nvme detached

[Dan Langille]

Dan Langille wrote:
>
> On Wed, Aug 4, 2021, at 2:04 PM, Graham Perrin wrote:
>>
>> On 04/08/2021 18:45, Dan Langille wrote:
>>
>>>
>>> On Wed, Aug 4, 2021, at 1:35 PM, Graham Perrin wrote:
>>>
>>>>
>>>> A normal run of StressDesk might be enough to expose a problem; I
>>>> recently had a new drive (less than 100 hours' use) that failed
>>>> consistently after around seven minutes of the run (before filling the
>>>> file UFS system).
>>>
>>> Is that sysutils/stressdisk?
>>
>>
>> Yes, sorry for the typo.
>
>
> stressdisk now underway:
>
> Bytes read:      26649996 MByte (1633.90 MByte/s)
> Bytes written:     235880 MByte ( 491.77 MByte/s)
> Errors:                 0
> Elapsed time:  4h40m0.000371674s
>
> FYI, it seems my newly arrived NVME is not actually new.
>
> * gpart shows a partition.
> * smarctl says 4 power on hours
> * 56 power cycles
> * 104GB written
>
> https://dan.langille.org/2021/08/09/i-bought-a-new-nvme-drive-or-did-i/




$ sudo gpart create nvd0
$ sudo gpart create -s gpt nvd0
$ sudo gpart add -a 4k -t freebsd-zfs nvd0
$ sudo zpool create nvd0 /dev/nvd0p1
$ sudo chown dvl:dvl /nvd0
$ stressdisk run /nvd0/ -duration 1h

I returned that unit and got another.

2021/08/17 15:05:28 Exiting after running for > 1h0m0s
2021/08/17 15:05:28
Bytes read:       2970440 MByte (1574.04 MByte/s)
Bytes written:     229910 MByte ( 134.56 MByte/s)
Errors:                 0
Elapsed time:  1h0m0.00184772s

2021/08/17 15:05:28 PASSED with no errors

In that hour, it read just over 3 TB (see smartctl output below)

[dvl at test /nvd0]$ zpool list nvd0
NAME   SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP 
HEALTH  ALTROOT
nvd0   232G   224G  8.25G        -         -    36%    96%  1.00x ONLINE  -

[dvl at test /nvd0]$ zpool list nvd0
NAME   SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP 
HEALTH  ALTROOT
nvd0   232G   224G  8.25G        -         -    36%    96%  1.00x ONLINE  -
[dvl at test /nvd0]$ sudo smartctl -a /dev/nvme0
smartctl 7.2 2020-12-30 r5155 [FreeBSD 13.0-RELEASE-p3 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number:                       WDC WDS250G2B0C-00PXH0
Serial Number:                      [redacted]
Firmware Version:                   233010WD
PCI Vendor/Subsystem ID:            0x15b7
IEEE OUI Identifier:                0x001b44
Total NVM Capacity:                 250,059,350,016 [250 GB]
Unallocated NVM Capacity:           0
Controller ID:                      1
NVMe Version:                       1.4
Number of Namespaces:               1
Namespace 1 Size/Capacity:          250,059,350,016 [250 GB]
Namespace 1 Formatted LBA Size:     512
Namespace 1 IEEE EUI-64:            001b44 8b4111e9c1
Local Time is:                      Tue Aug 17 15:11:06 2021 UTC
Firmware Updates (0x14):            2 Slots, no Reset required
Optional Admin Commands (0x0017):   Security Format Frmw_DL Self_Test
Optional NVM Commands (0x005f):     Comp Wr_Unc DS_Mngmt Wr_Zero 
Sav/Sel_Feat Timestmp
Log Page Attributes (0x1e):         Cmd_Eff_Lg Ext_Get_Lg Telmtry_Lg 
Pers_Ev_Lg
Maximum Data Transfer Size:         128 Pages
Warning  Comp. Temp. Threshold:     80 Celsius
Critical Comp. Temp. Threshold:     85 Celsius
Namespace 1 Features (0x02):        NA_Fields

Supported Power States
St Op     Max   Active     Idle   RL RT WL WT  Ent_Lat  Ex_Lat
0 +     3.50W    2.00W       -    0  0  0  0        0       0
1 +     2.40W    1.80W       -    0  0  0  0        0       0
2 +     1.90W    1.50W       -    0  0  0  0        0       0
3 -   0.0250W       -        -    3  3  3  3     3900   11000
4 -   0.0050W       -        -    4  4  4  4     5000   44000

Supported LBA Sizes (NSID 0x1)
Id Fmt  Data  Metadt  Rel_Perf
0 +     512       0         2
1 -    4096       0         1

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02)
Critical Warning:                   0x00
Temperature:                        37 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    0%
Data Units Read:                    5,980,477 [3.06 TB]
Data Units Written:                 472,529 [241 GB]
Host Read Commands:                 23,385,657
Host Write Commands:                1,957,158
Controller Busy Time:               70
Power Cycles:                       3
Power On Hours:                     1
Unsafe Shutdowns:                   0
Media and Data Integrity Errors:    0
Error Information Log Entries:      1
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0

Error Information (NVMe Log 0x01, 16 of 256 entries)
No Errors Logged

[dvl at test /nvd0]$