Re: [Savannah-help-public] backup tape space

[Sylvain Beucler]

On Mon, May 15, 2006 at 12:00:04PM -0400, Ward Vandewege wrote:
> Hi all,
> 
> As you know, the FSF backs up Savannah every night via rsync, and these
> backups are written to tape every week.

Can you tell us some more about it? Are there incremental backups?
What makes it difficult to restore a single file? What's the status of
the plans to improve it? Is there documentation on this for us to
read?


> Currently, the total backup set is about 666GB. The Savannah backups are
> almost 200GB of that. Obviously, the smaller the backup set, the faster
> backups are finished, and the easier it becomes to restore things from tape.

Is the backup set a series of physical tapes? Does that count
incremental backup? (since Savannah currently uses 188GB I'm a bit
puzzled by "200GB").


> Are there old files on Savannah that are not necessary anymore? If so, could
> you remove them? Or if there are large directories that should not be backed
> up, could you tell me their paths so that I can exclude them from the rsync?
> 
> For instance, the /root/Trash folder is 100GB (!). I assume the contents of
> this folder is well, trash. Can something be done about this?

You can probably exclude /root/Trash from the backup.

Can you also clean-up the /root/kernel directory? I have no idea
whether it can be removed or not. I moved all kernel-related files
there, but they originate from FSF admins :)

Beware of remounted filesystems. /home is ~140MB and is mounted 4
times. You can also exclude the cvs ramfs temporary directories. The
mount points may change though, so we need to decide what to do in
such case (do you build the exclude list by parsing /etc/fstab, do we
notify you when those mount point changes, should we share a doc on
this somewhere...?)

-- 
Sylvain