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How many reads/writes does your NVMe SSD('s) have

1617083679814.png


Is it 97% normal compared to 1628 hours?
 
c: drive
1ssdc.jpg


game drive
1ssdgame.jpg


page drive
1ssdpage.jpg
 
I've used this SSD for 2 years, looks like my writes are a bit high compared to others.
1617113078799.png
 
c: drive

Samsung.png


Game Drive

WD.png
 
24c0914eec.png
 
boot drive
1617159020294.png
 
chrcoluk said:
At lot has happened since that post.

First the current status. 51 data and integrity errors. Also down to 93% spare.

So what has happened.

I had noticed a couple of months back erors had creeped up to the teens, but at the time no ill effects noticed.

Then I got my 3080FE, and it has no Win8 drivers so had to update my OS.

I proceeded to make backup of my system drive and also the second partition as I wanted to resize the OS partition larger, both of these on the 970 EVO.

Macrium failed to read data on the second partition, CRC read error again and again.
Each time the error popped up the medi aand data integrity error counter went up, and sometimes it also triggered the available spare to go down.
I then started running chkdsk /r as advised by macrium and this massively accelerated both stat changes but eventually the data became readable and I did the backup.
I then moved the ssd to ryzen rig, tried to beat it down with reads and writes, not a single SMART issue logged.
I didnt RMA to samsung as my experience with them has been poor (they seem incredibly strict, rejected previous RMA with 100s of CRC logged in smart), as with brexit would probably be huge shipping delays/costs as RMA centre not in UK.
I did some testing on main PC, reduced system agent voltage which fixed CRC errors on SATA ports, since I fixed that issue I became confident the problem was the NVME signalling rather than the drive, as it also was finein ryzen rig.
Since I have put back in this PC there has been no stat changes, and its been in here since mid February. So looks like was a system agent voltage been too high issue, but I have been checking it now and again.View attachment 194423

Older image below for when put back in main pc.
Also since moving to Win10 the unsafe shutdown no longer goes up on shutdown anymore either which is good.
(also you may notice one of my spindles was in warning status in feb), I reformatted that drive with full format to try and get reallocated sectors (was loads of pending sectors), and they all cleared out instead, which is why its back to blue now. This rig has had some weird i/o issues for sure.

View attachment 194426View attachment 194427View attachment 194428
Click to expand...
Quite the story. VCCSA and VCCIO can definitely cause stability issues, but this is the first time I see a possible relation to SSD errors. Very interesting that the drive ate 7% off the spare while not dropping a single percentage off the health %. I assume it replaced the bad cells from it.

Out of curiosity, I kept a log of sorts for my drives, a 850 Evo and a 970 Evo+. The SATA drive has a Wear Leveling attribute which goes up by one for each 600-ish GB written (the drive is 500GB). For every 11 WL cycles, it drops a percentage of its health. The NVMe drive has no such thing and with 7.5TB writes nothing has moved in life/spare, so there's not much to say about it.

At this rate it will be impossible for me to "consume" the drives. Worth mentioning I keep a 10% overprovisioning on each. Have no idea how much it helps.

Code: 
Samsung 850 Evo
21 March 2018 100%
21 March 2020 99%, 16 WL, 11100 GB written
15 May 2020 99%, 17 WL, 11500 GB written (+400GB)
16 July 2020 99%, 18 WL, 12185 GB written (+685GB)
01 Oct 2020 99%, 19 WL, 12790 GB written (+605GB)
13 Nov 2020 99%, 20 WL, 13486 GB written (+696GB)
11 Dec 2020 99%, 21 WL, 14194 GB written (+708GB)
--------
18 Feb 2021 98%, 22 WL, 14852 GB written (+658GB)
02 Apr 2021 98%, 23 WL, 15518 GB written (+666GB)
 

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Last edited:
This is 9 months of regular use.
Code: 
➜  ~ smartctl -a /dev/disk0
smartctl 7.2 2020-12-30 r5155 [Darwin 19.6.0 x86_64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number:                       APPLE SSD AP1024N
Serial Number:                      C020304004WPYFY1U
Firmware Version:                   1161.80.
PCI Vendor/Subsystem ID:            0x106b
IEEE OUI Identifier:                0x000000
Controller ID:                      0
NVMe Version:                       <1.2
Number of Namespaces:               1
Local Time is:                      Wed Apr  7 18:54:30 2021 EDT
Firmware Updates (0x02):            1 Slot
Optional Admin Commands (0x0004):   Frmw_DL
Optional NVM Commands (0x0004):     DS_Mngmt
Maximum Data Transfer Size:         256 Pages

Supported Power States
St Op     Max   Active     Idle   RL RT WL WT  Ent_Lat  Ex_Lat
 0 +     0.00W       -        -    0  0  0  0        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:                        38 Celsius
Available Spare:                    100%
Available Spare Threshold:          99%
Percentage Used:                    0%
Data Units Read:                    17,491,190 [8.95 TB]
Data Units Written:                 12,220,090 [6.25 TB]
Host Read Commands:                 371,863,830
Host Write Commands:                399,521,122
Controller Busy Time:               0
Power Cycles:                       265
Power On Hours:                     430
Unsafe Shutdowns:                   24
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
 
got mine 2 years ago, mainly use it as os drive and day to day apps (installed programs and stuff)
1617872877306.png
 
Last edited:
toyo said:
Quite the story. VCCSA and VCCIO can definitely cause stability issues, but this is the first time I see a possible relation to SSD errors. Very interesting that the drive ate 7% off the spare while not dropping a single percentage off the health %. I assume it replaced the bad cells from it.

Out of curiosity, I kept a log of sorts for my drives, a 850 Evo and a 970 Evo+. The SATA drive has a Wear Leveling attribute which goes up by one for each 600-ish GB written (the drive is 500GB). For every 11 WL cycles, it drops a percentage of its health. The NVMe drive has no such thing and with 7.5TB writes nothing has moved in life/spare, so there's not much to say about it.

At this rate it will be impossible for me to "consume" the drives. Worth mentioning I keep a 10% overprovisioning on each. Have no idea how much it helps.

Code: 
Samsung 850 Evo
21 March 2018 100%
21 March 2020 99%, 16 WL, 11100 GB written
15 May 2020 99%, 17 WL, 11500 GB written (+400GB)
16 July 2020 99%, 18 WL, 12185 GB written (+685GB)
01 Oct 2020 99%, 19 WL, 12790 GB written (+605GB)
13 Nov 2020 99%, 20 WL, 13486 GB written (+696GB)
11 Dec 2020 99%, 21 WL, 14194 GB written (+708GB)
--------
18 Feb 2021 98%, 22 WL, 14852 GB written (+658GB)
02 Apr 2021 98%, 23 WL, 15518 GB written (+666GB)
Click to expand...
Also forgot to mention, before I upgraded windows, the rated lifetime of the 970 EVO was going down in line with available spare, so was at 93%.

But as soon as I upgraded windows, crystal diskinfo seems to have forgotten what happened and its back up to 100% lol.

I noticed you can view SMART history in crystal diskinfo, even for when its not running but the history only goes back to when I upgraded windows so I am guessing it is stored somewhere that I wiped.
 
It's not NVME, but worth showing here.
579e99efeb.jpg


If anything, it shows that sucker can keep kicking for a good while.
 
Toothless said:
It's not NVME, but worth showing here.
579e99efeb.jpg


If anything, it shows that sucker can keep kicking for a good while.
Click to expand...

What was the TBW warranty of that SSD? It's at 427 TBW!
For how many years have you been using it?
 
P4-630 said:
What was the TBW warranty of that SSD? It's at 427 TBW!
For how many years have you been using it?
Click to expand...
Got it used and no clue on anything else. It's in my game server desktop right now and currently yelling at a company for having a junk game launcher that keeps writing to it.
 
CrystalDiskInfo_20210412082720.png


Luckily it's an original spec SX8200Pro before they started fucking around with it
 
Toothless said:
It's not NVME, but worth showing here.
579e99efeb.jpg


If anything, it shows that sucker can keep kicking for a good while.
Click to expand...
This is what a SSD that have been constantly trashed by a page file looks like.
 
Aquinus said:
I'm not convinced that a game launcher would cause this level of writes.
Click to expand...
c0d0561a07.jpg


This is constant. As long as you have one of their games up it will always write for no actual reason. But we're getting off topic at this point.
 
Aquinus said:
This is what a SSD that have been constantly trashed by a page file looks like.
Click to expand...
The pagefile doesn't do almost anything, I keep mine for 3 years on a 850 Evo and the writes per day were usually just 25-30GB/day (as an OS/apps drive).
 
2200% of total capacity on reads
1160% of total capacity on writes
optane rw.jpg
And that's all the NVMe I can use. I have only 1 M.2 slot.
Once I upgrade my motherboard I'll be able to use my second 16GB Optane stick.
 
apparently i go pretty easy on my drives

b7fzp5tm1q.jpg
 
Been in my gaming PC since May 2017.
Screenshot 2021-04-14 024514.png
 
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