stevemilner
1 Nickel

Commands to create a local Clone from R2 devices

Hi,

We need to create local Clones from SRDF R2 copies at a remote VMAX for DR purposes.

I need to automate it from a Unix server so we can take regular copies.

Can anyone point me in the direction of a document which shows exactly how to do this please ? I just need the symcli commands.

I've had a look at the white paper here ( https://www.emc.com/collateral/white-papers/h8981-vmax10k-timefinder-recoverpt-local-repl-wp.pdf ) but it's missing most of the commands I need.

Many thanks,

Steve.

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5 Replies
dynamox
6 Thallium

Re: Commands to create a local Clone from R2 devices

create clones using Timefinder ?

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Jasonc1
3 Argentium

Re: Commands to create a local Clone from R2 devices

The basic clone command syntax is:

symclone -g dg_name -tgt create -diff | activate -consistent | recreate | terminate

I suggest you take a look at the Solutions Enabler Timefinder CLI product guide for more detail...

For example, The -RDF parameter can be added if running the clone of the R2 from the R1 side.

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stevemilner
1 Nickel

Re: Commands to create a local Clone from R2 devices

Thanks for the advice Jason. I've followed the steps in the Timefinder CLI guide which I belive are thus,

1. Check status of RDF group
symdg show ax061_2                                            

2. Add remote target into RDF group
symdg -g ax061_2 add dev 024B -rdf -tgt                 

3. Check okay
symdg show ax061_2

Standard (STD) Devices (2):

        {

        ----------------------------------------------------------------------------------

                                                      Sym  Device                     Cap

        LdevName              PdevName                Dev  Config        Att. Sts     (MB)

        ----------------------------------------------------------------------------------

        DEV001                N/A                     29C2 RDF1+TDEV          RW     33792

        DEV002                N/A                     29C3 RDF1+TDEV          RW     33792

        }


TGT Devices Remotely-associated (TGT RDF) (1):

        {

        ----------------------------------------------------------------------------------

                                                      Sym  Device                     Cap

        LdevName              PdevName                Dev  Config        Att. Sts     (MB)

        ----------------------------------------------------------------------------------

        RTGT001               N/A                     024B TDEV               RW     33792

        }

                               

4. Establish clone pairs for targets and source devices
symclone -g ax061_2 establish -full -rdf DEV001 -tgt ld RTGT001


Execute remote 'Full Establish' operation for the 3 specified devices
in device group 'ax061_2' (y/) ? y

Remote 'Full Establish' operation execution is in progress for the device list in
device group 'ax061_2'. Please wait...

Could not select requested device(s) from the specified device group


Anyone seen this before ?

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Jasonc1
3 Argentium

Re: Commands to create a local Clone from R2 devices

There is a slight syntax issue in the establish. This will work:

symclone -g ax061_2 establish -full DEV001 -tgt sym ld RTGT001

seancummins
2 Iron

Re: Commands to create a local Clone from R2 devices

Just FYI -- if you're writing your own automation to periodically refresh a Gold BCV/Clone off of SRDF/A R2 volumes, you may also want to consider using symrecover for this. In addition to providing a built-in mechanism for recovering from SRDF/A session drops (CACA errors), symrecover also has functionality for periodically refreshing BCVs/Clones off of Async R2 devices. The Solutions Enabler SRDF CLI Guide has more detail on symrecover options & settings.

Thanks,

- Sean