Re: 7MTT - can it work with already snapmirrored volumes?

John,

Back in the days when 7MTT was very limited, I moved hundreds of volumes
between 7-mode systems and C-mode using SnapMirrors.  I believe the process
is still valid:
https://docs.netapp.com/us-en/ontap-7mode-transition/snapmirror/task_transitioning_a_stand_alone_volume.html

The key was setting up the snapmirrors on the C-mode target with the "-type
TDP" flag.

Regards,
Brian Jones



On Thu, Feb 17, 2022 at 2:02 PM John Stoffel <[email protected]> wrote:

>
> Guys,
> Trying to migrate from an ancient 7-mode 8.1.3 system to a slightly
> newer cDOT 9.5 system.  I was smart and pre-snapmirrored the
> volumes. But I'd like for 7mtt to copy the CIFS shares and such.
> But... 7mtt v3.4 isn't happy with volumes which already have
> snapmirror relationships.
>
> The source 7-mode system has snapmirrors to both another 7-mode
> system, as well as to the new cDOT system VServer called 'data'.
>
> I'm stuck at "Plan and Design" "Map Volumes" where I've picked the
> source and destination volumes (which already exist on the
> destination) but which it won't let me use because there isn't enough
> space on the aggregeates due to the currently existing volumes.
>
> Fun.
>
> Yes, I'm probably an idiot for having done this backwards... any maybe
> the real answer is to just do the cutover and re-build the cifs shares
> by hand.  Ugh....
>
> John
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