jrder11

I really appreciate you taking a look at the diagnostic report!

I am not writing any data during the parity sync.

I am having a terrible time figuring out what has happened to slow the write speeds on this newly constructed array. I was able to increase the speed of a parity check from 60Mb/s to 87Mb/s by changing the following: Share settings > Case-sensitive names Settings > SMB > Enhanced macOS interoperability Settings > SMB > Samba extra configuration (added the below lines): ea support = no store dos attributes = no Settings > Global Share Settings > Tunable (support Hard Links) I have also tried enabling Turbo Write with no change. I have also tried the "New Config" option with no change. All Parity and Data drives are connected to a LSI 9211-8i flashed with IT Mode firmware. Mainboard: MSI PRO Z790-P WIFI DDR4 (MS-7E06) Proc: i7 12700k RAM: 32GB DDR4 I pulled the attached diagnostic report about 7 minutes into a parity sync. I have tinkered and read and read and tinkered until my brain is basically oatmeal... Any and all help is greatly appreciated. JM filenest-diagnostics-20250415-1728.zip