Prevention of Accidental Misuse

PREVENTION OF ACCIDENTAL MISUSE

Accidental misuse: you should make reference to backing up data onto another medium such as a tape drive or CDRom, having a clear schedule to make sure data is backed up frequently enough (and kept for long enough) deciding where the backups are kept and testing the recovery system by accessing data from it.

Accidental destruction of files due to fire, terrorism, floods

• keep back up files – offsite - and in fireproof containers (backup systems must be described)
• use an online tape or disc streamer which automatically backs up data on a network
• use grandfather father son security system in batch processing systems. e.g. payroll
• RAID systems – mirror discs (Redundant Array of Inexpensive Disc)

Accidental destruction of files due to human error etc

Prevent overwriting

• put the write protect notch on your disc
• make hard discs read only e.g. same as our p: drive in school for pupil access