[Ocfs2-users] OCF2 and LVM

[Jordi Prats]

Hi,
I'm not an expert on oracle, but I don't think using a snapshot is a 
recommended backup solution. You should use data pump or exp utilities 
to backup your database.

To extend your fs, tune2fs.ocfs2 requires you to umount it, according to 
it's man page:

==
tunefs.ocfs2 is used to adjust OCFS2 file system parameters on  disk. 
In order to prevent data  loss,  tunefs.ocfs2  will not  perform any 
action on the specified device if it is mounted on any node in the 
cluster.  This tool requires the O2CB cluster to be online.
==

The concrete command should be: tune2fs.ocfs2 -S /dev/LVM_volume

I don't know if there's any way to extend it without umounting it.

If you want to extend your fs without umounting it you should use ASM 
instead of OCFS2.

regards,
Jordi

Riccardo Paganini wrote:
> Does anybody knows if is there a certified procedure in to backup a RAC 
> DB 10.2.0.3 based on OCFS2 ,
> via split mirror or snaphots technology ?
> 
> 
> Using Linux LVM and OCFS2, does anybody knows if is possible to 
> dinamically extend an OCFS filesystem,
> once the underlying LVM Volume has been extended ?
> 
> Thanks in advance
> Riccardo Paganini
> 
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