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#1 2021-05-04 19:53:48

From: New Hampshire
Registered: 2018-12-10
Posts: 73

Smartest way to format NVMe drives

I'm trying to determine the best way to prepare my nvme drives for a new installation. I'm aware of the nvmc-cli package and the tools that it provides. What I don't know is which ones I should use. I don't get a lot of opportunities to gain experience with nvme dives so I am asking what others have found to be good practices.

In the past I have used 'blkdiscard -f' to wipe my nvme drives but opinions on that seem to vary. I have seen recommendations to avoid the 'nvme sanitize' command altogether. I am considering simply deleting the old namespace and then formatting the drive with a new namespace. I know that 512 byte lba is supported by my drives and that makes it easy to know that I need to use 'ashift=12' when creating my zfs pool.   

# nvme delete-ns /dev/nvme?n?
# nvme format -b 512 -n 1 /dev/nvme?



#2 2021-05-04 20:14:51

Registered: 2017-07-28
Posts: 1,155

Re: Smartest way to format NVMe drives

You can use wipefs to delete all signatures and return drive to raw state.


#3 2021-05-04 23:15:22

Bug Wrangler
Registered: 2012-09-01
Posts: 8,488

Re: Smartest way to format NVMe drives

Why are you screwing around with namespaces at all? For the vast majority of cases, you treat an NVME drive just like you would a SATA drive.


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