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Data Permanency on USB Flash Keys

By godzillex ·
Hello,

With the advent of inexpensive 4 GB USB Flash keys, I have been seriously considering them as candidates for data backup and archival purposes.

The question is, exactly how long will this data be retained in the memory of the Flash keys?

Any links detailing this information wiill also be greatly appreciated.

Thank you.

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by saihib In reply to Data Permanency on USB Fl ...

It'll stay there until it's deleted or physically destroyed. Even after deletion data can still be recovered. Read more here:
http://en.wikipedia.org/wiki/Flash_memory

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by HAL 9000 Moderator In reply to Data Permanency on USB Fl ...

In theory it should be permanent storage but as these devices have not been available for a protracted length of time I would only consider as using them as Short Term Storage as yet they do not have a proven track record in their ability to store data for protracted periods of time in storage.

If they are used on a regular basis to backup data over existing data there shouldn't be a problem but if you are considering Archiving it that is a different story as well as the fact that we do not know if the USB Standards will still be in effect several years from now as Firewire which is faster may replace the USB Standards. So while they may be OK for the short term over the long term you may find that you are unable to read them because USB has become obsolete.

Col

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