On 08/04/19 20:56, Renaud (Ron) OLGIATI wrote: > I have inherited the administration of an existing system. > > Point of worry: The raid 1 array is defined both in the MB Bios, and with mdadm. > That doesn't sound right ... > If I change the MB, and dont want to loos the data, do I need to keep the BIOS-defined array, or can I just rely on mdadm ? > Ouch! You NEED to back up. And given what you've just said, that worries me ... mdadm is good at reading any array, but BIOSes are buggy, they do weird things, etc etc. I most definitely would NOT trust one mobo to read another mobo's array. Chances are you'll be fine. You might just be the unlucky one who isn't. Cheers, Wol
