ParityCheck more than 1 Disk -> restarts/slow webgui/noresponse

Hello,

i am new in the forum and i hope someone can help me.

I am using Unraid now about a month and with a new system.

For me, unraid seems to be the perfect solution for my NAS with PlexMediaServer, with VMs for IPTV

and Windows Server etc. so i decided to buy the pro version after some tests.

Everything is working fine til the system makes a parity check. Around 50% something more or less, the 

system does a reboot. I dont know why. I couldnt find something in the logs. The last tries the system doesnt

restart, it just freezed the webgui. Terminal still seems to work. I also tried to deactivate the VMs

and the Dockers so that nothing is running in the background. But nothing seems to help really.

Memtest runs without errors for hours and multiple times.

I am using two 3TB HDDs for my Storage and two 4TB HDDs for parity. When i choose just one parity HDD 

the parity check runs without problems. So i switched between the parity disks to try if one of them isnt 

working correctly. But the problems only appears when i am using both disks together.

Current Setup: (ACS Override is activated due to IPTV with my Sat-Tuner and the VMs and the Network Cards for Opensense)

Mainboard: Asrock X370 Killer SLI with the newest Bios Version form the Website

CPU: Ryzen 7 1700

RAM: 32 GB 

PowerSupply: Kolink 80 Plus Bronze 1000W

Cache Drives: 2x SSD XPG SX 6000 M.2 PCIe Gen3x2 nvmE

Storage: 2x 3TB Toshiba P300 HDWD130

Parity: 2x Seagate NAS Ironwolf 4TB ST4000VN008

UPS: APC Back UPS PRO USV 900VA - BR900G-GR

Network: 1x OnBoard Network Adapter, 2x 2 port LogiLink PC0075 PCI-E Gigabit LAN

Raid Controller: Adaptec ASR-72405 to use24 Drives with the Backplanes from the Server Chassis

PCI-E: DigitalDevices MaxS8 Sat TV Card, DigitalDevices FlexDuo CI-Modul

VMs: 1x Linux -> OpenSense, 1x Windows 10 Pro, 1x Windows Server 2016

I attached  a current server-diagnostics file. Currently i deleted all dockers and i am just running the VMs.

Please let me know if you need more informations from me. I hope someone had the same problems or someone knows a solution.

I hope my english isnt too bad to understand the problem.

Thank you.

DennisCM

server-diagnostics-20180619-0812.zip