[DRBD-user] LVM PV on drbd block device

Juan Antonio pushakk at limbo.ari.es
Fri Nov 13 20:32:05 CET 2009

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hi Florian,

I'm so sorry about my mistake, I'll promise to be more carefully in the
future. Moreover I have already done the necesary tests so I could have
been it before question the list. I'ts only that I am too "slowly? dumb?"
reading and understanding the english language.

Thank you very much.

> On 11/13/2009 04:59 PM, Juan Antonio wrote:
>> Hi again,
>>
>> Why the drbd documentation do not reference this issue in the
>> "Configuring
>> a DRBD resource as a Physical Volume" section?
>
> Because googling for "DRBD LVM" and hitting the LVM page in the user's
> guide does not mean you should be skipping the Fundamentals chapter. :)
>
> From http://www.drbd.org/users-guide/s-resource-roles.html:
>
> "A DRBD device in the secondary role receives all updates from the peer
> node's device, but otherwise disallows access completely."
>
> In other words, a pvscan on a Secondary device will never return a PV
> signature for that device. For LVM's purposes, as long as that DRBD
> resource is Secondary, no PV exists there. Make it Primary, rescan, and
> as if by magic you'll see your PV sig, and your VG, and once you
> activate it, all your PVs.
>
> At this point I'll assume that you have different lvm.conf "filter"
> entries on your nodes. Please go back and fix that, and follow the LVM
> chapter again (after you've made sure you've understood the
> fundamentals). In your current configuration you're probably signing up
> for losing data.
>
> Cheers,
> Florian
>
> _______________________________________________
> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
>





More information about the drbd-user mailing list