Wednesday, February 26, 2014

Converting RDM disk to VMDK

ISSUE : need to convert the RDM disk (physical mode or virtual mode) to VMDK disk

symptoms : couple of vm might be having rdm disk ( physical or virtual) and need to convert those disk into vmdk.

Scenario A: Converting physical compatability mode  RDM disk to VMDK

                1.directly converting physical mode rdm to vmdk will not be possisble First this physical mode rdm disk need to be converted to virtual mode.
                2.shutdown the vm
                3. click edit settings and select the physical mode rdm disk
                4. click remove disk and delete from datastore ( this will not delete the data from the disk for physical compatability mode rdm disk)
                5.click edit settings
                6. Add hard disk
                7. rdm disk
                8.select the rdm disk and select the mode as virtual compatability mode
                9.power on the server
                10.click edit settings and select migrate
                11.select datastore migration option
                12.select advance under the disk
                13.change the disk format to thick or thin disk
                14.select the destionation datastore .

Scenario B: Converting Virtual compatability mode RDM disk to VMDK
      
                 1.click edit settings and select migrate
                 2.select datastore migration option
                 3.select advance under the disk
                 4.change the disk format to thick or thin disk
                 5.select the destination datastore .
 

2 comments:

  1. Make sure you upgrade the Virtual Hardware to version 10 to support vRDM's over 2 TB ( and use the web client )

    Converting to VMDK over 2 TB will mean you won't be able to HOT Extend a Server drive. It will need to be shutdown each time

    http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2058287&vmw_so_vex_rcava_1136

    "You cannot hot-extend a virtual disk if the capacity after extending the disk is equal to or greater than 2 TB. Only offline extension of GPT-partitioned disks beyond 2 TB is possible."

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