How reInstall Gride Infrastructure and Use old ASM disk groups

<pre>Hello to all
I installed Grig Infrastructure 11gR2 on a standalone server (OS is Linux)
and I configured ASM and my database created on ASM
Conceive that my OS disk corrupted and OS doesn't start and the Gride Home is on that disk,
and I have to install OS again
My ASM disks are safe , Now how can I install Grig Infrastructure again somehow that it can use previous ASM disks
and disk groups and I don't oblige to create my database again ?
In the step 2 of installing Gride Infrastructure it has four options
<pre>
1.Install and configure Oracle Grid Infrastructure for a Cluster
2.Configure Oracle Grid Infrastructure for a Standalone Server
3.Upgrade Oracle Gride Infrastructure or Oracle Automatice Storage Management
4.Install Oracle Gride Infrastructure Software Only
</pre>
If I select the option 2 it wants to create a disk group again
I guess that I need to select option 4 and then do some configuration but I don't know what I must configure
Do you know answer of my question , if yes please explain it's stages
Thank you so much
</pre>

Hi,
no you are not obliged to recreate your database again. However there is a small flaw in the installation procedure, which does not make it 100% easy...
When you installed the Oracle Restart (Standalone GI), your ASM diskgroup will contain the SPFILE of the ASM instance. And this is exactly the small flaw you will be encountering. So you have 2 options for "recovery":
1.) Do a software only install (4), and run roothas.pl. This however will not create any ASM entries. You would have to add it manually (using srvctl) and you can specify the ASM Spfile with the srvctl command. Problem here is however to have to know where your ASM spfile has been. If you have a backup of your OLR and a backup of the GPNP profile, this might be easier to find out.
2.) Do a new installation (2) and configure a new diskgroup (with a "spare" disk or small lun and a new name), that Oracle restart creates ASM instance and the new ASMSpfile for you.
Then you can simply mount the diskgroup containing your database additionally. You then shoudl however move your new ASMSpfile to the new diskgroup (or simply exchange it with the existing one). In this case it is easier to find out where it was - however you will need a spare (though small) LUN for the new spfile (temporarily, until you exchange it).
In either case after you have your ASM instance back (and access to your old diskgroup), you have to reregister your database and services - if you do not have an OLR backup.
Again => It is doable and you can simply mount the ASM diskgroup containing your database. However I suggest you try this one time to know what really needs to be done in this case.
Regards
Sebastian

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user1987306 wrote:
Hello everyone!
My point is I wanna move or migrate the directories DATAFILE, PARAMETERFILE, TEMPFILE and the SPFile to "+FILES", ONLINELOG and CONTROLFILE to "+LOG1" and "+LOG2", this way, the ASM disk group "+FRA" will contain the Flash Recovery Area only. What is the procedure to do this?
Thanks in advance!
Hi,
There are couple of approaches you can use, here is some of them
- To move datafile, start the database in mount state
RMAN > copy datafile '+FRA/xxx' to '+FILES1';
SQL > alter database rename file '+FRA/xxx' to '+FILES1/xxx';
- To move tempfile
SQL > alter tablespace TEMP add tempfile '+FILES1' SIZE 10M;
SQL > alter database tempfile '+FRA/xxx' drop;
- To move onlinelog
SQL > alter database add logfile member '+LOG1' to group 1;
SQL > alter database add logfile member '+LOG2' to group 1;
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- To move controlfile
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