NVME drives are all null/zero

[dlangille]

Hello,

This is what smart pulls for an NVME drive:

[13:03 r730-01 dvl /usr/local/etc/cron.d] % sudo smartctl -a /dev/nvme0   
smartctl 7.5 2025-04-30 r5714 [FreeBSD 14.3-RELEASE-p3 amd64] (local build)
Copyright (C) 2002-25, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number:                       Samsung SSD 990 EVO Plus 4TB
Serial Number:                      S7U8NJ0Y716854P
Firmware Version:                   2B2QKXG7
PCI Vendor/Subsystem ID:            0x144d
IEEE OUI Identifier:                0x002538
Total NVM Capacity:                 4,000,787,030,016 [4.00 TB]
Unallocated NVM Capacity:           0
Controller ID:                      1
NVMe Version:                       2.0
Number of Namespaces:               1
Namespace 1 Size/Capacity:          4,000,787,030,016 [4.00 TB]
Namespace 1 Utilization:            0
Namespace 1 Formatted LBA Size:     512
Namespace 1 IEEE EUI-64:            002538 5751411bcb
Local Time is:                      Fri Oct  3 13:04:57 2025 UTC
Firmware Updates (0x16):            3 Slots, no Reset required
Optional Admin Commands (0x0017):   Security Format Frmw_DL Self_Test
Optional NVM Commands (0x00df):     Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat Timestmp Verify
Log Page Attributes (0x3f):         S/H_per_NS Cmd_Eff_Lg Ext_Get_Lg Telmtry_Lg Pers_Ev_Lg Log0_FISE_MI
Maximum Data Transfer Size:         128 Pages
Warning  Comp. Temp. Threshold:     81 Celsius
Critical Comp. Temp. Threshold:     85 Celsius

Supported Power States
St Op     Max   Active     Idle   RL RT WL WT  Ent_Lat  Ex_Lat
 0 +     6.00W       -        -    0  0  0  0        0       0
 1 +     6.00W       -        -    1  1  1  1     1700    2100
 2 +     6.00W       -        -    2  2  2  2     3000    6500
 3 -   0.0800W       -        -    3  3  3  3     1600    4600
 4 -   0.0070W       -        -    4  4  4  4     1600   43000

Supported LBA Sizes (NSID 0x1)
Id Fmt  Data  Metadt  Rel_Perf
 0 +     512       0         0

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

SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)
Critical Warning:                   0x00
Temperature:                        37 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    0%
Data Units Read:                    3 [1.53 MB]
Data Units Written:                 0
Host Read Commands:                 60
Host Write Commands:                0
Controller Busy Time:               0
Power Cycles:                       3
Power On Hours:                     44
Unsafe Shutdowns:                   1
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0
Temperature Sensor 1:               55 Celsius
Temperature Sensor 2:               37 Celsius

Error Information (NVMe Log 0x01, 16 of 64 entries)
No Errors Logged

Self-test Log (NVMe Log 0x06, NSID 0xffffffff)
Self-test status: No self-test in progress
No Self-tests Logged

This is what the smart script displays for that drive:

S7U8NJ0Y716854P,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,0,0,0,0,0,0,0,0

perl is not my strong suit... how can I help?

[dlangille]

This might be useful. It does NVMe temperatures: https://github.com/vermaden/sensors/blob/master/sensors