Dirvish is great for backups

[Dale Farnsworth]

JT wrote:
> I'm planning to implement dirvish for our servers.
> http://www.dirvish.org/FAQ.html

dirvish takes a bit of setup, but it can be the basis for a great
backup solution, IMHO.  I use it for backing up my home systems and
also at work.  I added a bit of scripting to create symlinks so that
the past state of my filesystems are available on line.

Here is a directory listing of my /backup directory.

> $ ls /backup
> ./         20060702@  20070107@  20070318@  20070411@  20070417@
> ../        20060806@  20070128@  20070325@  20070412@  20070418@
> 20060101@  20060903@  20070218@  20070401@  20070413@  20070419@
> 20060402@  20061001@  20070225@  20070408@  20070414@  20070420@
> 20060507@  20061105@  20070304@  20070409@  20070415@  20070421@
> 20060604@  20061203@  20070311@  20070410@  20070416@  20070422@

My full fs hierarchy exists under each date-named symlink as of that
date. If a file didn't change between snapshots, it shared between the
snapshots via hard links.  It has come in handy when I have accidentally
removed or overwritten a file.

-Dale Farnsworth