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  • 1.  Not able to VMtion a VM

    Posted Jan 20, 2009 10:54 PM

    I am not the one who setup these hosts , but all host in a cluster , we have 4 hosts one of the host needs some part replacement , so we have to vmotion all the VMs from it , Vmotion went fine for all the machine except on VM I got this error :

    Unable to migrate from "ESX1" to "ESX2" : virtual machine is configured to use a device that prevents migration : device "SCSI Device1" is a raw disk , which is not dupported

    Same massage but SCSI Device 2

    I open the VM sitting and found 1 SCSI Device 1 and 2 , and path is /vmfs/devces/genscsi/vml.000001212212110000045445450 , in front of each device under summary column.

    Just to let you know , this VM used as a backup server , connected to a IBM tape library.

    Any idea how to migrate this VM .



  • 2.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:25 PM

    rayan68,

    Some questions for you

    - Do you have the tape library mapped as a raw disk to the VM?

    - If yes, then are all hosts in the cluster able to see the tape library?

    - Also, are all hosts able to see the vmfs lun on which the vmdk descriptor for the raw disk resides?

    - Finally, this thread might be of help.

    --sanjana



  • 3.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:38 PM

    If I go to hsot -


    Storage Adapters -- highlight vmhba0 in all hosts I can see that they see everything same as it looks in the picture



  • 4.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:40 PM

    From all hosts if I go to configuration -


    Storage Network -- and click vmhba and can see the same configuration



  • 5.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:41 PM

    From all hosts if I go to configuration -


    Storage Network -- and click vmhba and can see the same configuration



  • 6.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:42 PM

    From all hosts if I go to configuration -


    Storage Network -- and click vmhba and can see the same configuration



  • 7.  RE: Not able to VMtion a VM

    Posted Jan 20, 2009 11:59 PM

    I can see that the tape drive is connected to vmhba0 (is that correct?)

    What about the vmfs volume which houses the vmdk descriptor for the raw disk?



  • 8.  RE: Not able to VMtion a VM

    Posted Jan 21, 2009 07:26 PM

    What do you mean ,I checked all of them and they all look they have the same configuration, I also try to add te same SCSI Device (Tap - IBM) to one of te testing host in deferent host in the same cluster , and try to vmotion it from this host to the host 4 but got the same massage ,



  • 9.  RE: Not able to VMtion a VM

    Posted Jan 21, 2009 08:22 PM

    rayan68,

    - What does your VM configuration look like? Do you two raw devices connected to the VM? (i.e. what are the SCSI1 and SCSI2 devices?).

    - I'm assuming that all ESX hosts are presented the tape device with the same LUN ID (ref: Unix-Sysadmin's last comment on this thread.)

    - Also, take a look at what rt7500 mentions here. Seems like you might need to remove the device from the VM, rescan all hosts and re-add the device to the VM.

    --sanjana