Redundant array of inexpensive disks,

Effective preservation of electronic records is vital to passing any inspection. Have a procedure, follow it, and retain documented evidence that it works. Use redundant hardware such as RAID disks (Redundant Array of Inexpensive Disks) and uninterruptible power supplies (UPS) as a first line of defense against electronic record loss. 

How long should the time between backups be This can be answered by considering how much data the laboratory can afford to use. If it is up to a week (most unlikely), then the backups can be weekly, but typically it is daily. If criticality determines that no data can be lost, then shadowing or duplicate disks with RAID (Redundant Array of Inexpensive Disks) technology may be appropriate. 

Quality Tracking System Rapid Application Development redundant array of inexpensive disks random access memory reliability-centered maintenance relational database... 

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