Mounting a wonky (RAID) drive from a QNAP NAS on another machine.
Brief list:
apt-get install mdadm
Reboot, with drive plugged in
Check lvdisplay that drive is present
mount -o ro /dev/vg289/lv2 /mnt/roms
cd /mnt/roms/ROMs/
rsync -avze ssh . admin@kargath:/share/CACHEDEV1_DATA/ROMs/
Other stuff:
Check /etc/mdadm/mdadm.conf on original and target machines for the same drive ID
Or, if mdadm.conf doesn't exist: mdadm –examine –scan > /tmp/mdadm.conf