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Flavio's Techno Talk: Filesystem Snapshots with Unionfs

Jun 29, 2005, 07:00 (4 Talkback[s])
(Other stories by Flavio Villanustre)


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[ Thanks to Flavio Villanustre for this link. ]

"Many times, you need to know how a certain filesystem looked like at some point in time, and you want to be able to roll back changes that happened to it after that point. While there are multiple solutions to achieve this goal, certainly one of them is to use filesystem snapshots.

"Unionfs lets you recursively merge many underlying directories (branches) into a single and consistent view. It utilizes a fan-out structure and has a relatively low overhead (under about 12% for 4 branches)..."

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