On Tue, 3 Oct 2000, Neulinger, Nathan R. wrote:
> > Another nice feature of Amanda is its index, which allows restoring
> > single files. This is something AFS backup doesn't do. It could be
> > done in Amanda but it would take more effort. For one thing mount
> > points would need to be tracked.
>
> Probably the best way to manage this would be to have the amanda module
> parse the volume dump as it is retrieved. Then you can build the file index
> as you go along without actually going to file level backups.
No.
Amanda does not do file level backups. It currently does dump and tar
backups. But it builds an index so it can do file level restores.
The index is built at backup time so it can be referenced as needed,
without having to spin a tape to know what's on it. You can ask Amanda
about a specific file and it will tell you what tapes it's on. Then
you can pick the version you wish to restore and it will tell you which
tape to load and restore the file for you. Alternatively if you lost
a disk you can just tell it to restore a whole filesystem.
The way to accomplish this with AFS is the same as anywhere else, build
the index at backup time so you'll have it when you need it.
-Mitch
