To Add One Disk Group Space To Another Disk Group
May 9, 2011Is there any way to add one disk group space to another disk group. Because One of my disk group is full i want to add space in to that group.
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Adding ASM Disk With Header Status MEMBER To Existing Disk Group
Aug 26, 2010We have a Production Oracle 10g R2 RAC on HP-UX v2 IA64 servers.We have Two Disk Groups one for Archive (ARC_DISK - 100 GB) and other for Database(DATA_DISK - 1 TB]. We wanted to add more space to the DATA_DISK disk group.Unix admin configured 200 GB from SAN and changed the ownership of the Disk to oracle and permissions to 775 on 1st Node.I opended DBCA from 1st Node and was able to see the disk in 'Show Candidate'.
I added this disk to the DATA_DISK disk group and clicked OK but got ORA- error with some message like some operations could not be performed. I exited DBCA.We realized that we had forgotten to change the ownerhip and permission from the 2nd Node.Unix admin changed the ownership of the Disk to oracle and permissions to 775 on the 2nd Node.
I opened DBCA again from 1st Node and selected the DATA_DISK disk group but could not find the Disk in 'Show Candiate' open. I clicked on 'Show All' and this disk was shown with Header_Status - MEMBER but not allocated to DATA_DISKGROUP. When I clicked the 'Show Member' option, this disk is not shown for DATA_DISK disk group. I exited DBCA at this point.As this is a critcal Production database I didnt proceed any further and exited DBCA.
Now I need to add this Disk to the DATA_DISK disk group but not sure which option to select. I got one reply from another forum to run DBCA select the DATA_DISK Disk Group and then click 'Show All' and select this Disk (which already has MEMBER as Header Status) and select Force Option and click OK to continue.
Server Administration :: Disk Group With Two Disk For Normal Redundancy
Jan 16, 2013I 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)
RAC/ASM Clusterware Installation :: Resize LUN And Disk Group
Jan 7, 2013I have a small problem resizing an ASM disk group . I've had a lun with size 50G and added on it an asm disk called LUN1D1. Then I have created a DISK GROUP called data1 (external) witch contain LUN1D1. DATA1 was then made asm volume. So I have an asm volume with size 50G and I need it to be 100G.
Now I have increased the size of the lun with 50G (100G in total). I have rescanned the LUN and os see the new size. The problem is I can not re size DISK GROUP data1 or disk LUN1D1.
Orale Database 11.2.0.3.0 x64
Server Administration :: ASM / Dropping A Newly Created Disk Group?
Apr 6, 2012I was setting up disks groups and I accidentally created one group (DATA) with "NORMAL" redundancy but wanted it to be "EXTERNAL". I tried using asmca to remove disks from the group, drop the group, change the redundancy..... All of this failed because there was an spfile on the disk group.
I finally got it to work with using this procedure:
sqlplus '/ as sysasm'
SQL*Plus: Release 11.2.0.3.0 Production on Thu Apr 5 08:58:19 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
SQL> drop diskgroup DATA;
drop diskgroup DATA
*
ERROR at line 1:
ORA-15039: diskgroup not dropped
ORA-15053: diskgroup "DATA" contains existing files
[code]....
In summary, I am not sure why changing the redundancy would be so difficult if there is data on the disk group.
Automatic Storage Management :: Normal Redundancy Disk Group
Oct 3, 2013One of my collegues created an ASM disk group with normal redundancy using 2 disks. But the disks are not of same size, one disk is 100GB and another one is 10GB. Now the usable space out of diskgroup is showing 55GB. When I checked the diskgroup properties it is showing 2 fail groups one is DATA1_ 0000 with 10GB and other is DATA_0001 with 100GB. My question is why it is showing 55GB as usable space? My assumption is as it is having 2 fail groups with different disks of different sizes. For the failgroup 2 even it is of 100GB size, in order to maintain the redundancy with other small FG(10G) it will consider only 10GB out of 100GB. So, the 2nd FG size also should be 10GB. So that the usable space should show as 10GB as opposed to 55GB (not (100+10)/2).
View 12 Replies View RelatedReal Application Clusters :: Multiple Disk Group Pros / Cons
Jul 8, 2013i am trying to identify the pro's/con's of using multiple ASM Diskgroup. I understand oracle recommends/best practice is to have 2 DG (one data and one flash) and you can place multiple copies of control files/online redo logs(and thats the way i want to go). But would that same be true if i use different set of DISK. For example we have multiple RAID 10 devices and multiple of SSD devices for us that we can use for this ASM instance. And i was thinking to create 2 more Disk group (call it DG_SYS1 and DG_SYS2) and use that to put my online redo logs, control file and temp and system table space there. i understand in a standalone system(where regular file system is being used), they(online redo/ control file) are usually on there own drives, but with ASM when i am already using external RAID 10 config + ASM striping i assume the IO would faster or am i better of using the SSD that i can have for my redo/control? What would be the pro's/cons of it (besides managing multiple DG)..
View 7 Replies View RelatedAutomatic Storage Management :: Adding Disks To Existing Data Disk Group
Jun 19, 2012I have 11.1.0.7 instance running and got more 300G of storage available for the database. I would like to know what are the steps to add these disks/storage to the existing DATA asm disk group?
View 5 Replies View RelatedAutomatic Storage Management :: Multiple Database On Same Machine - Identify Disk Group?
Jan 21, 2013Db : 11.2.0.3
Os :Aix
We have 3 database under an ASM on same machine.Each db has 2 disk group's.
Db Name :DT6
DT6_DATAGROUP01/
DT6_REDOGROUP01/
Db Name :DT7
DT7_DATAGROUP01/
DT7_REDOGROUP01/
Db Name :DT8
DT8_DATAGROUP01/
DT8_REDOGROUP01/
How these database instance correctly identify the disk group? Can we use two database instance for One disk group?
How To Create Ocr Disk Or Voting Disk On Windows Server 2008
Feb 17, 2011I have 2 servers both having windows server 2008 64 bit as operating system installed on both I need to install oracle clusterware 11g r1 on both servers with clustering on external storage. I have configured the network(private,public and virtual) for both servers and have started the installation.
In the installation of oracle I add both servers but then I reach to a point where they ask me for voting disk or ocr disk in the cluster configuration storage but no disk is present how can i create ocr disk or voting disk on windows server 2008? And the external storage should I buy a special type of storage that supports clustering to continue my work?
Recliam The Space In Hard Disk
Nov 26, 2010I 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..?
Total Disk Space Used By A Database
Sep 27, 201211.1.0.7
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?
Reclaiming Actual Physical Disk Space
Sep 2, 2011I 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?
SQL & PL/SQL :: Drop Schema And Reclaim Disk Space?
Jun 29, 2011I 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?
Query To Check Disk Space Usage For Oracle
Apr 21, 2010What 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 RelatedRAC/ASM Clusterware Installation :: Checking Free Disk Space On OS And ASM Bug?
Jul 9, 2012I'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
Data Guard :: How To Create Another Standby With Max Disk Space
Nov 1, 2012In 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 RelatedSQL & PL/SQL :: Find Total Space Occupied On Disk By Tablespaces Of Database
Nov 3, 2010I 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.
Server Administration :: Reclaiming Actual Physical Disk Space?
Sep 3, 2011essentially 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.
Calculate Total Disk Space Used By Oracle Databases Across Whole Company?
Oct 18, 2013If we want to know the number of instances, number of RAC databases and whole total disk space used by oracle (not file system size),1. Any script can be ran from OEM grid control against all instances/databases? or2. we have a repository unix server which has all tnsnames of whole databases, any script we can run from there?
View 5 Replies View RelatedServer Administration :: Disk Space When Add Data File On Primary Database?
Jun 24, 2013I'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.
Server Administration :: Any Relation Of Tablespace Disk Space And Actual Data Present In Tables
Aug 16, 2012We 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 ?
Group Records With Less Than One Hour Separation And Count How Many Per Group
Nov 1, 2013I'm trying to group sets of data based on time separations between records and then count how many records are in each group.
In the example below, I want to return the count for each group of data, so Group 1=5, Group 2=5 and Group 3=5
SELECT AREA_ID AS "AREA ID",
LOC_ID AS "LOCATION ID",
TEST_DATE AS "DATE",
TEST_TIME AS "TIME"
FROM MON_TEST_MASTER
WHERE AREA_ID =89
AND LOC_ID ='3015'
AND TEST_DATE ='10/19/1994';
[code]....
Group 1 = 8:00:22 to 8:41:22
Group 2 = 11:35:47 to 11:35:47
Group 3 = 15:13:46 to 15:13:46
Keep in mind the times will always change, and sometime go over the one hour mark, but no group will have more then a one hour separation between records.
SQL & PL/SQL :: Combining Rownum And Group By Gives - Not A Group By Expression
Jun 23, 2011I read that rownum is applied after the selection is made and before "order by". So, in order to get the sum of salaries for all employees in all departments with a row number starting from 1, i wrote :
select ROWNUM,department_id,sum(salary) from employees group by department_id
If i remove rownum, it gives the correct output. Why can't rownum be used here ?
SQL & PL/SQL :: Group Through Expression Inside Group By?
May 17, 2011Refer to the txt file to create table and insert data.
I executed the following query-
SELECT priority, detail, COUNT(1) FROM TEST GROUP BY priority, detail
and got the following result-
PRIORITYDETAIL COUNT(1)
StandardPatch 27
StandardInitial TSS 1
StandardInitial development 10
StandardProduction deployment5
High PriorPatch 1
Now I want that Initial TSS and Initial development should be combined as Initial together and I should get the result as follows:
PRIORITYDETAIL COUNT(1)
StandardPatch 27
StandardInitial 11
StandardProduction deployment5
High PriorPatch 1
Migrate To Another Disk
Nov 15, 2006Lets say I have an oracle setup on C: and I decided to delete the oracle in c: and setup a whole new oracle at E: but I want all the data migrate to the new oracle installation in E: How can I perform that?
View 1 Replies View RelatedDifference Between ADD DISK And ADD VOLUME
May 27, 2013I have a question about the ADD VOLUME command, I can't understand the difference between ADD DISK and ADD VOLUME.What are the difference between them?When should I use each one?How can I control the stripping and mirroring (NORMAL and HIGH) adding VOLUMES in a DISKGROUP?Can I add a volume to a fail group?
View 1 Replies View RelatedCreate ASM Disk Using OracleASM
Jun 2, 2012I'm trying to create a ASM disk using oracleasm.I created list the disk (using oracleasm), but the view V$ASM_DISK and ASMCMD (lsdsk command) can't see it..Look:
CODE$ oracleasm createdisk DISK3 /dev/sdc1
Writing disk header: done
Instantiating disk: done
CODE$ oracleasm listdisks
DISK1
DISK2
DISK3
Looks fine, but the ASMCMD doesn't listing it...
CODEASMCMD> lsdsk
Path
/dev/oracleasm/disks/DISK1
/dev/oracleasm/disks/DISK2
And the V$ASM_DISK can not...
CODESQL> select name from v$asm_disk;
NAME
------------------------------
DATA_0001
DATA_0000
ASM Disk-groups / RAID?
Feb 25, 2011We have a new implementation which will be using ASM with RAID. The data area needs to be 3TB, and the recovery area, to be used for archive logs and RMAN backups, needs to be 1TB.
The configuration i'm thinking about now is:
+DATA diskgroup: 5*600G disks, using RAID 1+0 (this will include control files)
+FRA diskgroup: 2*500G disks, using RAID 1
+LOG diskgroup: 2*1G disks, using RAID 1 (this is only for redo logs)
So here are my questions:
1. Am I right in supposing that we would get the best performance on the +FRA and +LOG diskgroups by not using RAID 1+0?
2. It has already been agreed to use RAID 1+0 for the +DATA diskgroup, but I can't see the added benefit of this. ASM will already stripe the data, so surely RAID 0 will just stripe it again (i.e double striping the data). Would it not be the better just to mirror the data at a hardware level?
RMAN Disk / Tape?
Apr 25, 2011I just made the swich to have my RMAN backup directly to tape and here are the parameters I have set.
CODECONFIGURE DEFAULT DEVICE TYPE TO 'SBT_TAPE';
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%F';
CONFIGURE DEVICE TYPE 'SBT_TAPE' PARALLELISM 4 BACKUP TYPE TO BACKUPSET;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
[code]...
When I do an active clone I need to set my parameters back to the following in order to makeit work.
CODECONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
[code]....
Instead of un-doing my RMAN TAPE settings, is there something I can do in my active clone script to tell it read/write from/to disk instead of tape. I tried allocatiing disk channels but was unable to get my script to work. The only way it worked was to back out all the tape settings and put everything back to disk.
CODErman catalog=rman/rman@prod target=sys/sys@prod << EOT
connect auxiliary sys/sys@dev
duplicate target database to dev from active database nofilenamecheck
pfile=/u01/app/oracle/product/11g/dbs/initdev.ora;
exit