Dragonfly BSD and the Hammer Filesystem
Aug 06, 2008, 07:30 (0 Talkback[s])
(Other stories by Juliet Kemp)
"Hammer is a fine-grained snapshot filesystem designed for large
disks/media. Its sweetspot begins at 500GB, and it can handle up to
1 Exabyte of data. Hammer runs a snapshot every every time the
system syncs its mounts, in effect every 30-60 seconds. This
history is retained and can easily be sifted through."