[DRBD-user] DRBD and LVM meta-disk

Rabin Yasharzadehe rabin at isoc.org.il
Tue Aug 27 08:22:27 CEST 2013

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

Use LVM as the drbd raw device this way you have the option to re-size the
LVM (mostly enlarge) without any problem.

you can find the meta-data overhead furmula at
but the cost is very small ~ for a 60GB resource the metadata is less then

Rabin Yasharzadehe

On Mon, Aug 26, 2013 at 9:18 PM, Net Warrior <netwarrior863 at gmail.com>wrote:

> Hi there guys.
> I'have a doubt regarding meta-disk usage, I'd like to hear the
> recomendations from you about that.
> I've got some logical volumes ( LVM on linux ) which I want to replicate,
> this is a two node configuration, I've got some oracle database partitions
> and other directories containing other data.
> What's not clear for me is if I have to use internal meta-disk like
> /dev/sda4 or to create another lvm to hold that, some guys told me to use
> one or another, but not a really answer, I know that I can use one or
> another, but do not know the risks/adventages/disadventages if any.
> Another thing is if there is a calculation to the size of that partition,
> let say, to replicate a 100GB partition the size of the metadisk should be
> X size.
> Thanks for your time and support.
> Regards
> _______________________________________________
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> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
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