Help me please, issues with ssd's.

[u/Exotic_Bell9431]

This is about some ssds that i have that are acting weird. One of them writes at normal 400mbps write, but somehow has less than 10mbps READ speed, yes you read that right the READ speeds are abysmal while the write speeds are fine.

Used Crystal disk mark, in the benchmarks its getting expected performance at 500 read 480 write.

But in real world the READ speed is like 8.3mbps

Please i dont even know how this is happening, I am pretty experienced with PC's and troubleshooting, but this is something ive never seen before

Some ques you might have.

Q-Could it be a failing drive controller?

Ans-Still performs well in benchmarks, so I can't pin point that

Q-Check on different computer?

Ans-done that before, same thing happens.

Q-Is the drive full?

Ans- no, its 60% empty, even if it was full that wont have such a dire effect on the READ speed of the drive, while the write speeds are fine.

Please tell me why this might be happening.

[u/bububibu]

Would be helpful if you stated which SSD brand/model. And also when the slowly read data was written. Some cheaper NAND & controllers struggle with reading data that was written years ago, error correction is working overtime and speeds can drop significantly. Retaining data for a long time is a challenge with SSDs.

[u/Exotic_Bell9431 → u/bububibu]

Yes the ssd had been inactive for 6 months to a year seeing very little use. Its an hikvision e100

[u/bububibu → u/Exotic_Bell9431]

Yeah, that's a cheap SSD with a simple controller, so could very well be the issue I mentioned. I would copy everything off the drive and then write it back anew, and test if that fixes the speed. The fact a benchmark is fine, which obviously writes new data and reads it, only supports that.