There's a chip on your motherboard that is sometimes referred to as the "north bridge." One of the responsibilities this chip has is to translate information from your CPU to your RAM and vice-versa....
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recreate RAID array
if one of the drives fail, replace the drive and rebuild the RAID-0 on the dead machine:
mdadm --stop /dev/md0
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=3 /dev/sdb1 /dev/sdc1 /dev/sdd1...