[Ocfs2-users] No Space left on the device.

[Tao Ma]

Hi Brad,

Brad Plant wrote:
> Hi Tao,
> 
> On Fri, 05 Mar 2010 14:33:36 +0800
> Tao Ma <tao.ma at oracle.com> wrote:
> 
>> Another way is that you can cp the file to another volume, remove it and 
>> then cp back. It should be contiguous enough.
> 
> Assuming we *can* still write to the FS (i.e. as more of a preventative action), would the following do the same?
> 
> cp -a a b
> mv b a
> 
> Can the above work as a *hack* online defrag? Will this reduce the amount of free space fragmentation and therefore stop (or reduce the chance of) this problem from occurring? Would we need to do it to the entire file system or just a few larger files?
yeah, that should work.
you can use debugfs.ocfs2 to see whether a file is more fragmented or not.

Regards,
Tao
> 
> Cheers,
> 
> Brad