[DRBD-user] Setting up >16TB drive with 8.3.11

Jake Smith jsmith at argotec.com
Mon Aug 15 23:02:32 CEST 2011

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

----- Original Message -----
> From: "Daniel Meszaros" <spam at meszi.de>
> To: drbd-user at lists.linbit.com
> Sent: Monday, August 15, 2011 4:01:24 PM
> Subject: Re: [DRBD-user] Setting up >16TB drive with 8.3.11
> Hi!
> Am 12.08.2011 15:12, schrieb Jeremy Wilson:
> > I was under the impression that 8.3.11 supported drives over 16TB
> > in size, but when I run drbdadm create-md, it only creates a 16TB
> > partition.  The partition I have is 30TB.
> >
> > Can anyone offer some suggestions how I might create a single 30TB
> > partition with 8.3.11 on CentOS 5.6?  I tried to use LVM2 to
> > combine two DRBD volumes but the volume manager wouldn't recognize
> > the drives correctly.
> IMHO LVM does not need to reside in a partition but can also be
> introduced to the whole block device. Try setting it up for /dev/sda
> instead of /dev/sda1.
> CU,
> Daniel.

I think Jeremy was trying to setup LVM on /dev/drbd0 and /dev/drbd1 not on the physical device.

If so what you might be missing is the filter you need to modify (LVM) to recognize the DRBD devices as physical volumes after running pvcreate /dev/drbdX.  That can be found here in the archived v8.3 DRBD Users Guide:


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