[linux-lvm] lvm_lv_deactivate seems to have no effect, LV is still available in lvdisplay

[Prathyush]

Hi,

Hope its not dismounted properly .
Do a resize2fs again and lvchange -an

Regards
Prathyush

On Sun, Jul 24, 2011 at 1:17 PM, Alexander Lyakas <alex.bolshoy at gmail.com>wrote:

> OK, since nobody answered, let me perhaps ask a different question.
>
> Is there any way to prevent any automatic LV activation/deactivation?
> And have full manual control via lvm_lv_deactivate/lvm_lv_activate?
>
> Setting activation = 0 in global section of lvm.conf did not do the
> job, because then lvm_vg_create_lv_linear fails, so I even cannot
> create a LV.
>
> Thanks,
>   Alex.
>
>
> On Tue, Jul 19, 2011 at 5:14 PM, Alexander Lyakas
> <alex.bolshoy at gmail.com> wrote:
> >
> > Hello everybody,
> > I am using stock ubuntu natty with lvmlib 2.02.66:
> > root at 11:/mnt/work/alex# uname -a
> > Linux 11 2.6.38-8-server #42-Ubuntu SMP Mon Apr 11 03:49:04 UTC 2011
> > x86_64 x86_64 x86_64 GNU/Linux
> >
> > In my code I open a VG, iterate over all the LVs and then call
> > lvm_lv_deactivate() on each LV. The return value is 0, and also
> > immediately after that, I call lvm_lv_is_active() for each LV and
> > assert that it returns 0 (not-active).
> > Later in the code, I close the VG handle.
> >
> > However, when I issue lvdisplay from command-line, I still see:
> > LV Status              available
> > and the dm device files for the LVs are also present (/dev/dm-0 etc).
> >
> > As a result I cannot later stop the underlying md devices (PVs) using
> > 'mdadm --stop'.
> > If I do lvchange -an from the command line later, it succeeds, LV
> > status becomes 'NOT available' and I am able to stop the md arrays.
> >
> > From looking at the code of lvmlib, it looks like lvm_lv_deactivate()
> > does not require lvm_vg_write(); I see that lvchange implementation
> > does not seem to call this when de-activating LVs. Still, I have tried
> > to call lvm_vg_write() with same effect.
> >
> > No other application on the machine uses the same VG (at least not
> > that I know of).
> >
> > Can anybody please advise what I might be missing.
> >
> > Thanks,
> >  Alex.
>
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>



-- 
*Regards,
Prathyush*
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