total bytes written

smartctl -A /dev/nvme0
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-5.19.0-1-amd64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF SMART DATA SECTION ===
SMART/Health Information (NVMe Log 0x02)
Critical Warning:                   0x00
Temperature:                        49 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    0%
Data Units Read:                    5,736,028 [2.93 TB]
Data Units Written:                 6,598,129 [3.37 TB]
Host Read Commands:                 67,548,593
Host Write Commands:                113,248,572
Controller Busy Time:               0
Power Cycles:                       530
Power On Hours:                     5,184
Unsafe Shutdowns:                   44
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0


用这个命令提取关键数据
smartctl -A /dev/nvme0 | /bin/awk '$0~/Written/{ print strftime("%Y-%m-%d %H:%M:%S"), $3,$4,$5$6}'

查看系统中的nvme

nvme list
Node                  SN                   Model                                    Namespace Usage                      Format           FW Rev  
--------------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
/dev/nvme0n1          LEN494R001122        KINGBANK KP230 Pro                       1           1.02  TB /   1.02  TB    512   B +  0 B   V1.9.0

也可以nvme命令 查看 smart信息， data_units_written就是写入数据

 nvme smart-log /dev/nvme0
Smart Log for NVME device:nvme0 namespace-id:ffffffff
critical_warning			: 0
temperature				: 50 C (323 Kelvin)
available_spare				: 100%
available_spare_threshold		: 10%
percentage_used				: 0%
endurance group critical warning summary: 0
data_units_read				: 5,736,025
data_units_written			: 6,594,152
host_read_commands			: 67,548,556
host_write_commands			: 112,929,798
controller_busy_time			: 0
power_cycles				: 530
power_on_hours				: 5,184
unsafe_shutdowns			: 44
media_errors				: 0
num_err_log_entries			: 0
Warning Temperature Time		: 0
Critical Composite Temperature Time	: 0
Thermal Management T1 Trans Count	: 0
Thermal Management T2 Trans Count	: 0
Thermal Management T1 Total Time	: 0
Thermal Management T2 Total Time	: 0

距离 600TBW 还差得远