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rated 0 times [  14] [ 0]  / answers: 1 / hits: 25854  / 2 Years ago, wed, april 27, 2022, 5:14:18

Since SSD has write amplification, I want to reset the SSD to the initial out-of-box performance. Most tutorials are for SATA SSD (hdparm --secure-erase), I want to know how to erase a partition of NVMe SSD (maybe use nvme command?).


One more question: does dd if=/dev/zero of=/dev/nvme0n1 help? Or does fio --filename=/dev/nvme1n1 --direct=1 --buffered=0 --rw=trim --bs=4k --size=100G --numjobs=16 --iodepth=32 --group_reporting --name=trim help?


Thanks!


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 Answers
1

To totally erase a NVMe drive.


This will erase entire drive.


You may need to first install nvme - the NVMe storage command line interface utility (nvme-cli). Then review commands and list all nvme devices. List wil also show firmware revision & you should check that you have latest firmware.


sudo apt install nvme-cli

nvme help

nvme --help

nvme --help format

sudo nvme list

sudo nvme format -s1 <device>



    fred@z170-focal-k:/mnt/data$ sudo nvme list

[sudo] password for fred: 

Node             SN                   Model                                    Namespace Usage                      Format           FW Rev  

---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------

/dev/nvme0n1     S4P2NF0M514514L      Samsung SSD 970 EVO Plus 500GB           1         164.30  GB / 500.11  GB    512   B +  0 B   2B2QEXM7

[#2040] Thursday, April 28, 2022, 2 Years  [reply] [flag answer]
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