Disk speed drop after parity check starts

[1euro7cent]

Everything is going well with disk speeds. I even made a speed test of them:

 

after every parity check all the speeds drop to 4 mb/s

I cannot finish this test above because it would take ages

 

 

I didn't finish a parity check for like 3 weeks now because it takes forever, and the disks are getting hot

 

the only way to resolve this is to reboot unraid. Until next parity check this issue won't come back

[JorgeB]

Please post the diagnostics during a check when it's going slow.

[1euro7cent]

8 minutes ago, JorgeB said:

Please post the diagnostics during a check when it's going slow.

 

I freshly started a new check and made diagnostics. 

tower-thomas-diagnostics-20221204-1344.zip

[JorgeB]

Change SATA controller from IDE to AHCI in the BIOS.

[1euro7cent]

In short term it seems to work. But I have a different issue now

 

the connection to windows is extremely slow. I am trying to move files, and it only has like 1mb/s. We have a 1gigabit connection from me to unraid.

The disks itself are working at full speed. That share uses a share of 2 drives (should be fast).

 

In case you need diagnostics again. Here it is: tower-thomas-diagnostics-20221207-1647.zip

[JorgeB]

Were the diags saved during a transfer? There's no array activity, start by running an iperf test to rule out network issues.

[1euro7cent]

i made this test

 

my Ethernet to the outside world is 

 

https://www.speedtest.net/result/14042949900

 

that makes no sense to me

[JorgeB]

That confirms the network is the problem.

[1euro7cent]

I bet when I reboot unraid it works just fine for a few hours. It is always like this.

[JorgeB]

Problem is still network related, could be NIC/driver, cables, switch, etc.

[trurl]

1 hour ago, 1euro7cent said:

That share uses a share of 2 drives (should be fast)

This suggest you may have some misunderstanding about Unraid.

 

Each file exists on a single drive so read speed is at the speed of the single disk being read. There is no striping in Unraid.

[1euro7cent]

4 minutes ago, trurl said:

This suggest you may have some misunderstanding about Unraid.

 

Each file exists on a single drive so read speed is at the speed of the single disk being read. There is no striping in Unraid.

 

I have a cache pool with 2 drives

[trurl]

4 minutes ago, 1euro7cent said:

I have a cache pool with 2 drives

 

Is it this share?

w----------k                      shareUseCache="prefer"  # Share exists on bulk-cache

 

[1euro7cent]

7 minutes ago, trurl said:

 

Is it this share?

w----------k                      shareUseCache="prefer"  # Share exists on bulk-cache

 

I am trying to copy to "Bulk drive" with cache pool "cache"

that bulk cache is not used with the problem I have

[trurl]

Other than your domains share

w----------k                      shareUseCache="prefer"  # Share exists on bulk-cache

is the only share without files on the array.

[1euro7cent]

I found out that my network card (my pc) was causing the slow internet speed. The initial issue was resolved by switching SATA controller