Re: [linux-lvm] Hide volume group during startup

[Lars Ellenberg <lars.ellenberg@linbit.com>]

On Thu, Apr 12, 2012 at 01:41:31PM +0200, Erik Schwalbe wrote:
> Hi,
> 
> filter was:
> 
> filter = [ "r|/dev/data/kvm_disk0|" ]
> 
> path:
> /dev/data/kvm_disk0 -> ../mapper/data-kvm_disk0
> 
> The device name is stable, but what other way of control activation are possible??

Forgot to update the initramfs/initrd,
and the VGs are activated from there
already, even before pivoting to the real root?

Run update-initramfs or
mkinitrd /boot/initramfs-`uname -r`.img `uname -r`
or something like that.

> 
> Regards,
> Erik
> 
> ----- Original Message -----
> From: "Bryn M. Reeves" <bmr@redhat.com>
> To: "LVM general discussion and development" <linux-lvm@redhat.com>
> Cc: "Erik Schwalbe" <erik.schwalbe@canoo.com>
> Sent: Thursday, 12 April, 2012 1:11:44 PM
> Subject: Re: [linux-lvm] Hide volume group during startup
> 
> On 04/11/2012 11:04 AM, Erik Schwalbe wrote:
> > The iscsiinitiator created a new volume group (kvm_disk0) on the
> > blockdevice and new virtual disks (vm-203-disk-1).
> > 
> > Our problem is, that the iscsitarget host found not only the VG "data"
> > during system startup but also the other VG (kvm_disk0) and activate it.
> > So DRBD can't get exclusive access to the LV kvm_disk0.
> > 
> > We try to filter in lvm.conf, but after startup, the VG kvm_disk0 is
> > allways activated.
> 
> Please post the filter you are using as well as the full path name of
> the disk you are attempting to filter (a complete recursive listing of
> /dev as generated by lvmdump or run by hand would be useful. You can use
> a service like pastebin for this - please don't send large attachments
> to the list).
> 
> There are other ways to control activation if for some reason filtering
> will not work (e.g. the device name is not stable).
> 
> Regards,
> Bryn.

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com