Frequently Asked Questions

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Question

Do all RAID levels protect against data loss?

Answer

No. Of the most popular RAID levels, only RAID 1, 5, 6, and 10 are designed to protect data after a disk drive failure. RAID level 0, while not offering data protection, is still popular in certain applications (such as high resolution video capture and editing) since it usually offers the highest performance of all RAID levels. Before selecting a RAID 0 configuration, be certain that potential data loss would only represent an ‘inconvenience’ and not a catastrophe. Some applications, such as video capturing and editing, have the original data on tape – so that if the RAID 0 data is lost due to a drive failure, the original data can be restored from the source tape or other storage media.


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