What are the advantages of RAID 1?
RAID 1 has the advantage of providing improved read speeds and additional protection of the hard disks if the controller or the management software enables simultaneous access to more than one storage medium. In case of the former, this is made possible by parallel access to different sectors, in the latter case by comparing the data.
What are the disadvantages of RAID 0?
RAID 0 is the most affordable type of redundant disk configuration and is relatively easy to set up. Still, it does not include any redundancy, fault tolerance, or party in its composition. Hence, problems on any of the disks in the array can result in complete data loss.
What happens when a RAID 1 drive fails?
With a RAID 1 system, all of the drives in the array have to fail before you’ll need to a consult a RAID data recovery expert to recover your data. Redundancy means that as long as one drive in the array is still in operation, your data is fine – although the faulty drive should be replaced as soon as possible.