Re: Advise on re-creating ASM diskgroup

I think RMAN is the best option for doing this.

For moving control files you can use 'restore controlfile to' command,
note 468458.1.
For moving redo logs, you can create new redolog groups in new DG and
drop the old ones after making sure old ones are not in use.
For archives you can use 'backup as copy' command.
There is a method mentioned at
"http://download.oracle.com/docs/cd/B14117_01/server.101/b10734/rcmasm.htm#1018859";
to move the whole FRA to new DG. (This is for 10g, this might work for
11.1 as well)

These are only hints, Pl validate and identify the right sequence of
steps for your environment.

Incidentally RMAN cp command is working very wieldly, as per
http://www.pythian.com/news/910/oracle-asm-11g-does-the-asmcmd-cp-command-really-work/
(You might have already checked on this, just FYI though!)

HTH.

Cheers/Aditya


On Tue, Sep 7, 2010 at 8:29 PM, Peter Hitchman <pjhoraclel@xxxxxxxxx> wrote:
> Thanks, but that is not the root of the problem, I have used kfed to
> show that all of tha ASM disk headers are OK, Oracle support think a
> directory tree structure has got corrupted. Re-creating the diskgroup
> appears to be the only fix, only so far I cannot decide on how best to
> move files in and out.
>
> Regards
> Pete
>
> On Tue, Sep 7, 2010 at 3:29 PM, Thomas Roach <troach@xxxxxxxxx> wrote:
>> Have you seen this post?
>>
>> http://jarneil.wordpress.com/2009/06/08/fixing-up-asm-disk-header-corruption/
>>
> --
> http://www.freelists.org/webpage/oracle-l
>
>
>
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