SnapVault SVM-DR destination volumes

[TAO1]

Hi,

Is it possible to SnapVault a SVM-DR destination volume?

SVM-DR:SourceVol ==> SVM:DestVol[SV:SourceVol] ==> SnapVault:DestVol

I can't find a definitive statement in the documentation.

Thanks

[Winchester]

Yep, that's a SnapMirror mirror-vault cascade deployment. Here is the documentation,  Fan-out and cascade data protection deployments

Also see, Ensure a common Snapshot copy in a mirror-vault deployment and About SnapMirror SVM replication 

[TAO1]

Thanks for the reply, though there is nothing in that article mentioning SVM-DR cascades. In fact, one of the articles seems to suggest that you can't cascade from a SVM-DR destination:

Have you actually configured a SVM-DR cascade or are you just working from the documentation?

Anyone form NetApp monitoring these forums?

Thanks

[mgmt-gateway · Accepted solution]

SVM-DR does not support cascade snapmirror so it would not work for your scenario.

[ansley_tj]

@mgmt-gateway , 

If you use identity-preserve false, you can start the destination SVM (from your SVM-DR solution) and then you can use SnapMirror to vault the individual FlexVol volumes to a tertiary site or take local Snapshot copies of the individual FlexVol volumes in the SVM. 

Source =======================>Dest1==================>Dest2

                        SVM-DR                                                        SnapMirror

          (-identity preserve false)                                          (vault)

You cannot create a cascade SVM-DR like this:

Source ==============>Dest1============>Dest2

                        SVM-DR                              SVM-DR

[TAO1]

@ansley_tj , thanks that's a useful option - where is that buried in the documentation please?

[ansley_tj]

It is short-but-sweet:

Is it possible to enable destination SVM within SVM DR for read-only access to data? - NetApp Knowledge Base

[TAO1]

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@ansley_tj wrote:

It is short-but-sweet

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You weren't joking 🙂 - thank again

[Winchester]

Apparently I was wrong whereas SVM-DR is concerned.

https://kb.netapp.com/Advice_and_Troubleshooting/Data_Protection_and_Security/SnapMirror/Can_I_use_SVM-DR_in_a_cascade_configuration