Samsung 870 EVO any problems known

Phil2008 said:
Ive just run ATTO today and now the write speeds are just over the 500mb/s mark, but when I installed the drive yesterday, the writes were only in the 350mb/s mark.:cool:
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Did you write much data to it? sometimes it needs to do a bit of optimisation/trim if you dump a lot of stuff on it before speeds return to optimal.
 
Well I have just restored the windows partition as I had messed up stuff, and ran the magician and a few other benchmarks expecting things to have dropped with writing of restoring the partition and yes the random reads/writes has dropped slightly but the actual write speed has increased...

Yesterday
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Today
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Eddie99 said:
I wasn't planning on it either but I couldn't resist when I saw a 2TB 970 EVO Plus for £76. I'll just use it for unimportant stuff for the first few months and after that I'd consider it as reliable as any other SSD as these problems tend to show up early.
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That is a nice price, not been able to find it anywhere at that cost though.

One good way of testing how well data retention is and for read errors is to do a Macrium forensic image backup.

Check data integrity errors after each one of those backups.
 
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chrcoluk said:
That is a nice price, not been able to find it anywhere at that cost though.

One good way of testing how well data retention is and for read errors is to do a Macrium forensic image backup.

Check data integrity errors after each one of those backups.
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Can't post links and it's expired now anyway but it was on HUKD (imported from France). Doing a Macrium image backup to a HDD and then verifying it would be quite time consuming, wouldn't a full disk scan with something like HDDScan be just as good and much faster?
 
Eddie99 said:
Can't post links and it's expired now anyway but it was on HUKD (imported from France). Doing a Macrium image backup to a HDD and then verifying it would be quite time consuming, wouldn't a full disk scan with something like HDDScan be just as good and much faster?
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Yeah I wouldnt expect you to post where it was. If I cant find it, it is what it is.

You dont need to verify the backup, just doing the backup is enough to trigger CRC smart errors and Macrium can still report when it is unable to read data.
 
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chrcoluk said:
Yeah I wouldnt expect you to post where it was. If I cant find it, it is what it is.

You dont need to verify the backup, just doing the backup is enough to trigger CRC smart errors and Macrium can still report when it is unable to read data.
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It would still be extremely slow due to the write speed of the hard drive you're copying it to, unless you copied it to another SSD in which case you're using up a lot of the write endurance for nothing because a full disk scan would do the same thing.
 
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Eddie99 said:
It would still be extremely slow due to the write speed of the hard drive you're copying it to, unless you copied it to another SSD in which case you're using up a lot of the write endurance for nothing because a full disk scan would do the same thing.
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A LBA scan might work so sure try that, but the reason I suggested it, for some reason Macrium seems better at picking up errors.

Badblocks on linux is another option as well.
 
chrcoluk said:
A LBA scan might work so sure try that, but the reason I suggested it, for some reason Macrium seems better at picking up errors.

Badblocks on linux is another option as well.
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One day when I'm feeling flush I should stop using the free version of macrium. Everyone should keep an eye out for smart errors. Use as early warning. Hwinfo etc.
 
Phil2008 said:
The health dropped to 84% on my 840 pro after 8yrs of use, but the performance was still at 100%...
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My 840 Evo is almost 10 years old, 74% health, so far since the firmware fix has been performing at 100% without skipping a beat - though I need to replace it soon really.
 
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Rroff said:
My 840 Evo is almost 10 years old, 74% health, so far since the firmware fix has been performing at 100% without skipping a beat - though I need to replace it soon really.
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I didnt know there were any firmware issues as I haven't any problems with my 840 pro and there hasnt been any firmware updates for years for my 840 pro? Ive only had about 2-3 firmware updates in total since having the drive.
 
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Phil2008 said:
I didnt know there were any firmware issues as I haven't any problems with my 840 pro and there hasnt been any firmware updates for years for my 840 pro? Ive only had about 2-3 firmware updates in total since having the drive.
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I can't remember which models were affected but a bunch of 840 drives including the Evo had a problem where the calibration for the cell voltage decay was off so over time the drive would become slower and slower as it struggled to read data and in theory eventually become unable to read data - unfortunately a hardware issue so the fix was firmware which periodically refreshes the cells but doesn't seem to cause any significant performance or lifespan degradation.
 
Rroff said:
I can't remember which models were affected but a bunch of 840 drives including the Evo had a problem where the calibration for the cell voltage decay was off so over time the drive would become slower and slower as it struggled to read data and in theory eventually become unable to read data - unfortunately a hardware issue so the fix was firmware which periodically refreshes the cells but doesn't seem to cause any significant performance or lifespan degradation.
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I thought it was just the 840 (non pro) because it had TLC NAND which was new at the time.
 
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Eddie99 said:
I thought it was just the 840 (non pro) because it had TLC NAND which was new at the time.
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Don't think it affected the pro, I can't really remember which drives it did or didn't impact now but I know the firmware update was originally released just for the Evo initially but then some other models also received it.
 
Aaarrgh my 1TB 870 EVO died today !

Hardly had much written to it since I have 4 SSDs and it was one with apps installed.

I also had a USB drive die (used for backs) a few days ago and I thought I had better back up SSDs. Thats when trouble started with the EVO 870.
It refused to back up saying CRC read error. Then I checked it with Samsung magician software it went from orange warning to red critical in 1 hour !

Now I cant access the data its totally bricked ! It just hangs the PC. Not detected in BIOS either.
Manufacturer date : 2021.09 Product of China it says.
 
Well all you can do is backup the ssd every few days or weeks depending whats on there and backup your important stuff to the cloud or another device daily, Thats what I do with mine, so if it dies who cares, I just sent it back to amazon.. I know I have only had the ssd for a week with little over 400gb of writes, but its still 100% healthy and working great so far, touch wood.

But saying that the wear level has just dropped to 99 in the smart, but the "hard disk sentinel" still saying 100% on the main screen?
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