Misconfiguration with DRBD on Proxmox 3.0?

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/etc/drbd.d/r0.res
resource r0 {
protocol C;
startup {
wfc-timeout 0;
degr-wfc-timeout 60;
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;
#data-integrity-alg crc32c;
}
on node1 {
device /dev/drbd0;
disk /dev/sdb1;
address 192.168.0.1:7788;
meta-disk internal;
}
on node2 {
device /dev/drbd0;
disk /dev/sdb1;
address 192.168.0.2:7788;
meta-disk internal;
}
}

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root@node1:~# /etc/init.d/drbd start

drbd.d/r0.res:18: conflicting use of device-minor 'device-minor:node1:0' ...
drbd.d/os.res:24: device-minor 'device-minor:node1:0' first used here.
Starting DRBD resources:drbd.d/r0.res:18: conflicting use of device-minor 'device-minor:node1:0' ...
drbd.d/os.res:24: device-minor 'device-minor:node1:0' first used here.
root@node1:~# configuration file /etc/drbd.d/r0.res

root@node2:~# /etc/init.d/drbd start
drbd.d/r0.res:18: conflicting use of device-minor 'device-minor:node1:0' ...
drbd.d/os.res:24: device-minor 'device-minor:node1:0' first used here.
Starting DRBD resources:drbd.d/r0.res:18: conflicting use of device-minor 'device-minor:node1:0' ...
drbd.d/os.res:24: device-minor 'device-minor:node1:0' first used here.

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