TDEV in RDF1 device group

Question

We have many use cases for clones of RDF1 devices. We usually create RDF1 device groups in GNS and add the BCV flag to clones so they can be added to the GNS device groups. We now have use cases where we would like to use TDEVs as clones. To my understanding you cannot add a TDEV to an RDF1 device group because there is no way to add the BCV flag to them. Does anyone have any ideas for how we can support TDEV clones in RDF1 type GNS device groups?

dynamox · Answer

i don't use GNS but this should work:

add your clones to device group with -tgt flag, so when you run "symdg show" it will look like this:

[root@~]# symdg show test

Group Name: test

    Group Type                                   : REGULAR
    Device Group in GNS                          : No
    Valid                                        : Yes
    Symmetrix ID                                 : 000000000123
    Group Creation Time                          : Tue Jul 13 13:12:10 2010
    Vendor ID                                    : EMC Corp
    Application ID                               : SYMCLI

    Number of STD Devices in Group               :    1
    Number of Associated GK's                    :    0
    Number of Locally-associated BCV's           :    0
    Number of Locally-associated VDEV's          :    0
    Number of Locally-associated TGT's           :    1
    Number of Remotely-associated VDEV's(STD RDF):    0
    Number of Remotely-associated BCV's (STD RDF):    0
    Number of Remotely-associated TGT's(TGT RDF) :    0
    Number of Remotely-associated BCV's (BCV RDF):    0
    Number of Remotely-assoc'd RBCV's (RBCV RDF) :    0
    Number of Remotely-assoc'd BCV's (Hop-2 BCV) :    0
    Number of Remotely-assoc'd VDEV's(Hop-2 VDEV):    0
    Number of Remotely-assoc'd TGT's (Hop-2 TGT) :    0

    Standard (STD) Devices (1):
        {
        --------------------------------------------------------------------
                                                      Sym               Cap
        LdevName              PdevName                Dev Att. Sts     (MB)
        --------------------------------------------------------------------
        DEV001                N/A                     0406      RW     17263
        }

    TGT Devices Locally-associated (1):
        {
        --------------------------------------------------------------------
                                                      Sym               Cap
        LdevName              PdevName                Dev Att. Sts     (MB)
        --------------------------------------------------------------------
        TGT001                N/A                     0407      RW     17263
        }

so now if you need to sync device 0406 to 0407, you can run "symclone -g test create -tgt" and then the same for "symclone activate"

tommyg1 · Answer

Works like a champ, thanks!!

Symmetrix

TDEV in RDF1 device group

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