DDP to DDP16 | NetApp | Page 1

mental tusk May 18, 2023, 7:30 PM

#

Hi,
by "accident" we have added two nodes with DDP instead of DDP16 😦 Is there a way to go from DDP to DDP16 without removing and adding again a existing node.

fickle anvil Jul 20, 2023, 2:58 PM

#

I don't have the answer, but how can you tell what type of DDP you have, DDP or DDP16?

mental flicker Aug 3, 2023, 1:07 PM

#

fickle anvil I don't have the answer, but how can you tell what type of DDP you have, DDP or ...

In grid manager, navigate into "nodes", "hardware", then look at Storage RAID mode option

mental flicker Aug 3, 2023, 1:08 PM

#

mental tusk Hi, by "accident" we have added two nodes with DDP instead of DDP16 😦 Is there ...

AFAIK node have to be reinitialized from scratch. Data must be evacuated from the node.

fickle anvil Aug 3, 2023, 1:39 PM

#

Upon this link, it seems DDP16 is only supported on SG5700. https://docs.netapp.com/us-en/storagegrid-116/sg5700/optional-changing-raid-mode-sg5760-only.html
Is it supported on SG6060? My understanding is that we could gain more usable space from DDP16. Is it worth of converting? We have 4 nodes now, and going to have 8 nodes. Thanks for your response @mental flicker

Optional: Change RAID mode (SG5760 only)

If you have an SG5760 with 60 drives, you can change to a different RAID mode to accommodate your storage and recovery requirements. You can only change the ...

mental flicker Aug 3, 2023, 1:55 PM

#

@fickle anvil yes, we have SG6060 and DDP16 and it's supported. We did the reconfiguration when expanding from 4 to 6 nodes using node cloning procedure. It has been not so fast but it works 😉

fickle anvil Aug 3, 2023, 2:38 PM

#

We will also have to convert EC coding from 2+1 to 6+1 when exapnd to 8 nodes. So, these two conversions are separated, my understanding, they will take very long time.

#DDP to DDP16