unable to write to last block of device...

[eyemacrumors]

Hi I'm trying to use a samsung 960 pro NVME M.2 SSD in an external PCIE box as a boot drive.
Mojave recognizes the disk but says it's unreadable with the 3 options, from which i chose to initialize.
Unfortunately I'm unable to format the SSD (in any format), I'm getting "unable to write to last block of device..." error.
I tried to erase with diskutil but getting the same error.
Tried to erase after booting in recovery mode, with no avail.
What other options do i have, or must i conclude the SSD is anomalous ?

 

[Fishrrman]

Things I would try:

- Try to format the drive on another computer, Mac or Windows.

- Could it be the "pcie box" (not the drive itself)? The controller "in the box" is incompatible with the Mac?

- You might consider a USB3.1 gen2 enclosure that is designed for nvme drives. There are numerous ones available on amazon, etc.

 

[eyemacrumors]

Things I would try:

- Try to format the drive on another computer, Mac or Windows.

- Could it be the "pcie box" (not the drive itself)? The controller "in the box" is incompatible with the Mac?

- You might consider a USB3.1 gen2 enclosure that is designed for nvme drives. There are numerous ones available on amazon, etc.

thanks for the feedback. Can you give me a few ideas for such USB enclosures ?

 

[Fishrrman]

"Can you give me a few ideas for such USB enclosures ?"

Here are a few from amazon:
https://www.amazon.com/gp/product/B07N48N5GR/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1

https://www.amazon.com/dp/B07F9QDBG...&pd_rd_r=08662b5a-f7d8-11e8-8c6b-c9c03a4d03cf

https://www.amazon.com/XT-XINTE-USB...1549241767&sr=8-17&keywords=usb3.1+gen+2+nvme

https://www.amazon.com/gp/product/B...c8ce393475be4d7e5110949fb7b00f&language=en_US

I have no idea whether the cheaper ones would be any better or make any difference at all -- I haven't bought one yet.

In the past, I've had good experiences with products from plugable.com.