SSD Livetime

I do monitor my SSD livetime.

Comparing with other “Power users” that do not use Qubes i got around 100% more load on my SSD than them (under normal circumstances, without experimenting.)

I would love to get some stats from you!

You can obtain them with

sudo smartctl --all /dev/nvme0

in dom0.

I do some research on distributed networks and i am running experiments quite frequently in the last time. One run costs me 30Gb of writes and i have done this a lot. Keep that in mind. However i have burned through 33% of the lifetime of my SSD in 5 months.

This SSD is 5 months old:

Supported Power States
St Op     Max   Active     Idle   RL RT WL WT  Ent_Lat  Ex_Lat
 0 +     8.49W       -        -    0  0  0  0        0       0
 1 +     4.48W       -        -    1  1  1  1        0     200
 2 +     3.18W       -        -    2  2  2  2        0    1000
 3 -   0.0400W       -        -    3  3  3  3     2000    1200
 4 -   0.0050W       -        -    4  4  4  4      500    9500

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)
Critical Warning:                   0x00
Temperature:                        50 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    3%
Data Units Read:                    42,913,978 [21.9 TB]
Data Units Written:                 33,825,813 [17.3 TB]
Host Read Commands:                 774,910,618
Host Write Commands:                520,990,562
Controller Busy Time:               2,377
Power Cycles:                       179
Power On Hours:                     1,409
Unsafe Shutdowns:                   63
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0
Temperature Sensor 1:               50 Celsius
Temperature Sensor 2:               54 Celsius

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

I am curios on how much you burn your SSD with Qubes. From my experience, it is 100% more than “normal Power user” usage.

Doesn’t it say 3% used, I doubt 17TB write is 33% of your lifespan ?

I’m using two evo 980 pro, and they grow about 1TB pr month. Their lifespan in 600TB write or 5 years, at current rate they expire before they get to the max write.

Well i have 10% spare sectors. 3% are already burned of 10% spare. My SSD is a Pro 980 too.
So… i am justr using the numbers from my SSD.

You are trying to calculate the endurance of the drive by multiplying the spare threshold with the usage?, I don’t think that makes much sense.

I believe the percentage used is the number you want, when it gets to 100 of theoretical endurance of the drive is consumed, but the number can exceed 100% if just max write limit provided by the manufacturer.