Backup Technologies:
Disk Shadowing - Technology designed by Microsoft. A snapshot is taken of a disk image that can then return a drive to its previous state if need be.
Redundant Servers - Servers that possess the capability of taking over immediately if a primary server fails.
RAID - Redundant array of independent disks. The key here is redundancy. Data is stored across multiple drives but is only seen as one disk. The technique used here is known as striping.
MAID - Massive array of inactive disks. Saves on energy consumption. Drives that do not need to be in use remain powered down until they are called upon.
RAIT - Redundant array of independent tapes. Almost the same as RAID, bust uses tape drives instead of disks. An advantage of this is that it is lower cost.
Clustering - The grouping of servers that might be in a completely different places, but all of these servers can be managed as a single system.
Backups - Having a way to restore data when something bad happens. Examples include software corruption, hard drive failure, and natural disaster.
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