As the title says, I have under my care a SuperMicro server running a hardware RAID 6 with a MegaRAID SAS 8708ELP on Linux. I have two failed disks that I have identified as the drives in slot 2 and 4, howerver, my boss tells me that the drives are somewhat scrambled and since the slots start in 0, I'm not sure which hard disks I'm supposed to be changing. I tried to find out the serial number of the drives so I could compare with the drives I remove, but all the commands I've been running to find such info haven't been working.
I tried using
#smartctl -d sat+megaraid,2 -a /dev/sda #smartctl -d megaraid,2 -a /dev/sda
But both only give an invalid argument message.
I've tried running lshw but it only gives me the info of the Raid card itself.
And when I ran
megacli -PDList -aAll I can identify my disks, but I'm not sure what is useful for what I need from all the info.
I'm guessing I only need to remove the 3rd and 5th disk from the server, but I just wanted to be absolutely sure of this before doing it.
I'd appreciate any advice, since I'm not really an IT guy.