DG Physical Standby add new data file

Question

Hi all,
11.2.0.1
I am adding new filesystem for my Primary database tablespace TEMP and UNDO in "/u51/oradata/PROD/temp02.dbf"  and "/u51/oradata/PROD/undots02.dbf"
Do I need to create its counterpart folder at my Standby database?
Thanks,
petra k

Answer 1

f55237a7-2c38-4db3-a7a3-1d77256f0730 wrote:
Thanks Mahir,
You  are welcome!
At Primary DB:
SQL> show parameter UNDO
NAME                                 TYPE        VALUE
undo_management                      string      AUTO
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1
At Standby DB:
SQL> show parameter UNDO
NAME                                 TYPE        VALUE
undo_management                      string      AUTO
undo_retention                       integer     900
undo_tablespace                      string      UNDOTBS1
if you want database use new UNDO tablespace, then you must change UNDO_TABLESPACE parameter to <NEW UNDO  TABLESPACE>
Note, that they have the same config parameter values:
So when I got space problem when both UNDOTBS1 and TEMP is blowing up making the filesystem /u49  100% full
I want to create new UNDOTBS2 and TEMP2 on a new filesystem  /u50. I will also just create the folder both at primary and standby.
Then I do this procedure:
How to shrink UNDO tablespace?
===============================
The datafile for UNDO tablespace can’t be shrunk as we had issue where the datafile was set to unlimited and it kept on growing to fix the issue one can do the following steps.
– UNDOTBS2 is new undo tablespace name
SQL> create undo tablespace UNDOTBS2 datafile ‘/u50/oradata/PROD/undotbs2.dbf’ size 1000m;
– make the new tablespace to be the undo tablespace
SQL> alter system set undo_tablespace=undotbs2;
– get the filename of the old undo tablespace which will be shrink so you can reclaim  the space
SQL> SELECT file_name FROM dba_data_files WHERE tablespace_name = ‘UNDOTBS1';
FILE_NAME
/u49/oradata/PROD/undotbs1.dbf
SQL> alter database datafile '/u49/oradata/PROD/undotbs1.dbf' resize 500M;
Yes, it is also resize to 500M undo datafile on standby datbaase. (Must be STANDBY_FILE_MANAGEMENT=AUTO on standby database)
==============================
HOW TO SHRINK TEMP
SQL> CREATE TEMPORARY TABLESPACE temp2
2 TEMPFILE '/u50/oradata/PROD/temp2.dbf' SIZE 5M REUSE
3 AUTOEXTEND ON NEXT 1M MAXSIZE unlimited
4 EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1M;
Tablespace created.
SQL> ALTER DATABASE DEFAULT TEMPORARY TABLESPACE temp2;
Database altered.
There will create temporary tablespace TEMP2 and will set default temporary  tablespace TEMP2 on standby database, too.
SQL> alter database datafile '/u49/oradata/PROD/temp.dbf' resize 500M;
It is not resize temporary  file on standby database. Becuase it is not created yet.
Regards
Mahir M. Quluzade