Re: [tlug] Backup Software

[Nguyen Vu Hung <vuhung16plus@example.com>]

On Thu, Nov 25, 2010 at 3:02 PM, Nicolas Limare <nicolas+tlug@example.com> wrote:
>
> > Alternatively, do you have any ideas for a good backup tool
> > I can use to backup the contents of various linux machines & servers
> > through the network?
>
> When it comes to backups I always prefer to use simple,

<s>low-tech</s>

I agree with you that rsync is simple, not but low-tech. Not many developers use
this kind of knife.

I agree with the following points: rsync + ssh + cron does the job.

One problem with rsync is that, sysadmins use it without knowing what
is being copied,
and what has changed while git knows it.

> tools, because when something fails or is missing when you need to
> recover the backup, it becomes a nightmare.
>
> My own solution:
> * rsync everything from all the machines to a central backup server
>  rsync goes over ssh, using a special backup user with a passwordless
>  ssh key, and rsync is performed as root (top maintain users and
>  perms) on the backup server via sudo and a wrapper script handled in
>  .ssh/authorized-keys
> * rsync everything from the central backup server to redundant
>  secondary backup servers
> * on each backup server, make snaopshots with rsnapshot
> * everything runs with cron, and is monitored in munin
> * everything on RAID1 redundant disks, no striping,lvm,...
>
> No compression, no special diff format, simple, robust. Any file from
> any past snapshot on any disk of any backup mirror is immediately
> available.
>

--
Best Regards,
Nguyen Hung Vu [aka: NVH] ( in Vietnamese: Nguyễn Vũ Hưng )
vuhung16plus{remove}@example.com , YIM: vuhung16 , Skype: vuhung16plus
A brief profile: http://www.hn.is.uec.ac.jp/~vuhung/Nguyen.Vu.Hung.html