Total Host Writes Higher Than Host Written

[Tragicdice]

I'm using smartctl to check my NVME drive health and it says I have written a total of 32TB and read 25TB:

 

SMART/Health Information (NVMe Log 0x02)
Critical Warning:                   0x00
Temperature:                        43 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    10%
Data Units Read:                    50,336,684 [25.7 TB]
Data Units Written:                 64,200,028 [32.8 TB]
Host Read Commands:                 466,089,068
Host Write Commands:                781,473,808
Controller Busy Time:               12,561
Power Cycles:                       1,693
Power On Hours:                     6,403
Unsafe Shutdowns:                   268
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0


Should I be concerned that its written more? It's my boot drive.

[Electronics Wizardy]

Nope not a issue at all. That all seems normal for a SSD.

 

You really don't need to work about endurance on a ssd these days, they will handle more writes than the size will be usable.

[Tragicdice]

14 minutes ago, Electronics Wizardy said:

Nope not a issue at all. That all seems normal for a SSD.

 

You really don't need to work about endurance on a ssd these days, they will handle more writes than the size will be usable.

Is it normal that it has far more host writes than reads though? I've seen others with far higher read counts than writes. Its a 512GB ADATA XG 8200 Pro which I've had for about 2 1/2 years. Its endurance is rated for 320TB.

[Tragicdice]

I assume this isn't anything to be concerned about?

[Electronics Wizardy]

17 minutes ago, Tragicdice said:

Is it normal that it has far more host writes than reads though? I've seen others with far higher read counts than writes. Its a 512GB ADATA XG 8200 Pro which I've had for about 2 1/2 years. Its endurance is rated for 320TB.

Really depends on your exact use case, but I =ve seen this before. I wouldn't worry 

 

3 minutes ago, Tragicdice said:

I assume this isn't anything to be concerned about?

nope no need to worry, and the drive will outlast the usable life of the system.

[Tragicdice]

19 minutes ago, Electronics Wizardy said:

Really depends on your exact use case, but I =ve seen this before. I wouldn't worry 

 

nope no need to worry, and the drive will outlast the usable life of the system.

This is reassuring.

 

I booted into Windows just to check CrystalDiskInfo and it appears that the host writes are only 6000 GB more than host reads. I think there may be a rounding error with the other tool used under Linux. I don't know which one is more accurate though.

 

 

[Electronics Wizardy]

35 minutes ago, Tragicdice said:

This is reassuring.

 

I booted into Windows just to check CrystalDiskInfo and it appears that the host writes are only 6000 GB more than host reads. I think there may be a rounding error with the other tool used under Linux. I don't know which one is more accurate though.

 

 

This looks like a gigabtye vs gibibtype difference. So windows shows gibibytes, and linux is showing gigabytes. Both are corred, but these units are often mislabeled(this is also why a 1tb drive shows up as 931gb)