RAID technology in a single storage device provides storage redundancy to provide high or constant availability in teh case of certain hardware failures.
Its good stuff but not a good fit for most home users IMHO. Having a physical backup drive is the single best protection for home use. Having a backup at a separate location from the main is the best solution in case fire or other localized disaster is a concern.
If a main fails, the backup can be switched in easily with some but little downtime. Most business applications that use RAID cannot afford ANY down time.
To accomplish that, data is replicated or backed up to additional devices that can be switched in quickly if needed.
RAID alone adds cost and little value for a home user.
Its good stuff but not a good fit for most home users IMHO. Having a physical backup drive is the single best protection for home use. Having a backup at a separate location from the main is the best solution in case fire or other localized disaster is a concern.
If a main fails, the backup can be switched in easily with some but little downtime. Most business applications that use RAID cannot afford ANY down time.
To accomplish that, data is replicated or backed up to additional devices that can be switched in quickly if needed.
RAID alone adds cost and little value for a home user.