Samsung 840 Pro SSD and quirks

[Borja Marcos]

On Sep 1, 2014, at 5:44 PM, Steven Hartland wrote:

> We saw a noticable performance increase on 4k on our 8TB 840
> array but I too couldn't find any concrete information either.
> 
> If anyone has this info and can confirm either way that would
> be great.

I stand corrected. I have done some benchmarks with just two Samsung SSDs (zpool with two disks, no mirroring) and indeed I get better performance with 4 KB blocks.

I did my original tests with 12 disks and some other bottleneck was hiding the performance difference.

In both cases, anyway, Trim was working unless the system lies.





Thanks!