[Xen-users] DRDB Oddness

[Stuart Poulton <swp@xxxxxxxxxxxxxx>]

Hi All,

I'm successfully using drbd on xen dom0's across a 2 machine cluster.

However I have one domU that refuses to start on one of the machines,
but starts find on the other. Config files for domU and drbd are
identical.

Not sure where to start looking to diagnose the problem

x-host-3:/etc/xen # xm create n-monitor
Using config file "/etc/xen/vm/n-monitor".
Started domain n-monitor


x-host-2:~ # xm create n-monitor
Using config file "/etc/xen/vm/n-monitor".
Error: Device 51712 (vbd) could not be connected. /etc/xen/scripts/block 
failed; error detected.

cat /proc/drbd 
version: 8.0.6 (api:86/proto:86)
SVN Revision: 3048 build by phil@mescal, 2007-09-03 10:39:27
 0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate C r---
    ns:67460 nr:42100 dw:109560 dr:276 al:8 bm:13 lo:0 pe:0 ua:0 ap:0
        resync: used:0/31 hits:79 misses:13 starving:0 dirty:0 changed:13
        act_log: used:0/257 hits:14489 misses:8 starving:0 dirty:0 changed:8
 1: cs:Connected st:Secondary/Primary ds:UpToDate/UpToDate C r---
    ns:0 nr:349880 dw:349880 dr:0 al:0 bm:7 lo:0 pe:0 ua:0 ap:0
        resync: used:0/31 hits:67 misses:7 starving:0 dirty:0 changed:7
        act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
 2: cs:Connected st:Secondary/Primary ds:UpToDate/UpToDate C r---
    ns:0 nr:16956532 dw:16956532 dr:0 al:0 bm:231 lo:0 pe:0 ua:0 ap:0
        resync: used:0/31 hits:0 misses:0 starving:0 dirty:0 changed:0
        act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0


x-host-2:~ # cat /etc/xen/vm/n-monitor 
name="n-monitor"
ostype="opensuse"
uuid="43f11902-dfef-345e-e523-0e68c26a6e0b"
memory=1024
vcpus=2
on_crash="destroy"
on_poweroff="destroy"
on_reboot="restart"
localtime=0
kernel = "/boot/vmlinuz-xen"
ramdisk = "/boot/initrd-xen"
root="/dev/xvda1"
disk=[ 'drbd:n-monitor,xvda,w', ]
vif=[ 'mac=00:16:3e:41:89:24,bridge=xenbr0', 
'mac=00:16:3e:41:89:25,bridge=xenbr1' ]
vfb=['type=vnc,vncunused=1']


resource n-monitor {
  protocol C;
  net {
        allow-two-primaries;
  }
  on x-host-2 {
    device     /dev/drbdr2;
    disk       /dev/sdb3;
    address    10.1.1.111:7790;
    flexible-meta-disk  internal;
  }

  on x-host-3 {
    device    /dev/drbd2;
    disk      /dev/sdb3;
    address   10.1.1.112:7790;
    meta-disk internal;
  }
}



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