DIF stands for Data Integrity Field. The purpose of this field is to provide End-to-End data protection in Computer/Enterprise data storage methodology.

Data integrity concerns are not new, and protection mechanisms abound. Packet-based storage transport protocols have CRC protection on command and data payloads. Interconnect buses have parity protection. Memory systems have parity detection/correction schemes. I/O protocol controllers at the transport/interconnect boundaries have internal data path protection.

Data availability in storage systems is frequently measured simply in terms of the reliability of the hardware components and the effects of redundant hardware. But the reliability of the software, its ability to detect errors, and its ability to correctly report or apply corrective actions to a failure have a significant bearing on the overall storage system availability.

The data exchange usually takes place between the Host/CPU and Storage disk. There may be a storage data controller in between these two. The controller could be RAID

RAID

RAID is a storage technology that combines multiple disk drive components into a logical unit...

 controller or simple storage switches.

See also

• Enterprise storage
  Enterprise storage
  In computing, an enterprise storage is the computer storage designed for large-scale, high-technology environments of the modern enterprises. When comparing to the consumer storage, it has higher scalability, higher reliability, better fault tolerance, and much higher initial price.From the...
  
  
• Computer storage
  Computer storage
  Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers....
  
  
• Online storage
• RAID
  RAID
  RAID is a storage technology that combines multiple disk drive components into a logical unit...
  
  
• DIF (disambiguation)