Seems like it is; I've swapped the oldest SATA drive (from 2006) and now seems to work even after removing the power cable. I will do some tests in the next few days and let you know for future users!
Every time I start the server (R720) I need to import the raid configuration. Does someone know how to fix this? [URL] Note: not every time, when I restart windows it correctly detects the virtual drives.. Seems like that when the server stays off without main power for a while it loses the raid memory. From my understanding the battery should not be the problem because it is used only to store the latest data cache and not to store the raid config.
Why perc h710 keep losing the raid config?