What is the Spfile in Oracle?
A SPFILE, Server Parameter File, is a server managed binary file that Oracle uses to hold persistent initialization parameters. If a parameter is changed using the ALTER SYSTEM SET command Oracle will apply this parameter change to the current SPFILE.
How do I fix Spfile?
Fixed the SPFILE issue by creating PFILE. You can edit the PFILE for change valid value for the parameter or remove that parameter from the file, so that Oracle automatically pick default value. You can get old value from alert log file.
Can we edit Spfile?
Actually the only way to edit a SPFILE is through an online database.
How do I get Spfile from ASM?
How to move spfile from ASM to filesystem
- Create pfile from the spfile. First, we will create pfile in filesystem from the existing spfile in ASM.
- Remove the spfile from ASM. We can now connect the the ASM instance and remove the spfile residing in ASM disk group.
- Recreate the spfile.
- Start the database using new spfile.
How do I check my Spfile?
Select * from v$spparameter;(to check the Spfile). Select * from v$parameter(to check the pfile). If any Path available in Value column. DB is running in SPFile, else Pfile.
What is the difference between Pfile and Spfile?
While a PFILE can be edited with any text editor, the SPFILE is a binary file. The “ALTER SYSTEM SET” and “ALTER SYSTEM RESET” commands can be used to change parameter values in an SPFILE.
How do I set parameters in Spfile?
You change the value of a parameter in a parameter file in one of the following ways:
- By editing an initialization parameter file. In most cases, the new value takes effect the next time you start an instance of the database.
- By issuing an ALTER SYSTEM SET SCOPE=SPFILE statement to update a server parameter file.
Where can I find Pfile?
By default, PFILE is located in $ORACLE_HOME/dbs .
Where is Spfile in ASM?
You can check the location of the Oracle ASM SPFILE in the GPnP profile with the ASMCMD spget command. See “spget”. Restart the Oracle ASM instance so that the instance reads the SPFILE in the new location.
How do I copy a Spfile?
To make a copy of the Oracle ASM SPFILE in another disk group with the spcopy command perform the following steps:
- Locate the Oracle ASM SPFILE using the ASMCMD spget command.
- Copy the Oracle ASM SPFILE to another disk group with spcopy command.