[Xen-users] Error: Device 2049 (vbd) could not be connected (only when in auto/)

[John S Little <JSLittl@xxxxxxxxxxxxx>]

Hi all

When I have a domU that resides in the auto directory I get 'Error: Device 
2049 (vbd) could not be connected' and the domain starts in a paused mode. 
 Shutting it down and restarting has the same effect.  Following is some 
output from the xm log and an attempted restart.

Directly after dom0 reboot:

xen0:/etc/xen/scripts # xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      251     4 r-----   329.4
xen0vm0-64                         4      256     1 --p---     0.0?


>From the logs after dom0 reboot:

[2006-02-08 12:03:00 xend] ERROR (SrvBase:87) Request wait_for_devices 
failed.
Traceback (most recent call last):
  File "/usr/lib64/python/xen/web/SrvBase.py", line 85, in perform
    return op_method(op, req)
  File "/usr/lib64/python/xen/xend/server/SrvDomain.py", line 72, in 
op_wait_for_devices
    return self.dom.waitForDevices()
  File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 1350, in 
waitForDevices
    self.waitForDevices_(c)
  File "/usr/lib64/python/xen/xend/XendDomainInfo.py", line 979, in 
waitForDevices_
    return self.getDeviceController(deviceClass).waitForDevices()
  File "/usr/lib64/python/xen/xend/server/DevController.py", line 134, in 
waitForDevices
    return map(self.waitForDevice, self.deviceIDs())
  File "/usr/lib64/python/xen/xend/server/DevController.py", line 169, in 
waitForDevice
    raise VmError("Device %s (%s) could not be connected.\n%s" %
VmError: Device 2049 (vbd) could not be connected.
Device /dev/xensan/xenvm1-64 is mounted in a guest domain,
and so cannot be mounted now.

And an attempt at shutting down the domU and restarting:

xen0:/etc/xen/scripts # xm unpause xen0vm0-64
xen0:/etc/xen/scripts # xm shutdown xen0vm0-64
xen0:/etc/xen/scripts # xm list
Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      251     4 r-----   326.4
xen0:/etc/xen/scripts # xm create -c ../auto/xen0vm0-64
Using config file "../auto/xen0vm0-64".
Error: Device 2049 (vbd) could not be connected.
Device /dev/xensan/xenvm1-64 is mounted in a guest domain,
and so cannot be mounted now.
xen0:/etc/xen/scripts # 

The system setup
OS: xen0:~ # SPident
CONCLUSION: System is up-to-date!
  found    SLES-9-x86_64-SP3 + "online updates"
Hardware: Sun V20z, dual cpu AMD64
The virtual machine resides on EMC San space setup with LVM (/dev/sdc 
setup as volume group /dev/xensan)

I've tried various settings in the /etc/sysconfig/xendomains file but 
without any luck.

Can anyone steer me in the right direction to getting this resolved?

Regards,

John Little
Hendricks Regional Health IS Department
317-718-4752
jslittl@xxxxxxxxxxxxx
http://www.hendrickshospital.org

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