topic How to destroy the filesystem of a disk in ONTAP Discussions

How to destroy the filesystem of a disk

ANYLINQSUPPORT — Wed, 04 Jun 2025 10:21:40 GMT

Hi,

I am cleaning up an old netapp FAS3250.

When I connect one of the shelfs to the controller, one of the disks seems to be a filesystem disk. See below.

The disk was part of an aggregate, but now it does not participate in an aggreate.

Can you body tell me how to convert the filesystem disk to a spare disk?

nacluster::*> storage disk show -container-type aggregate
Usable Disk Container Container
Disk Size Shelf Bay Type Type Name Owner
---------------- ---------- ----- --- ------- ----------- --------- --------
4.7000025335.0.1 2.68TB 0 0 MSATA aggregate aggr0(2) nacluster-n2
4.7000025335.1.1 2.68TB 0 1 MSATA aggregate aggr0(2) nacluster-n2
4.7000025335.2.1 2.68TB 0 2 MSATA aggregate aggr0(2) nacluster-n2
4.7000025335.9.1 2.68TB 0 9 MSATA aggregate aggr0(1) nacluster-n2
4.7000025335.9.2 2.68TB 0 9 MSATA aggregate aggr0(1) nacluster-n2
4.7000025335.11.2 2.68TB 0 11 MSATA aggregate aggr0(1) nacluster-n2

Thanks.

Henk Snel

Re: How to destroy the filesystem of a disk

AlexDawson — Tue, 15 Jun 2021 12:09:35 GMT

Hi there,

Can you take the system down? You've connected a shelf with a duplicate shelf ID, and the easiest way to fix that is power down, change and power up..

Regarding this issue though.. take the false aggr offline with "storage aggr offline aggr0(2)", then verify the desired data is still online from other aggregates, then run "storage aggr destroy aggr0(2)", and "storage disk zerospares"

Hope this helps!

Re: How to destroy the filesystem of a disk

ANYLINQSUPPORT — Wed, 16 Jun 2021 12:51:59 GMT

Thanks for your solution. Thishas fixed my problem.