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@gmail.com> wrote: > > Hello everybody, > I am using stock ubuntu natty with lvmlib 2.02.66: > root@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. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
