29 Nov
2009
29 Nov
'09
9:15 p.m.
On Sun, Nov 29, 2009 at 02:45:44PM -0600, Jim Leonard wrote:
Guy Sotomayor wrote:
Which is yet another reason to:
- always keep more than one copy of your data
- keep several versions if the data changes with time (so you can
recover from corruptions & operator errors over larger time spans)
- keep it on different media types (disks, tapes, optical ...)
- ideally, keep safe offsite copies (preferrably encrypted if it
isn't public data)
Kind regards,
Alex.
--
"Opportunity is missed by most people because it is dressed in overalls and
looks like work." -- Thomas A. Edison
My strategy is to have *many* duplicates of the data and that all of
the bits need to be spinning. If they're not spinning, they don't
exist! I move all the data to new technology every few years (about to
do another upgrade since I'm about out of space on my 6TB array).
While I disagree on the bit about needing to be spinning (20 years from
now, everything will be flash), I wholeheartedly agree that the data
must be migrated to new technology every half-decade or full decade.
Every single one of my archive mediums -- 5.25" DSDD, zip drive, hard
drive(s), CDs, DVDs -- has had at least one failure somewhere. Even DLT.