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From: Jeff Chua <jeff.chua.linux@gmail.com>
To: Ming Lei <tom.leiming@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: How to secure erase PCI-E NVME SSD connected via USB3?
Date: Wed, 1 Aug 2018 22:52:00 +0800	[thread overview]
Message-ID: <CAAJw_Zvaw8yoyejg5T6CtRFjoS4i_EBYKRVWocpH+mpwfaVC1Q@mail.gmail.com> (raw)
In-Reply-To: <CAAJw_ZtZ8hXi_B6+duiQYpaeSsQ7BQD-KwtE3H6K8Y8O8pAuig@mail.gmail.com>

On Wed, Aug 1, 2018 at 1:02 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> On Tue, Jul 31, 2018 at 7:07 PM, Ming Lei <tom.leiming@gmail.com> wrote:
>> On Sun, Jul 29, 2018 at 5:09 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
>>> I'm testing the USB3-to-PCI-E NVME SSD. It's works using uas module,
>>> recognized it as /dev/sda.
>>>
>>> Since it's an USB device, the nvme-cli tools won't work, nor does
>>> hdparm, as it's a NVME SSD.
>>>
>>> So, how to secure-erase the NVME SSD connected via the JMS583 chip?
>>
>> You may try 'blkdiscard --secure' and see if you are luck.
>
> Interesting, will try that.

# blkdiscard --secure /dev/sda
blkdiscard: /dev/sda: BLKSECDISCARD ioctl failed: Operation not supported

# hdparm --user-master u --security-erase p /dev/sda
(returns immediately and does nothing).

I've tried hdparm on an SSD connected via USB3 and it secure-erased ok.

Anyone working on this?

Thanks,
Jeff

  reply	other threads:[~2018-08-01 14:52 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-29  9:09 How to secure erase PCI-E NVME SSD connected via USB3? Jeff Chua
2018-07-31 11:07 ` Ming Lei
2018-08-01  5:02   ` Jeff Chua
2018-08-01 14:52     ` Jeff Chua [this message]
2018-08-02 12:29       ` Alan Cox
2018-08-02 12:56         ` Jeff Chua

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