I have saw the web about snapshot
but I want to know how does it work?
(Does it a fully copy or copy the different place)
and how the storage the snapshot uses?
(when i do the snapshot , i use 'df' to see the storage ,i found it take
the size equal to original size,but only take a while , does it really write
into the disk)
does anyone know that ?
thank you so much!!
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