The reason I ask is, when a drive fails and is replaced without a reboot, the new device name may change from /dev/sdc to /dev/sdy for example. Upon reboot, I am concerned the device names will be reordered and the drive not mount properly.
If you notice in the ztab output above, /dev/sdc is skipped (it failed) and I replaced the drive which registered as /dev/sdy. If I can reference the UUID, it would be a non-issue. Make sense?