Elizabeth Schwartz wrote:
> This is a somewhat loose question but we're still in the brainstorming 
> stage....
>
> We're currently outsourcing all our backups to central IT, who uses
> Legato. This is expensive. We'd like to cut our backup costs while
> continuing to take advantage of the Legato team's infrastructure for
> full/archival/DR backups.
>
> Seems like the currently popular open source backup options are Amanda
> and Bacula. Rsync also becomes a contender if we're doing
> disk-to-disk.
>
> Am I correct in thinking that amanda uses /etc/amandates, bacula uses
> /etc/dumpdates,  Legato uses its own database, and rsync checks the
> files on disk against the existing archive, so none of these systems
> would run interference with each other?
> Am I missing any obvious good choices?
>
> Anyone here doing mixed method backups? The wildcard is that I don't
> control the Legato server and need to choose from a set of fixed
> schedule choices, none of which are really working for us. I may want
> to go fight for a customized schedule but I'll want to be dang sure
> it's going to meet our needs.  (and there's a whole nother layer of fu
> around Legato not understanding native ZFS and needing every single
> ZFS volume to be legacy mounted, but that's another post)
>   

umm, not quite so simple for Amanda.

Amanda uses native backup tools. So, on Solaris with ufsdump, 
/etc/dumpdates is managed by ufsdump, and Amanda references that. On a 
client using GNUtar, Amanda points to /etc/amandates. However, with 2.6, 
Amanda changed that to, I believe, /var/amanda/amandates or 
/var/lib/amanda/amandates.

See:

http://wiki.zmanda.com/index.php/Can_not_read-write_etc-amandates:_Permission_denied
http://wiki.zmanda.com/index.php/Amandates

Note that, while it says "on the client only", the server can also be a 
client. If the server is backing itself up, then this will appear on 
that machine as well.

If you are interested in reasons for choosing Amanda, see 
http://blogs.umass.edu/choogend, the entry "Ten Things I Like about 
Amanda."



-- 
---------------

Chris Hoogendyk

-
   O__  ---- Systems Administrator
  c/ /'_ --- Biology & Geology Departments
 (*) \(*) -- 140 Morrill Science Center
~~~~~~~~~~ - University of Massachusetts, Amherst 

<[EMAIL PROTECTED]>

--------------- 

Erdös 4


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