topic Re: Disk Assignment in ONTAP Hardware

Disk Assignment

renep — Sat, 12 Nov 2022 17:18:30 GMT

Hello,

I have a FAS8200 2-node cluster with 6 DS224C with SAS drives and I added a single shelf on its own loop with 960GB SSDs. After assigning the disks evenly between each node I can only get 7tb from each aggregate that I create, can assign all the disks to 1 node to make one large aggregate (15TB)? Does that configuration work?

Re: Disk Assignment

Ontapforrum — Sat, 12 Nov 2022 22:05:17 GMT

Yes, it's up to you. Remove disk ownership from Node-2 and assign them to Node-1 and make one big aggregate. Just that you will be putting all the load processing for this aggregate on one particular Node. But that's ok as long as you are aware of the Node resources and load capacity, and you are ok to move volumes from this aggregate to different Node if need arises due to performance issues in future.

Re: Disk Assignment

renep — Mon, 14 Nov 2022 21:46:22 GMT

Thank you. Another option I didn't think about was flexgroup. I can go that route without sacrificing performance on one node.

Re: Disk Assignment

Ontapforrum — Tue, 15 Nov 2022 08:19:00 GMT

Agree, that's another option and a good one.

Re: Disk Assignment

junwang — Wed, 23 Oct 2024 07:02:24 GMT

Hi,renep,

You can do this by removing disk ownership from Node 2 and assigning them to Node 1, then creating a large aggregate and adjusting the maxraidsize of the aggregate to the maximum value. However, doing so will result in excessive load on a single node. If you know about load balancing, you can do this, but the official does not recommend placing all aggregates on a single node.