[ydl-gen] Backup software for YDL

[Rick Thomas]

The traditional option is dump/restore, which is included with the  
YDL distribution.

If you're looking for fast, efficient, convenient, disk-to-disk  
backup software, take a look at rsnapshot  on http:// 
www.rsnapshot.org/ .

It's worth noting that dump/restore can also be used disk-to-disk;  
you don't need a tape drive.

If cost is no object, then you'll want to go disk-to-tape with  
offsite storage of your tapes.  If you want to go that route, email  
me and I'll ask our Operations folks for a list of vendors for off- 
site storage with recommendations on quality of service.  Amanda or  
Bacula will be useful software for this option -- allowing more  
efficient use of your tapes and tape drives than a simple dump/ 
restore script would get -- at the expense of additional complexity  
of setup.

If you want ultimate simplicity and security and don't care how much  
it costs, you can do a "remote-mirror" via the internet with the  
backup disk located off-site on a commercial co-location server.

If you are one of a number of co-operating sites, each with plenty of  
surplus disk space, there are some experimental distributed file- 
systems that use error-correcting codes to split files up into  
optimally redundant pieces and spread the pieces out over the whole  
set of co-operating nodes.  In this way the file can't be said to  
reside on any one particular machine.  Among the interesting  
properties of these schemes is that they are resistant against total  
destruction of any subset of the nodes (up to a size that depends on  
the error-correcting code used).  Another interesting property is  
that if the bad-guys seize any subset of the individual nodes (again,  
up to a size that depends on the code used) they won't be able to  
reconstruct any of the files.

So there are a range of options...

Rick



On Jul 24, 2006, at 6:02 PM, Nick Jones wrote:

> Hello, I've gotten everything up and running nicely with YDL 4.1 on my
> XServe with XRAID.   Now I just need to get some backup software
> running to create a backup before formatting my RAID volume that has
> the current backup.
>
> I am looking into AMANDA and Arkeia backup software.   Does anyone
> have any suggestions for backup software?   Cost is no issue, I want
> the most reliable recovery mechanism that exists, so if you have had
> problems with certain solutions please let me know.
>
> I looked at bacula, but something about it "sucking the essence from
> my computers every night" made me uneasy :)
>
> Thanks
>
> Nick
>
>
> -- 
> Nick Jones
> University of Iowa
> Dept of Neurology
> Systems Analyst
> 319-356-0451
> _______________________________________________
> yellowdog-general mailing list
> yellowdog-general at lists.terrasoftsolutions.com
> http://lists.terrasoftsolutions.com/mailman/listinfo/yellowdog-general
> HINT: to Google archives, try  '<keywords>  
> site:terrasoftsolutions.com'