Proxmox & DRBD - Up to date how-to ?

[avanmessen]

I' m curious about running proxmox on DRBD but
I' m having some trouble getting this to work by
following the how-to on this ...

Here is what I get when I try to run DRBD :

DRBD module version: 8.3.2
userland version: 8.3.4
preferably kernel and userland versions should match.

How can I make these match ?
DRBD will not run like this ...

Thanks to advise !

 

[Mirage]

but it runs !

 

[avanmessen]

You' re right it runs, but ...

drbdadm create-md r0
DRBD module version: 8.3.2
userland version: 8.3.4
preferably kernel and userland versions should match.
Device '0' is configured!
Command 'drbdmeta 0 v08 /dev/sdb1 internal create-md' terminated with exit code 20
drbdadm create-md r0: exited with code 20

 

[Mirage]

can you post your /etc/drbd.conf file ?

 

[avanmessen]

global { usage-count no; }
common { syncer { rate 30M; } }

resource r0 {
protocol C;
startup {
wfc-timeout 15;
become-primary-on both;
}
net {
cram-hmac-alg sha1;
shared-secret "my-secret";
allow-two-primaries;
after-sb-0pri discard-zero-changes;
after-sb-1pri discard-secondary;
after-sb-2pri disconnect;
}
on node1 {
device /dev/drbd0;
disk /dev/sdb1;
address 10.0.0.1:7788;
meta-disk internal;
}
on node2 {
device /dev/drbd0;
disk /dev/sdb1;
address 10.0.0.2:7788;
meta-disk internal;
}
}

 

[Mirage]

Hum that's exactly what I did this morning...

Is there any filesystem on /dev.sdb1 ?

 

[avanmessen]

To be sure I ran a "dd if=/dev/zero of=/dev/sdb1" on the disks.
Then I recreated the sdb1 partition as stated in the how-to ...

 

[avanmessen]

Still getting :

drbdadm create-md r0
DRBD module version: 8.3.2
userland version: 8.3.4
preferably kernel and userland versions should match.
Device '0' is configured!
Command 'drbdmeta 0 v08 /dev/sdb1 internal create-md' terminated with exit code 20
drbdadm create-md r0: exited with code 20

Even though fdisk shows :

Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x1bc37ad4

Device Boot Start End Blocks Id System
/dev/sdb1 1 30401 244196001 8e Linux LVM

 

[Mirage]

Have you tried restarting drbd ?

Or passing through this error and up the resource ?

 

[avanmessen]

DRBD restarted.
Upping resource gives me :

drbdadm up r0
DRBD module version: 8.3.2
userland version: 8.3.4
preferably kernel and userland versions should match.
0: Failure: (124) Device is attached to a disk (use detach first)
Command 'drbdsetup 0 disk /dev/sdb1 /dev/sdb1 internal --set-defaults --create-device' terminated with exit code 10

 

[Mirage]

was /dev/sdb1 mounted ?

try drbdadm detach r0

 

[avanmessen]

After doing a drbdadm detach r0 and
drbdadm disconnect r0 I finally got it
to run !!!

Thanks ))

 

[tom]

you are not running the latest stable, all our kernel branches got DRBD module 8.3.4

pls post the output of:

pveversion -v

 

[avanmessen]

Here it is :

pve-manager: 1.5-8 (pve-manager/1.5/4674)
running kernel: 2.6.24-8-pve
pve-kernel-2.6.24-8-pve: 2.6.24-16
qemu-server: 1.1-11
pve-firmware: 1.0-3
libpve-storage-perl: 1.0-10
vncterm: 0.9-2
vzctl: 3.0.23-1pve8
vzdump: 1.2-5
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1

Am stuck again though, when I try to run
"pvcreate /dev/drbd0" it now returns me :

Device /dev/drbd0 not found (or ignored by filtering).

And yes, I modified lvm.conf as per the how-to and
restarted the lvm service.

We would like to compare a working version of proxmox
to our actual setup running vmware server 2 on a DRBD.
All help is appreciated in getting us there ...

 

[avanmessen]

df command doesn' t show the drbd0 device
fdisk on sdb1 shows a linux lvm partition
rebooted the servers to be sure

What am I missing ?

 

[tom]

you run an old kernel, update to the latest stable. see http://pve.proxmox.com/wiki/Downloads#Update_a_running_Proxmox_Virtual_Environment_1.x_to_1.5