My server seems to have an issue where whenever I do a disk transfer Disk Transfer speeds are going at an expected rate, and my RAM usage begins to climb. Once my RAM usage hits ~50% the transfer rate begins to drop to about ~9MB/s, and my RAM usage stays at a constant ~50% usage, this has been making me scratch my head for the past week.
The server was initially only installed with ESXI 6.0, I created a VM and started to do some network transfer to it and noticed that the transfer rate would slow down to about 11MB/s, at first I thought it was a SMB issue, was not the case, I tried different switches, no luck, same issue. I then tried a disk transfer on the local VM's disk, and I saw the same thing.
I tried switch the VM's controller didnt work, i tried multiple OSs, but to no solution. I then removed ESXI and install Windows7, same issue, Windows Server 2012 and 2008, same issue.
I then upgraded the firmware of the SAS controller, still no luck.
I am stuck, this is nothing else that makes sense to me. The only issue I could think would be the SAS controller itself taking up the RAM, which doesnt make any sense to me and I dont want to buy a controller and it not be the solution.
At this point I need any help i can get, thank you
BOARD : SuperMicro H8DG6-F CPU : 2x AMD 6272 RAM : 64GB DDR3 PC3-10600R (16x4GB) HDD : 2 x 1TB Seagate, 2 x 1TB WD Blue CONTROLLER : Integrated LSI 2008 SAS2 Controller CHASSIS : SuperChassis 826A, With SAS826A Backplane