It’s still at 0.42% of one pass
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Yeah, it shouldn’t be this slow. I think it’s completely failing to access the drive.
Yeah, I don’t think it is working right in that case. But it’s up to you if you wanted to leave it for the weekend to see how far it gets
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I just stopped it. I think I’m going to try completely overwriting the drive with dd overnight and try again tomorrow.
Nevermind, dd can’t write to this thing either. I’m going to do some more research and try again tomorrow.
I would really shutdown, and check things before you do.
If the drive is on a converter card, maybe plug it into a different m.2 port?
Just in case a bad contact somewhere isn’t causing problems.
Also make sure Fedora is pretty recent incase it needs newish drivers in the kernal
It’s a PCIe adapter rather than one of those mini-SAS M.2 ones, so I think I’ll shut down and try reseating the card.
Thanks for all the help @Trooper_ish, always nice to have someone else give you a sanity check.
I’ll post again tomorrow.
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No worries.
I was hoping oneone would step in who’d played with U.2 drives, but not yet 
If you bought it recently…I’d return it
If I can’t get it working this weekend, I’ll return it
After running
hdparm -I /dev/nvme0n1
There is an error:
/dev/nvme0n1:
HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
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Well gosh darn. I didn’t realise hdparm only works with ATA devices.
Might have a look at NVMe-cli program in the repositories?
Hey, I have a working SSD now. Nice 
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Well, you can access it… let us know after you use it if there are more issues…
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This is what I did, for future refence:
[root@saika dev]# nvme format /dev/nvme0n1
NVME Admin command error:INVALID_FORMAT: The LBA Format specified is not supported. This may be due to various conditions(10a)
[root@saika dev]# nvme id-ns /dev/nvme0n1
NVME Identify Namespace 1:
nsze : 0x1d1c0beb0
ncap : 0x1d1c0beb0
nuse : 0x1d1c0beb0
nsfeat : 0
nlbaf : 3
flbas : 0x11
mc : 0x1
dpc : 0x1c
dps : 0x3
nmic : 0x1
rescap : 0x7e
fpi : 0
dlfeat : 0
nawun : 0
nawupf : 0
nacwu : 0
nabsn : 0
nabo : 0
nabspf : 0
noiob : 0
nvmcap : 4000787030016
nsattr : 0
nvmsetid: 0
anagrpid: 0
endgid : 0
nguid : 00000000000000000000000000000000
eui64 : 0000000000000000
lbaf 0 : ms:0 lbads:9 rp:0
lbaf 1 : ms:8 lbads:9 rp:0x1 (in use)
lbaf 2 : ms:64 lbads:12 rp:0x1
lbaf 3 : ms:0 lbads:12 rp:0
[root@saika dev]# nvme list
Node SN Model Namespace Usage Format FW Rev
/dev/nvme0n1 2102351GUB9WJ7000138 HSSD-D5223PM5D00 1 4.00 TB / 4.00 TB 512 B + 8 B 1562
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[root@saika dev]# nvme format /dev/nvme0n1 --lbaf=0
Success formatting namespace:1
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Very nice!
Will be cool to see some bench marks on that now but that’s just gratuitous
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It’s running in PCIe 3.0 x2 mode right now, I’ll try and fix that before benchmarks.
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