If the instance is running with spfile parameter and you have changed the dynamic parameter to spfile only. Indeed, during a new asm installation, the oracle universal installer oui. Dec 16, 2010 here, i just showed you,how to move asm spfile from one diskgroup to another diskgroup. Asm instance not using spfile even spfile exists in diskgroup doc id 1638239.
Ora it gives path of spfile file which is getting used by database for starting up. L eventually we decided to give up this solution and we are using spfile in a regular file system. How to check whether oracle instance is started using pfile. Db has not been restarted then why the spfile read it is showing because as per my understanding it shows message like this when we start the db. Dec 02, 2015 fixing a problem with the asm spfile preventing rac 12c from starting this is a little note to myself on how to fix a corrupt spfile in clustered asm. How to move asm spfile from one diskgroup to another diskgroup. Getting the database parameters from a spfile frits hoogland weblog. You can back up, copy, or move an oracle asm spfile with the asmcmd spbackup, spcopy, or spmove commands. Enterprise manager provides a guibased option for migration of a database to asm storage. Beginners guide to working with spfile in oracle asm the geek.
Asm instance not using spfile even spfile exists in diskgroup. It says that one of the reasons to use spfile is if i use oemoms to startstop database, the pfile needs to be on the machine where oms is installed or pfile should be accessible to the machine running oms. Tom i am going through your book effective oracle by design. When an oracle asm instance searches for an initialization parameter file, the. When using a nondefault server parameter file, you must specify the server parameter filename in the startup command when you start up the database. Few days back i was changing some memory parameters and was unable to start the database. Ora32000 not able to modify the rdbms spfile which is.
Oct 14, 2014 find out the spfile location in asm list the asm disk maps to be partition. This is because it has a header and footer that contains binary values. Until the next time we had to use create spfile the nightmare got back again. Set some database options and rename the spfile in asm. Ora file has given way to a more robust method the server parameter file spfile. By default, a new oracle9i database will be working on a pfile, so the spfile must be created from the pfile at the sql prompt. But this is available only if the asm instance is started. Aug 17, 2015 enable the use of oracle managed files on asm diskgroups. Mar 02, 2011 recreating spfile on asm storage from pfile filed under. If you have corrupted your spfile and its easy to do it you can start with a local pfile and the create spfile from pfile. The oracle spfile is a binary representation of the text0based init.
Other databases uses asm so everything seems to be ok except there is no spfile. Making a back up copy of an oracle asm spfile in a disk group. About initialization parameter files for an oracle asm instance. In this case it will be necessary to shutdown the database and asm instances, then. How does oracle reads spfile and mounts instance when the spfile is stored in asm. For information about asmcmd commands for managing an oracle asm spfile. Can i edit my spfile, or should i recreate by spfile from my pfile. Migrating databases to and from asm with recovery manager. By looking at these values, oracle reads spfile and mounts the asm instance. The the spfile is really just a flatfile text file, with binary ascii nul character padding at the beginning and end of. The asm spfile in this case is located on a raw device, so backup and recovery from and to a raw device is explained. A spfile is a binary version of the parameter file of the oracle database. About initialization parameter files for an oracle asm.
Creating, copying, and moving an spfile into a disk group. Asm instance not using spfile even spfile exists in. Another thing that is not usual and everytime i do, someone be surprised. Do not perform rest of the steps if you want to use pfile.
I would suggest start by checking asm is running and then query the status of your diskgroups. When upgrading an oracle asm instance, if the asm spfile was originally in a shared file system, then the upgraded oracle asm instance retains the spfile in the same location. Settings for oracle asm instance initialization parameters are discussed in this topic. Because database was not accepting the parameter values. How can i tell if my database was started with a spfile. By default, a new oracle database will be working on a pfile, so the spfile must be created from the pfile at the sql prompt. One of them is oracle local repository olr, this repository designed to store information and profiles for local resources, resources th. Dec 16, 20 oracle 11gr2 have many new futures in grid computing area. Starting up an oracle asm instance with an incorrect spfile path. Create spfile on asm from pfile on filesystem grepora. For example, create an oracle asm spfile from the existing pfile. Learn what truly works in converting and maintaining your parameters without ever having to use an editor again. Asm unable to get logical block size for asm spfile.
It usually happens in combination with spfile creation in asm, or with rman spfile restores to asm. Oracle first look for a sp file and after that after a p file sp file s provide the following advantages over p file s. How to install oracle 12c and asm on redhat oracle database. This chapter describes how to migrate part or all of your database into and out of asm storage using recovery manager. Ora32000 not able to modify the rdbms spfile which is there. Hello i know that in oracle11gr2 spfile location and diskstring parameters are located in oracle local registry. Fixing a problem with the asm spfile preventing rac 12c from.
Is there a view where i can check whether an instance had been started using a pfile or an spfile. For information about the asmca gui and commandline interfaces, see managing oracle asm with asmca. So the first thing i did was to confirm that the spfile is in the asm disk. Some more articles you might also be interested in. Asm disk wont be onlinemounted if asm instance isnt started. Jul 20, 2012 this morning, i was wondering how asm instance could be started if the spfile is stored inside asm disk. In oracle rac database spfile must be created on shared asm storage. When the default server parameter file is used by the server, the value of spfile is internally set by the server. Since you can not change a spfile directly, oracle allows you to manage the spfile via the alter system command. But note the following when replacing a spfile that resides in asm. May 30, 2003 oracle s traditional method of storing parameters in the init.
How to fix a broken asm spfile, held within asm rants. The oracle spfile is a binary representation of the textbased init. Recreating spfile on asm storage from pfile dba sensation. If the spfile path in the gpnp profile is incorrect, you can start the oracle asm instance as follows. Apr 11, 2010 create spfile from pfile when the database is started with a pfile. Asm unable to get logical block size for asm spfile oracle. The following is an example of how to move your spfile from asm to your file system or vice versa.
If the parameter spfile and pfile returned some value thats mean the spfile is located in that disk. Mar 06, 20 in this post, i am going to explain how we can create recreating the spfile for rac instances. Use the create pfile statement to export either a binary server parameter file or the current inmemory parameter settings into a text initialization parameter file. To install and initially configure an oracle asm instance, use oracle universal installer. It usually happens in combination with spfile creation in asm, or. If a parameter is changed using the alter system set command oracle will apply this parameter change to the current sp file.
When installing oracle asm in a clustered oracle asm environment, oui creates a single, shared spfile for oracle asm in a disk group. But then you get the location of the local one you used. About backing up, copying, and moving an oracle asm. You can administer oracle asm initialization parameter files with sqlplus, asmca, and asmcmd commands. If you specify the oracle asm filename syntax, then the database creates the spfile in an oracle asm disk group. In what order does oracle search for the pfile and spfile locations at database startup time.
If no spfile is associated with the instance, then the database looks for the platformspecific default server parameter file name. Then the logical assumption would be that either asm is not started properly or the diskgroups configured for asm have not been mounted properly or the file is no longer present. Backup and restore using create pfile from spfile and create spfile from pfile can also be used. The asm spfile is stored in a disk group during installation. Locate the oracle asm spfile using the asmcmd spget command. Ora32000 not able to modify the rdbms spfile which is there in asm. While it is possible to edit the spfile, using editors like vi will corrupt the spfile. If you look here, youll see a link to the spfile to its true asm place. Stepbystep database configuration optional and site specific.
At this time it does not validate the new parameter value. Add new logfile groups to use asm diskgroups and drop old logfile groups which are on file system. In the previous blog post, to the question where is the asm spfile i answered by running asmcmd spget. Create a pfile with one line in it that identifies the path to the. The spfile is different from the pfile in that it can not be directly edited. When installing oracle asm in a clustered oracle asm environment, oui creates a single, shared. How to check whether oracle instance is started using. Also the asm has its own spfile, normally in a rac the asm spfile lives on the ocrvoting disk diskgroup, so each asm instance can access the same spfile, this is correct. How to fix a broken asm spfile, held within asm send article as pdf my server rebooted itself and when it came back up, none of the databases or asm had restarted. Lets assume you made a change to the asm server parameter file that causes an issue. Creating a text parameter file is a convenient way to get a listing of the current parameter settings being used by the database, and it lets you edit the file easily in a text editor and then convert it back into a. How to move spfile from asm to filesystem the geek diary. Mar 26, 2016 for spfile, you need to find where your spfile file is on asm, remember your database is not even mounted, so oracle is totally lost as where the location of databases spfile is.
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