Quote:
Originally posted by PCgumshoe
ALL that being said, isn't the theory behind RAID that the two drives are identical in case of failure? Wouldn't this be a failure that may need to be addressed?
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It depends on how you set up you RAID (
Redundant
Array of
Inexpensive
Disks configuration.) The idea behind this technique is to combine two or more hard drives for data redundancy in case of hard drive failure.
A RAID configuration can be set up as follows:
RAID 0:
Uses a method called
Data Stripping where one combines two or more hard drives into
one large volume. RAID 0 read and write much faster than non-RAID setups. [b]RAID 0 does not offer Data Redundancy.
RAID 1:
Mirrors one drive onto another same sized drive. This method offers maximum data integrity and gives immediate access to the data when 1 drive fails.
RAID 5:
For the best balance of capacity and redundancy, it stripes all drives onto one volume; one of the drives is used to store parity data. When one drives fail, the data is rebuilt using the parity date. RAID 5 must have a minimum of 3 hard drives
Jon