Hello, > Date: Mon, 4 Jun 2007 11:55:22 -0700 > From: "Mark Best" <[EMAIL PROTECTED]> > Subject: [Bacula-users] Feature: Reduce Backup Size on RAID > To: <bacula-users@lists.sourceforge.net> > Message-ID: > <[EMAIL PROTECTED]> > > Content-Type: text/plain; charset="us-ascii"
> I'm sorry if this question is easily apparent in the Bacula > documentation but I simply can not find a straight answer. > My boss wants to move away from our current backup system; so I > recommended Bacula. > He loves the power and cost savings we would receive from Bacula but > will not convert based on one caveat. > > I'm not sure what term is used to describe the feature but basically the > backup server only saves 1 copy of a file. Using MD5 it checks to see if > the file is different if its not it considers it to be the same file and > doesn't backup multiple copies of the file. > For example most *nixes have the /bin/ls binary file. Assuming it's the > same 'ls' that another system has the backup server only keeps 1 copy of > the binary but 2 entries in the Database - one for each PC. > > This feature becomes very helpful as we have say 300 workstation all > running WinXP - 2GB of 'system' files. That could results in 'savings' > of ~598GB of hard drive space - not to mention bandwidth on the network. > (Please note: we backup up everything to a Hard Disk RAID not tape; and > have bandwidth constraints.) > > Can Bacula perform the above feature? No. >From the number of queries I've seen about this feature, I would say it is a hot topic. This is essentially what I would call a "high end" feature, in that not even all commercial products have it, and to get it you are going to have to pay for a "high end" product. That said, we have a project to implement, and although there is someone interested in developing it, there is at the moment nothing active. It isn't a simple project and would probably at best require 3 to 6 months to implement it. Perhaps if there is enough interest and there were some promises of donations, it would motivate someone to implement it :-) Regards, Kern > What PROs and CONs should I make sure he knows about if it can? > -------------- next part -------------- > An HTML attachment was scrubbed... > ------------------------------ ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
