I have a big problem while tranfering large files from one drive (usb or ahci sata to raid) in my HP PROLIANT ML150 GEN9. At the beginning we were thinking arround the B140i controler wich has a very poor performance. This controller isa pseudo-raid controller without any memory cache. this is its performance:
https://i.stack.imgur.com/aJR6A.jpg
After upgrading to smart array p440/4gbFWC performance improved a lot:
https://i.stack.imgur.com/zABIz.jpg
Although the improvement the problem was still present:
-When transfering large files, speed drops dramatically after a couple of minutes, and still in 6 or 7 MB/s till the end of the tranfer:
https://i.stack.imgur.com/UHYys.jpg
I tried everything to solve it whith no results:
-CLEAN INSTALL OF WINDOWS 2012R2
-CLEAN INSTALL WINDOWS 2019
-UPGRADE ALL FIRMWARES, ROMS AN DRIVERS OF THE SERVER THROUGH LATEST PROLIANT SERVICE PACK.
Has it happened to someone else? THANKS A LOT!!!