Protecting Electronic Archives: A Guide to Avoiding Data Deterioration
Electronic archives of patient files and other medical records are susceptible to data deterioration due to the limitations of storage media and system upgrades. This could result in the inability to access critical information, even when needed urgently. Protection against such a scenario can be achieved by following a few simple steps, ensuring the longevity of electronic archives.
Key Takeaways:
- The shelf life of digital media, such as floppy disks, optical disks, and magnetic tapes, is limited, ranging from 10 to 100 years, depending on the medium and storage conditions.
- Degradation of just a few magnetic bits can render an entire tape or disk unreadable, posing a significant risk to data preservation.
- CD-ROMs are considered one of the longest-lasting electronic media, with an estimated lifespan of over 100 years.
- Manufacturers' instructions on storage conditions, such as heat, dust, humidity, light, and magnetic fields, should be strictly followed to ensure data integrity.
- It is essential to make backup copies of archival disks and store them in different locations to prevent data loss.
- Regular testing of archive readability, both before and after system upgrades, can prevent data corruption.
- Using the most common formats and best available quality digital media can also minimize the risk of data deterioration.
- Microfilm is considered an ideal long-term storage medium due to its indefinite lifespan and resistance to degradation.
Statistics:
- CD-ROMs last for over 100 years (National Media Laboratory estimate)
- Magneto-optical disks last between 10 to 30 years (National Media Laboratory estimate)
- Degradation of just a few magnetic bits can render an entire tape or disk unreadable (Harry Rhodes, American Health Information Management Association)
- 90% of electronic media become obsolete within 5-7 years (unnamed source)
Sources:
- "Digital Data: PV-1659-333-173" by Wade N. Sher & Sue A. Matthews, U.S. National Archives and Records Administration
- "The Shelf Life of Computer Media" by National Media Laboratory (unnamed source)
- "Making a Transition to E-Discovery: Technology and Documentation" by American Health Information Management Association (Harry Rhodes)
- "Document Imaging" by Westbrook Technologies Inc. (Paul Pitts)