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Okay, solve it. DRBD metadata creation seems is the problem. Its working with our first VM with DRBD metadata internal, it will consume some unallocated disk space on its logical volume. However, on this second VM it seem DRBD metadata damage the logical volume. So, I have create another different LV partition and store the DRBD data externally and the opensuse VM boot properly. Somehow, this both internal and external DRBD metadata have its own advantages and disadvantages as we can read the information here http://www.drbd.org/users-guide/ch-internals.html .

Regards,

Agya

On Thu, Apr 18, 2013 at 10:56 PM, agya naila <agya.naila@xxxxxxxxx> wrote:

Hi all,

I use Xen 4.2.1 and drbd 8.3.11 configured from sources. I managed to use this drbd to backup two of my virtual machine, however this two virtual machine in the same volume group LVM.

user1@machine1:/dev/vgvoip$ sudo lvdisplay
--- Logical volume ---
LV Name /dev/vgvoip/User1-DomU
VG Name vgvoip
LV UUID 8ILyLk-dSaj-sIQg-YWb3-FbCp-G3Qn-NQilR1

LV Write Access read/write
LV Status available
# open 0
LV Size 10.00 GiB
Current LE 2560
Segments 1

Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0

--- Logical volume ---
LV Name /dev/vgvoip/opensuse

VG Name vgvoip
LV UUID JByS5q-4ed4-3A4v-51qP-dI02-CkHA-KcVJMS
LV Write Access read/write
LV Status available
# open 2

LV Size 4.00 GiB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256

Block device 252:1

and here it is my drbd configuration

resource drbd-vm{
device /dev/drbd1;
disk /dev/vgvoip/User1-DomU;

meta-disk internal;
on machine1 {
address 10.10.10.1:7789;
}
on machine2 {
address 10.10.10.3:7789;

}
}

resource drbd-suse{
device /dev/drbd2;
disk /dev/vgvoip/opensuse;
meta-disk internal;
on machine1 {
address 10.10.10.1:7791;

}
on machine2 {
address 10.10.10.3:7791;
}
}

The first VM (ubuntu domU) with drbd-vm resources is running perfectly. However my second machine won't start. Drbd resources fro this drbd-suse can connect each other

user1@machine1:/dev/vgvoip$ sudo cat /proc/drbd
version: 8.3.11 (api:88/proto:86-96)
GIT-hash: 0de839cee13a4160eed6037c4bddd066645e23c5 build by root@machine1, 2013-04-01 21:45:51

1: cs:Unconfigured
2: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate D r-----
ns:12 nr:0 dw:12 dr:4207485 al:2 bm:256 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b def:0 chkpt:1 oos:0

however when I start the virtual machine its failed with message

EXT4-fs (xvda2): bad geometry: block count 900096 exceeds size of device (900055 blocks)

But if change the VM disk string back to disk = ['phy:/dev/vgvoip/opensuse,xvda,w'] my VM will running well.

Does anybody now how to solve this? I have sent this problem to drbd milist but still doesn't have answered yet.

Regards,

Agya

Re: [Xen-users] drbd lvm error