vmware no vmotion

Error on Vsphere 4.0 during a maintenance mode session.

Not all VM do a fully vmotion but there’s some problem, wtf is ?

Serching in google and reading the vmware manuals:

DRS Does Not Move Any Virtual Machines from a Host
Virtual machines are not moved from this host. This may be because of problems with VMotion, DRS, or host compatibility.
The following are the possible reasons:
*  VMotion is not configured or enabled on this host.
*  DRS is disabled for the virtual machines on this host.
*  Virtual machines on this host are not compatible with any other hosts.
*  No other hosts have sufficient resources for any virtual machines on this host.
*  Moving any virtual machines from this host would violate an affinity or anti-affinity rule.
*  DRS is disabled for one or more virtual machines on the host.
*  A device is mounted to the virtual machine.

Ok my problem is the last:

A device is mounted to the virtual machine.

try to Disconnect the cd tray , but vmware give me an error.

Try to check on VM if the cdrom is already mounted and it is. So WTF can I try now?

Try do mount, then to umount the device. NOTHING

then the solution. a simply fucking solution..

eject /dev/cdrom

Removing the device vmware can take it’s fucking vmotion and the host get in maintenance mode.

good.

DRS Does Not Move Any Virtual Machines from a Host

Virtual machines are not moved from this host. This may be because of problems with VMotion, DRS, or host compatibility.

The following are the possible reasons:

■	VMotion is not configured or enabled on this host.

■	DRS is disabled for the virtual machines on this host.

■	Virtual machines on this host are not compatible with any other hosts.

■	No other hosts have sufficient resources for any virtual machines on this host.

■	Moving any virtual machines from this host would violate an affinity or anti-affinity rule.

■	DRS is disabled for one or more virtual machines on the host.

■	A device is mounted to the virtual machine.