[clue-tech] [Fwd: [clue-admin] Advice admin newb on doing a System backup]

[mike havlicek]

Try bare metal level zero dump and restore togethether
with the Tower of Hanoi algorithm.

-Mike

--- Michael Benavides <mikeb at wispertel.net> wrote:

> David L. Anselmi wrote:
> > Dave W. wrote:
> >>
> >> Hello,
> >>  I want to learn how to make a system recovery
> disk(s) for my 
> >> company's dev. server.  This is what I've figured
> so far as a plan.
> >
> > The usual advice is to figure out your recovery
> procedure first.  Then 
> > design your backup process.  (Then implement, then
> test.)
> >
> >> For the initial compression: boot the server via
> a liveCD with tools 
> >> I need.
> >>
> >> Tar/compress root to a temporary folder then if
> >4.4GB span the file 
> >> over multiple disks (not sure how to do that, but
> I got idea's)
> >>
> >> Using some sort of tool I don't know of yet (but
> I am sure exists), 
> >> make differential saves of / and /boot every
> sunday via a cron script.
> >
> > My advice is: don't even think about writing your
> own scripts.  Use 
> > rdiff-backup or bacula (for more than one
> machine).
> >
> > So.  Recovery procedure from bare metal (doesn't
> address file recovery 
> > or archiving or off-site storage):
> >
> > Buy new hardware as needed (~1 week).
> >
> > Boot off live CD of choice.
> >
> > Partition as needed (RAID, disk, LVM, ext3 for
> hardware RAID or disk, 
> > RAID, LVM, ext3 for software RAID).  Mount
> partitions to match running 
> > config under /mnt.
> >
> > Restore with rdiff-backup.  Restore MBRs with dd.
> >
> > Reboot.
> >
> > Then, backup procedure:
> >
> > Get an extra (external) disk (500GB or at least
> enough larger than the 
> > data on the server).
> >
> > Nightly backups with rdiff-backup from cron. 
> Nightly saves of MBRs 
> > with dd from cron.  Tune rdiff-backup to keep an
> appropriate amount of 
> > history.  All backup stuff goes on the extra
> drive.
> >
> > Document everything you have to do to make backups
> work.  Document 
> > everything you have to do to restore.  Now test
> and adjust process and 
> > documents as necessary.
> >
> > Write an SLA and let your developers know what a
> good SA you are.  
> > Enjoy a pop-tart in a commie-free world.  (Don't
> forget to add in the 
> > pieces I skipped like your utility partition
> (which you may be able to 
> > rebuild from the install media)).
> >
> > While recreating the partitions by hand might seem
> clumsy, it's easy 
> > if you have all the steps written down.  And
> that's the piece you 
> > don't do very often.  And you want the nightly
> piece to be simple and 
> > reliable.
> >
> > Does that help?
> >
> > Dave
> > _______________________________________________
> Does this sound like a good Monthly topic for  the
> Group?  Data backup 
> is  coming out of the basement and we really have to
> recover that data 
> we put on tape. .... ... .. . ..  Linux Backups made
> Easy by Dave.... 
> Sounds like a book there? 
> 
> Mike
> _______________________________________________
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> clue-tech at cluedenver.org
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> 




 
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