backup rotation
backup rotation
(operating system)Any system for re-using backup media,
e.g. magnetic tape. One extreme would be to use the same
media for every backup (e.g. copy disk A to disk B), the other
extreme would be to use new media every time. The trade-off
is between the cost of buying and storing media and the
ability to restore any version of any file. One example is
the Grandfather, Father, Son (GFS) scheme.
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