22年11月入手一块500G的英睿达用作Unraid的缓存盘，到上月底提示已超TBW已超92%，硬盘灯一直闪黄。看了下硬盘的Smat信息：
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SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 42 Celsius
Available Spare: 100%
Available Spare Threshold: 5%
Percentage Used: 92%
Data Units Read: 33,904,469 [17.3 TB]
Data Units Written: 311,969,736 [159 TB]
Host Read Commands: 346,408,409
Host Write Commands: 2,756,405,124
Controller Busy Time: 3,749
Power Cycles: 66
Power On Hours: 15,191
Unsafe Shutdowns: 25
Media and Data Integrity Errors: 0
Error Information Log Entries: 105
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Temperature Sensor 1: 42 Celsius
Temperature Sensor 2: 52 Celsius
Temperature Sensor 8: 42 Celsius
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平时没有挂PT和BT的习惯，不可能写了159TB吧。然后换了一块三星990 Pro 1TB，这才9天又写了3.5T了，这样子1TB也用不到4年。。。
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SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 41 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 0%
Data Units Read: 336,209 [172 GB]
Data Units Written: 6,817,707 [3.49 TB]
Host Read Commands: 3,642,669
Host Write Commands: 30,875,679
Controller Busy Time: 302
Power Cycles: 2
Power On Hours: 200
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: 41 Celsius
Temperature Sensor 2: 43 Celsius
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想问问大家的缓存也是这样的写入量吗？

是开心版吗？会不会被后台挖矿了

流量和CPU状态还算正常

仅讨论ssd，消费级的做缓存盘，填太满会增加写入放大倍率

我也一样，固态做缓存系统盘，天天都在写入，读取反而很少有真蛋疼，完全不知道为什么会这样？

把Syncthing里面反复同步，但没有备份意义的文件排除了；
另外把netdata关掉了。
观察几天，看看写入量是否会减小