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"disk zerospares" not zeroing disks that used to be aggr0 on another node in the cluster

mattmusgrove1

Hi, I am reutilizing a DS460C disk shelf in a cluster having retired the nodes which were connected to it. All the disks are showing as zeroed except for the 6 disks which were previously being used as aggr0.

When I removed the nodes from the cluster I did a "Clean configuration and initialize all disks (4)" option from the boot menu.""

All disks are currently owned by the node which it is now connected to. Running disk zerospares nothing happens, I feel I am missing a step, can anyone help?

Thanks

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Accepted answers

mattmusgrove1

This was the solution

How to remove a foreign aggregate (made out of orphaned disks) in ONTAP - NetApp Knowledge Base

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TMACMD

boot to the the Special Boot Menu

go to step 9 -> on both nodes, wait for the ADP menu

on ONE NODE only -> 9a -> READ and answer prompts. WAIT for the prompt to return

On the OTHER NODE only -> 9a -> READ and answer prompts. WAIT for the prompt to return

Now...one more time on the SAME node you just did

-> 9a -> READ and answer prompts.

Watch the OUTPUT. you should see some output that says X of X disks mixed in near the end after it discovers the disks.

If this number MATCHES what you have (60 of 60 -> or whatever), then you can proceed to use option 9b (ADP) or i think 9c (while disks -> I never use this, I use ADP all the time).

If it is NOT selecting all the disks, select option 9e on one node return to the boot menu

Choose option 5 to boot maintenance mode

Answer the prompt to continue

Do what ever commands are needed to remove all ownership of all drives

There a a bunch of commands under "disk" in maint-mode.

After all disks are unowned, return to the special boot menu and try 9a/9b again

mattmusgrove1

Thank you, I should have mentioned that this a live system with other disk shelves so I can't do an option 9b! Will I need to reattach to the old nodes to do this?

mattmusgrove1

This was the solution

How to remove a foreign aggregate (made out of orphaned disks) in ONTAP - NetApp Knowledge Base