Question Why is my SSD write so slow!

[naps2saps]

My 90GB SSD is a 500MB/s read/write drive and it's doing 480/125.
I formatted the drive, secure erased, made sure the firmware was up to date, ran a manual trim, tried another SATA3 controller via PCI-e 8x RAID card, fresh OS, nothing has worked.
It's a Corsair Force GT
I'm still getting about 125MB/s write.
According to the Corsair toolbox it has 9.7TB reads and 7.2TB writes.

Please help. Is my SSD on it's way out?

My 2 SSD striped raid is only doing about 200 MB/s write on SATA2 and 540MB/s read. So this is really pissing me off right now that both are having write issues.

 

[popatim]

You're on SATA 2 which limits you to 200-250MB/s so in a strip you are doing really well. You need Sata3 to achieve 500+MB/s.

The 90GB is not know for writing very fast.
https://ssd.userbenchmark.com/SpeedTest/2377/Corsair-Force-GT

 

[naps2saps]

You're on SATA 2 which limits you to 200-250MB/s so in a strip you are doing really well. You need Sata3 to achieve 500+MB/s.

The 90GB is not know for writing very fast.
https://ssd.userbenchmark.com/SpeedTest/2377/Corsair-Force-GT

I know the limits of SATA2 lol. The 90GB drive is on SATA3 previously benchmarked at over 400MB/s a year or two ago when I swapped motherboards. The 2 250GB drives are on SATA2 and raided to overcome SATA2 limits. Previously benched at over 400MB/s as well. It seems as though all 3 drives are topping out at around 125MB/s for some odd odd reason. Steam must have a high overhead for downloads because I was able to download at 80-90MB/s when I got my Gig internet last year and yesterday I was struggling to do over 35MB/s because the RAID drives were maxed out. Unless everyone's Corsair Force GTs crapped out at the same time that makes no sense. It's rated around 500MB/s read/write confirmed by me in previous benchmarks. I've owned that drive since it was new.

I checked the things in that article and everything checks out.
Any other suggestions???

 

[popatim]

My 2 SSD striped raid is only doing about 200 MB/s write on SATA2 and 540MB/s read. So this is really pissing me off right now that both are having write issues.

What is this in reference to then?

 

[fzabkar]

The performance depends on whether the data are incompressible or compressible. See the huge difference in the results for "random" and "repeating" data types, respectively.

https://storagereview.com/corsair_force_series_gt_family_review

 

[naps2saps]

Sigh... Let's try this again.
1-2 years ago, write speed (Crystal disk sequential benchmark) was around a normal 400MB/s as per spec on SATA3.
Today, only the write speed (Crystal disk sequential benchmark) has changed and is now terribly slow maxing out at 125MB/s. I have run the secure erase utility to rule out a full drive. Nothing else has changed and I am using the same controller and benchmark software. I have even tried other SATA3 and SATA2 controllers with the same exact 125MB/s result.

My raid drive is a non issue now. I moved them to my Adaptec RAID controller (SATA3) and they are now benching at (Crystal disk sequential benchmark) 1GB/s read and 600MB/s write. Individually they were only doing 250MB/s write on the same controller so that RAID result is quite a surprise.

I hope this problem description is more clear as to what I have seen with my own eyes and rules out bandwidth concerns with SATA2.

 

[TJ Hooker]

Full system specs, including OS version?

 

[naps2saps]

DX58OG
Xeon x5690
Adaptec 6805
1070 Ti
Win 10 1903

 

[TJ Hooker]

The various patches that have been released to deal with Intel's security vulnerabilities over the past year or so have had significant impacts on storage performance. If I recall correctly, older generations of CPUs are affected even more significantly.

I don't know if that'd account for the entirety of the performance decrease you're seeing, but I imagine it'd at least be a factor.