Thanks for your reply. Please look at the attached file for the position on the controller card.
If I see it right it is labeled "D2". It is flashing in constant intervals.
By the way I also removed the BBU, because it was dead. But nevertheless the LED was blinking before, too.
red_LED_Location.jpg 234.4 K
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This is the heartbeat LED. Most/all of our RAID cards have this LED, although most of them use a green LED instead of red. Based on my non-scientific monitoring of it, it looks to blink at a rate of 1 second on/1 second off once the FW has been initialized and is running.
Thanks for your very helpful answer, John.
I didn't know if it was blinking before, because the server chassis was closed until I wanted to remove the BBU. So it's very comforting to know that everything is fine.
But can still anyone help me to get this IASC working again? Is there a way to clean the system from all drivers and stuff belonging to Intel System Tools?