Mailing List Archive

8.2 CDOT Snapmirror reverse resync
Hi folks,

If I have volume A on cluster 1 snapmirrored to volume B on cluster 2 and I do the following:


* Break the snapmirror relationship

* Resync<https://library.netapp.com/ecmdocs/ECMP1366832/html/snapmirror/resync.html> the snapmirror from cluster 1 using the -source-path of cluster 2 volume B (backward from what I just broke)

What should happen is that volume B on cluster 2 is now RW, volume A on cluster 1 is DP (read only), and no full sync is done over the replication network, right? That's how it worked in 7-mode, but I haven't done this in CDOT yet.

Thanks!

Basil

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Re: 8.2 CDOT Snapmirror reverse resync [ In reply to ]
Hi Bazza

You also need to make a new SnapMirror relationship for that reverse direction first:

Something like
Snapmirror create -source-path <cluster2 vol> -destination-path <cluster1 vol>

But yes correct no full transfer required just the latest common snapshot

Graham

> On 13 Aug 2016, at 5:59 AM, BERNTSEN Basil <basil.berntsen-ext@socgen.com> wrote:
>
> Hi folks,
>
> If I have volume A on cluster 1 snapmirrored to volume B on cluster 2 and I do the following:
>
> · Break the snapmirror relationship
> · Resync the snapmirror from cluster 1 using the -source-path of cluster 2 volume B (backward from what I just broke)
>
> What should happen is that volume B on cluster 2 is now RW, volume A on cluster 1 is DP (read only), and no full sync is done over the replication network, right? That's how it worked in 7-mode, but I haven't done this in CDOT yet.
>
> Thanks!
>
> Basil
>
> *************************************************************************
> This message and any attachments (the "message") are confidential, intended solely for the addressee(s), and may contain legally privileged information. Any unauthorized use or dissemination is prohibited. E-mails are susceptible to alteration. Neither SOCIETE GENERALE nor any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified. Please visit http://sgasdisclosure.com for important information regarding SG Americas Securities, LLC (“SGAS”). Please visit http://swapdisclosure.sgcib.com for important information regarding swap transactions with SOCIETE GENERALE.
> *************************************************************************
>
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