like to get the results with the queries.
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.
How do we find the free space in tablespaces in a standby database
View 4 Replies View RelatedWhat is difference when you issue a create controlfile with "standby" keyword on the primary database
ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/path/db_stby.ctl';
vs. creating a control using
ALTER DATABASE BACKUP CONTROLFILE to '/path/db_control.ctl';
what does ORACLE put into the standby control that is "extra"? ie. what is the difference between a standby control file and a normal control file?
select sum(bytes/1024/1024) from dba_segments where owner='IPPS';
Does the above finding means that IPPS has use up 'this amount' of space in the database from all his objects?
I want to change space allocation for character columns in my database, So it will store them as 'CHAR' and not 'BYTE'.my character set is
SQL> SELECT VALUE FROM V$NLS_PARAMETERS WHERE PARAMETER='NLS_CHARACTERSET';
VALUE
----------------------------------------------------------------
AL32UTF8
SQL> alter system set NLS_LENGTH_SEMANTICS='CHAR' scope=both;
System altered.I bounced the instance just to make sure
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
Connected to an idle instance.
SQL>
SQL>
SQL> startup
ORACLE instance started.
[code].....
And then I want to see that when I create a table with some varchar2 column,The space for it will be allocated by chars, and not by bytes! However, when I run a check of create table, this is what I get:
SQL> drop table check_char;
Table dropped.
SQL> create table check_char (some_name varchar2(10));
Table created.
SQL> select a.char_used
2 from all_tab_columns a
3 where table_name='CHECK_CHAR'
4 and a.owner='SYS';
C
-
B
SQL>
What is the reason for space allocation to remain in BYTES and not CHAR, or what else I can check?
I new to data guard concept.
I am using oracle 10g with data guard configured , I have primary ( A ) and standby database ( B ) .But because of some unavoidable conditions the primary database ( A ) got shutdown and was not starting , We shifted the standby database ( B ) at new location and changed it to primary with following command ,
startup mount;
alter database recover managed standby database finish;
alter database commit to switchover to physical primary;
shutdown;
startup;
This new primary ( B ) was open for end users for 2 days during which old primary ( A ) was shutdown .
I took the backup of ( B ) and restored it on A AND shutdown the B . Now A is acting as Primary database. Server B is shutdown . I want to change server B to standby database with A running as Primary .Is it possible ?
i have two tablespaces dictionary managed (SYSTEM,APPLSYSX) i tried to change to locally cause it will cause problem in future when trying to run OATM migration.i did it successfully on APPLSYSX,when i did it on system upon oracle procedure.i have to change all tablespaces to read only when i did that with tablespace APPLSYSD(alter tablespace APPLSYSD read only) i received errors
SQL> alter tablespace APPLSYSD READ ONLY;
alter tablespace APPLSYSD READ ONLY
*
ERROR at line 1:
ORA-01230: cannot make read only - file 636 is offline
ORA-01111: name for data file 636 is unknown - rename to correct file
ORA-01110: data file 636: '/vol5u/oracle/prddb/9.2.0/dbs/MISSING00636'
i have not this file on the OS
I checked and found we have disk that is assigned with 0 disk GROUP_NUMBER. What does that mean ? how to check if disk T1_ASM05 is been part of any disk group or not.?
SQL> select GROUP_NUMBER,NAME from v$asm_diskgroup;
GROUP_NUMBER NAME
------------ ------------------------------
1 DATA
2 FRA
SQL>
SQL> select GROUP_NUMBER,name,PATH from v$asm_disk;
GROUP_NUMBER NAME PATH
------------ ------------------------------ -------------------------
1 T1_ASM01 ORCL:T1_ASM01
2 T1_ASM02 ORCL:T1_ASM02
0 ORCL:T2_BACKUP01
0 ORCL:T1_ASM04
0 ORCL:T1_ASM03
0 ORCL:T1_ASM05
6 rows selected.
SQL> !
/home/oracle > /etc/init.d/oracleasm listdisks
T1_ASM01
T1_ASM02
T1_ASM03
T1_ASM04
T1_ASM05
T2_BACKUP01
/home/oracle >
Resize or add disk in ASM.
- The storage has partitions like:
- And now, the size of ASM disk was full
Because I've not ever done for adding disk to diskgroup.
Step 1- Format the storage, add partitions (I will create 4 partitions of 120gb, 1 partitions 60gb, 1 partitions 27gb).
Step 2- Add the rawdevice in /etc/sysconfig/rawdevices.In the picture here, I'll not just add rawdevice in /etc/sysconfig/rawdevices. So I'll do:
add lines in /etc/sysconfig/rawdevices
/dev/raw/raw7 /dev/cciss/c0d1p9
/dev/raw/raw8 /dev/cciss/c0d1p10
/dev/raw/raw9 /dev/cciss/c0d1p11
/dev/raw/raw10 /dev/cciss/c0d1p12
[code]....
how to do continue after step 5.
How can use the LV to create a ASM disk in Red Hat Linux As 5
#lvcreate -n lv01 -L 200g myvg
I have droped the tablespace like 60gb size. using following command
DROP TABLESPACE TS_MKT_CM_SERVICE_TB
INCLUDING CONTENTS AND DATAFILES;
but the space is not recliamed in disk. still i have same size in hard disk. how to reclim the space to hard disk..?
What is best practice to change small disk D:? I am beginner with Oracle. 10g on W2008. 5 datafiles (all indexes,second data file, 2 undotabs)*.dbf (34;30;1;34;12 GB) is on D:. Part of tablespaces (1 data, 1 undo)has files on c:.
I.
1.Shutdown 2008 server.
2.Copy D: image with GHOST to USB, network.
3.Connect new D, create RAID.
4.Restore image to D.
5.Start 2008 server.
II.
1.Stop application.
2.CONNECT AS SYSDBA
3.SHUTDOWN NORMAL or (IMMEDIATE)?
4.Copy files *.dbf at OS level from d: to ... USB disk, network.
5.Shutdown 2008 server.
6.Change disks, create RAID in BIOS.
7.Start W2008.
Is Oracle at this moment in SHUTDOWN mode?
8.Copy back *.dbf to new D: (with directory structure).
9.STARTUP Oracle.
I look after a team of DBAs and I have a request to free up space on our very expensive storage system. However the answers on how to do this differ and i'd like to ask for external input...So not being a techincal person I see the world as quite black and white. Meaning that you delete data and you free space but after doing much reading I understand this is not the case, as you essentially create data fragmentation within the datafile resulting in the db having lots more space to write into but not actually freeing space, even if you shrink the file it doesnt free space or do a reorg?
We have as an example a DB with 2 billion rows of data in 1 table, no partioning just one large table. We have worked out that we can probably delete 1 billion rows or even better only keep a rolling 3 month window of data. What would be the suggestion on deleting this data and reclaiming the disk space to actually see additional disk space made available at the os level.
How about deleting the data and reclaiming the space. Through reading it looks like it might be something like, delete, creating new table space partitions from this data. This in theory would create new a tablespace in newly created data files which would result in the data being reorganised and taking up less physical space and when completed you point to the newly created partitions and drop the old tables.
how they have done this as it must be a common problem that people have created some different solutions. What commands, procedures have been used?
I need to drop one of the schema with 700 tables. There are other schemas in same database and tablespaces are shared across.
How can I reclaim the disk space after dropping the particular schema?
What should be our approach when we see the disk response time is bad for a particular tablespace in database.I heard a good disk response time should be on an average 10ms.
View 2 Replies View RelatedI am working on ASM as i am bit confused to decide ASM Disk strategies in production Environments. For Ex:-
1.Normal Redundancy ( Allows 2 Mirror Groups ) :-
I have created Normal_DG Diskgroup with 4 Disks
Disk1-------------------
Disk2 ------- |
|--->FG2 ----> FG1
Disk3 ------- |
Disk4-------------------
According to my understanding , if Disk1 Fails Disk4 facilitates normal operations. When there is space crunch it operates in reduced redundancy . Am i right ?
2.I have got 4 Disks in one group (i.e from Disk1 To Disk4 ) i have not defined any failure group and as per my understanding all disks will be added to its own failure group without mirroring and striping.
What is the query to check disk space usage for oracle 10g ? What is the query to check percent of disk space usage for oracle 10g ?
View 1 Replies View RelatedI've installed GI 11.2.0.3 on AIX 7.1.And today I noticed strange ASM's behavior:
-bash-3.2$ getconf DISK_SIZE /dev/rhdisk2
*2285768*
-bash-3.2$ asmcmd
ASMCMD> lsdsk -k
Total_MB Free_MB OS_MB Name Failgroup Failgroup_Type Library Label UDID Product Redund Path
*188616* 68204 *188616* DATA_0000 DATA_0000 REGULAR System UNKNOWN /dev/rhdisk2
I guessed that was because of LUN size (it was exceed 2 TB)After that I dinamically shrinked LUN size on our external storage, rebooted and perfomed cfgmgr command on both nodes. But I still have no enough free space.
-bash-3.2$ getconf DISK_SIZE /dev/rhdisk2
*1992294*
-bash-3.2$ asmcmd
ASMCMD> lsdsk -k
Total_MB Free_MB OS_MB Name Failgroup Failgroup_Type Library Label UDID Product Redund Path
*188616* 68204 *1992294* DATA_0000 DATA_0000 REGULAR System UNKNOWN /dev/rhdisk2
I am storing customer's snaps in a table ( column's data type as LONG RAW) using oracle forms Webutil. Now there are 250 snaps in the table. The file type of these snaps is JPG with the average size 30KB.
I made a backup using export utility before storing these snaps and the exported DMP file's size was 36MB. Now after storing these just 250 snaps of 30KB the DMP file's size is gone over 300MB.
i need to change column's datatype? or some where in oracle forms's image item. Because on window's file system the size of these files is just 8MB.
I am having I/O issues if i create 20 GB DATAFILES on SMALL TABLE SPACE. guide me with the maximum size limit of data file that I can create in Windows 2003 32 bit server.
View 3 Replies View RelatedI have 2 schemas in my database with over 500 tables in each.i am trying to know which tables actually belong to which datafile in which tablespace.
View 2 Replies View Related