Hi all

 

Today I installed my first Parity drive. All seems to be running as it should, but I was wondering about the speed. This is a screenshot of the current stats: 

 

So my question is, are these speeds ok? Or should I be seeing more action? If you think it's on the low side, what could I be doing to have it run better?

 

Thanks!!

 

16 minutes ago, HomerJ said:

So my question is, are these speeds ok?

Depends on the disks and controller(s) used.

Thanks for your reply! 

 

I have 6 drives, which includes the Parity drive, connected to the motherboards 6Gbps SATA ports. Then I have these two controllers, first of which I'll call 'A' and the second is 'B'. 

 

A

 

B

 

 

'A' is connected to a M.2 slot which is either Gen 4 x4 64 Gbps or it could be Gen 3 x4 32 Gbps. 3 drives are connected, leaving 2 SATA ports not in use. 

 

'B' is connected to a PCie 3 x16 slot. 2 drives are connected, leaving 4 SATA ports not in use. 

 

The motherboard is an MSI PRO Z690-A DDR4.

 

Have I reached the maximum performance I can get from this setup? The 2 sata cards still have 5 sata pets available between the two of them, but every other port on the motherboard is used. Because I've never had a Parity drive before now, I don't have much of an idea of what to expect in regards to speed. 

Edited May 29, 20242 yr by HomerJ

Controller B is PCIe 2.0, but with just two drives it should never bottleneck, it will also depend on the disks used, but if they are all large fairly recent non SMR disks, there will be something limiting the speed, you can run the diskspeed controller benchmark, to see if there are any bottlenecks there.

Thank you for that info. So what you're saying is that I should be getting better speeds?

 

I'm pretty sure that all the drivers are CMR, though I have a sneaky suspicion that one might be SMR. In any case, I will do as you've suggested and benchmark each drive once Parity is finished building. 

5 minutes ago, HomerJ said:

So what you're saying is that I should be getting better speeds?

If they are all recent large disks, parity is not SMR, and that screenshot is from the beginning, yes it should be faster, at least 150MB/s, or even 200MB/s+

I can't recall when exactly I took the screenshot, but it was a couple hours into the Parity build. 

 

It's currently at 43% and this is what the values are now, which are slower :

 

26 minutes ago, HomerJ said:

but it was a couple hours into the Parity build.

Then it can be normal if you have multiple disk sizes, disk speed slows down by a lot as it goes from the faster outer sectors to the slower inner ones.

 

27 minutes ago, HomerJ said:

which are slower :

That's normal, it can speed up again if it finishes a size.

 

 

Thanks mate! 

 

95% done now!