I am curious if anyone here knows the different LED behavior on supermicro chassis and backplane.
I have 2 supermicro 836 chassis both with BPN-SAS2-836EL2, one of them filled with toshiba sas nearline hard drives with Adaptec raid controller and the other are populated with HGST sas ssd with LSI 9300 hba.
The chassis filled with harddrive always have the blue drive activity on and blink when there's activity. The other chassis with SSD have a different behavior which are more expected; the LED light would only blink when there is activity. I am wondering what is causing the backplane LED to stay on even without activity on one and not on the other. I've setup many of these chassis within the past few years and never really figure it out and wonder if anyone knows what is causing these different behavior. Is it because of the controllers ?? the type of drives ? Unfortunately these are production boxes and I cannot test moving drives around or swapping controller.
I have 2 supermicro 836 chassis both with BPN-SAS2-836EL2, one of them filled with toshiba sas nearline hard drives with Adaptec raid controller and the other are populated with HGST sas ssd with LSI 9300 hba.
The chassis filled with harddrive always have the blue drive activity on and blink when there's activity. The other chassis with SSD have a different behavior which are more expected; the LED light would only blink when there is activity. I am wondering what is causing the backplane LED to stay on even without activity on one and not on the other. I've setup many of these chassis within the past few years and never really figure it out and wonder if anyone knows what is causing these different behavior. Is it because of the controllers ?? the type of drives ? Unfortunately these are production boxes and I cannot test moving drives around or swapping controller.