The other mode is Clustered ONTAP which is based on the GX (aka Spinnaker) version of ONTAP. It's intended for those running on that platform today. In 8.1, there will be a single ONTAP once again. 8.0 merges the code itself. We expect just about all current 7.x customers to move up to 7-mode and GX customers to move to clustered mode when going to 8.0.

As far as migrations to 64-bit aggrs, that will depend but it will have to be logical not physical (no VSM, no vol/aggr copy). The right way will vary on your environment so in general I would recommend customers work with their account team and talk to the migration experts to talk about your specific scenario. It may not make sense to migrate in some cases as you can have both types of aggrs on a system. But even if you don't buy a migration service, talking to those folks can be beneficial.

-- Adam Fox ------------------------ Typed with my thumbs on a very small keyboard.

----- Original Message ----- From: Bert Kiers kiersb@xs4all.net To: Fox, Adam Cc: lists@up-south.com lists@up-south.com; Toasters toasters@mathworks.com Sent: Fri Jul 30 18:10:42 2010 Subject: Re: max aggr size of 16TB

On Fri, Jul 30, 2010 at 05:20:17PM -0400, Fox, Adam wrote:

Not exactly true. 7-mode in ONTAP 8 does have larger than 16T aggregates, although it is for new aggregates. How large depends on your model, but it can be as high as 100T out of the gate with future increases to come in future releases.

That is good to hear. But then, what is the difference between 7-mode and native?

Any tips on how to migrate? We are thinking about breaking the sync- mirror relation in out FMC, the recreating one aggr on one side, do vol copy, then destroying the other side and reinitialize the sync mirror. The vol copy will however take too long as far as we know now. Now we have several aggr with 2 volumes each, close to 16 TB, with email and we cannot afford more than 1 or 2 hours downtime.

Even at 10 GbE (which interfaces we don't have), it will take minimum 4.5 hours that way :( And breaking the mirror makes me nervous.

Grtnx,