Chapter 11
Data Integrity
Abstract
Data integrity is a major problem in storage. We have to recognize that drives and controllers fail, while data holes appear on the disks in the drive that make data unreadable. Data protection schemes evolved rapidly until the mid-1990s, when the industry entered a period of technical stagnation in the area. We have now moved on to innovations like replication and erasure coding as protection schemes and the protection of stored data has improved dramatically as a result.
Keywords
Data integrity; Disaster protection; Erasure coding; Mirroring; Parity; RAID; Rebuild time; Reed–Solomon code; Remote replication; Replication; Snapshots
Ensuring that the data written to storage can be recovered over extended periods is ...
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