Yes, you can use 7mtt CLI to recognise existing TDP type snapmirror relationships.
Cheers
Andrew
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________________________________ From: Toasters toasters-bounces@teaparty.net on behalf of Graham McGeown mcg.graham@gmail.com Sent: Friday, February 18, 2022 7:27:36 AM To: John Stoffel john@stoffel.org Cc: Toasters toasters@teaparty.net Subject: Re: 7MTT - can it work with already snapmirrored volumes?
I'm fairly sure you can do this, but you have to set up the transition project using the 7MTT CLI
Cheers
Graham
On Fri, 18 Feb 2022, 6:26 am John Stoffel, <john@stoffel.orgmailto:john@stoffel.org> wrote:
"Brian" == Brian Jones <bjones@aggiejones.commailto:bjones@aggiejones.com> writes:
Brian, Thanks for the quick reply, but maybe I wasn't clear here. I'm trying to use 7mtt to make sure I get all the CIFS shares moved over properly. But I had already created the destination volumes and snapmirrored them to the new cDOT system.
But 7mtt was adamant that *it* had to create these new volumes, I couldn't figure out how to tell it to just use the existing snapmirror relationships that were already there.
Oh well, I blew it all away and just restarted it. Worse comes to worse, I'll push out the migration a few weekends, which isn't bad in the end because it's been in process for years... the customer just never got interested in doing their side of the project. Oh well...
Brian> Back in the days when 7MTT was very limited, I moved hundreds Brian> of volumes between 7-mode systems and C-mode using Brian> SnapMirrors. I believe the process is still valid:
Brian> https://docs.netapp.com/us-en/ontap-7mode-transition/snapmirror/task_transit...
Brian> The key was setting up the snapmirrors on the C-mode target Brian> with the "-type TDP" flag.
Brian> On Thu, Feb 17, 2022 at 2:02 PM John Stoffel <john@stoffel.orgmailto:john@stoffel.org> wrote:
Brian> Guys, Brian> Trying to migrate from an ancient 7-mode 8.1.3 system to a slightly Brian> newer cDOT 9.5 system. I was smart and pre-snapmirrored the Brian> volumes. But I'd like for 7mtt to copy the CIFS shares and such. Brian> But... 7mtt v3.4 isn't happy with volumes which already have Brian> snapmirror relationships.
Brian> The source 7-mode system has snapmirrors to both another 7-mode Brian> system, as well as to the new cDOT system VServer called 'data'.
Brian> I'm stuck at "Plan and Design" "Map Volumes" where I've picked the Brian> source and destination volumes (which already exist on the Brian> destination) but which it won't let me use because there isn't enough Brian> space on the aggregeates due to the currently existing volumes.
Brian> Fun.
Brian> Yes, I'm probably an idiot for having done this backwards... any maybe Brian> the real answer is to just do the cutover and re-build the cifs shares Brian> by hand. Ugh....
Brian> John Brian> _______________________________________________ Brian> Toasters mailing list Brian> Toasters@teaparty.netmailto:Toasters@teaparty.net Brian> https://www.teaparty.net/mailman/listinfo/toasters
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