Raid 0 = 1 disk vol spanned across 2 Drives
If 1 drive fails/has problems then you lose the spanned Vol
your have to back up vol
then replace dying disk and either restore your files to new array (rebuild)
RAID 0 (also known as a
stripe set or
striped volume) splits ("
stripes") data evenly across two or more disks, without
parity information, redundancy, or
fault tolerance. Since RAID 0 provides no fault tolerance or redundancy, the failure of one drive will cause the entire array to fail; as a result of having data striped across all disks, the failure will result in total data loss. This configuration is typically implemented having speed as the intended goal.
[2][3] RAID 0 is normally used to increase performance, although it can also be used as a way to create a large logical
volume out of two or more physical disks
for future recovery /security
Perhaps you should consider Raid 1
RAID 1 consists of an exact copy (or
mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks. This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk. This layout is useful when read performance or reliability is more important than write performance or the resulting data storage capacity.
[13][14]
The array will continue to operate so long as at least one member drive is operational