If not for the onboard adp,  Aggregate relocation (arl) may have been an option to swing the disks over to another system in place - - maybe.   But on this case, I think you'll need some swing disk to make this work.

On Tue, Mar 28, 2017 at 3:09 PM, Mike Gossett
<cmgossett@gmail.com> wrote:
You'll need at least 4 10GB switch ports - the process to convert from switchless to switched isn't that bad: http://www.rejected.io/2014/09/netapp-cluster-mode-converting-switchless-to-switched-cluster/

Assuming you have enough capacity on the new disk purchased with the 8200, your best bet is to move all the volumes to new disk and then swing the other shelves (including the converted 2552).  

Disabling ADP on those disks was, IIRC, a pain when I've done it in the past.  I think I would get all the data \ other shelves to the 8200, and then before converting the 2552 to a shelf, disable ADP and wipe disks and remove ownership.  From loader, I believe the command was: setenv root-uses-shared-disks? false 

As ADP is only supported on the on-board disk, I'm assuming that you have one or more aggregates that can be moved.  https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-85C8CF29-1FF6-4DC1-9835-EB89E7EA1BF6.html is the procedure to swing the disk manually if you aren't logically moving the data onto new disks.



On Tue, Mar 28, 2017 at 1:44 PM, Chris Good <chris@g2.nu> wrote:
We're keeping data on the current disk but clearly we have to buy new disk for the root volumes since Netapp won't let you use ADP on the 8200.  Converting the FAS2552 to a shelf is the endgame.

Currently we don't have cluster switches but by the sounds of it that is going to be an essential component in the migration.  What the steps are for that migration is the bit that nobody seems to be able to figure out :(

On 28 March 2017 at 18:03, Fred Grieco <fredgrieco@yahoo.com> wrote:
Are you migrating to a system with new disk?  Or are you keeping the current data on the current disk?  

Do you have cluster switches that came with the 8200?

On Tue, Mar 28, 2017 at 12:57 PM, Chris Good
<chris@g2.nu> wrote:
Folks,

Currently we have a FAS2552 switchless cluster running 9.1.  We're planning an upgrade to FAS8200 and considering our migration options.  Netapp themselves aren't being terribly forthcoming on the best route to do this. 

I had hoped that upgrading from a FAS25xx would be a common thing with a reference workflow to go with it.  Maybe things are complicated somewhat because the FAS2552 runs ADP and the FAS8200 doesn't.  Has anyone been through a similar process or have any recommendations for a route to achieve this?

Thanks,

Chris
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