Which three use cases would necissatate a RDM? (Choose three

A virtual machine is using a Fibre Channel attached RDM LUN.

Which three use cases would necissatate a RDM? (Choose three.)

A.
VMware snapshots

B.
NPIV

C.
Physical server-to-virtual machine clustering

D.
Distributed file locking

E.
SAN management agents

4 Comments on “Which three use cases would necissatate a RDM? (Choose three

  1. Raj says:

    NPIV stands for N-Port ID Virtualization. It is an ANSI T11 standard that describes how a single Fibre Channel Physical HBA port can register with a fabric using several worldwide port names (WWPNs), what might be considered Virtual WWNs. This in turn means that since there a multiple Virtual HBAs per physical HBA, we can allow WWNs to be assigned to each VM.

  2. vcp510 says:

    Correct: C, E, and B not D

    Because:

    “You can use NPIV only for virtual machines with RDM disks.”
    http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.storage.doc/GUID-D9B143D8-9F93-41D1-A32F-9FF4DE4CDF14.html

    “VMFS and RDM. Both options provide clustered file system features such as user‐friendly persistent names, distributed file locking, and file permissions.”
    http://www.vspecialist.co.uk/objective-1-1-raw-device-mapping-rdm/

    I study a lot and work with this technology but still this questions are messy for me:

    1467 – A or B or D
    1506 – D and C or A
    1549 – A or C or D
    818 – A and D
    1162 – B or C
    1336 – D and B or A
    1488 – A
    1474 – A or C
    1461 – ?
    179 – BD?
    705 – DB?
    563 – AD?
    1237 – BD?
    371 – A or D

    Guys please comment this questions.


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