A client had a very old NetApp filer (FAS3020) that has now been completely decommissioned. In order to purge the data you have a number of options. First, all the volumes and aggregates were deleted save the root volume and aggregate where ONTAP resides.
These spare disk were zeroed with the following command – disk zero spares
There is also the following command – disk sanitize, but you need to licensed. In our case we didn’t have a license nor the option to enable. The filer was running very old code. This also only purges data on disks that are spares.
NetApp link to disk sanitize command https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-BE1AF56B-40DD-4C42-99D6-76EEC9225DC5.html
In order to remove the data on the root volume and aggregate we initialized the SAN.
WARNING – running this will result in data loss!
If you will be reusing the filer be sure to save your license configuration. Once initialized this info will be lost.
- Connect to your filer via Console cable
- Reboot filer
- Enter the Special Boot Menu with Ctrl-C when prompted
- Select option 4
Once all the drives have been initialized – ONTAP will create a new aggregate and vol0. You will then be prompted to setup the filer with configuration data.