On Mon, Feb 9, 2015 at 9:44 PM, James <oldyounggu...@yahoo.com> wrote: > I read there are at least three ways to do backup: > > 1. hotcopy; > 2. dump; > 3. incremental backup; > > I am just wondering are them all have the history included? If I restore any > of them, I will get everything, including the history or previous revisions, > back?
In theory, yes. In practice..... there are some operations, such as dumping and reloading with large binaries or sensitive data excluded, that are designed to *alter* history and clear undesired material This can cause oddness if you have a linked slave, which is yet another way to do backup. There are also operations that will, once a history is corrupted, merely replicate the corrupted history. And remember that the deprecated Berkeley DB logs from older Subversion environments are not cross-platrofm compatible, so bringing those to another host can cause trouble.