2009/9/27 James Harper <james.har...@bendigoit.com.au>: > > I think that the 'Accurate' option is what the "we have a project to correct > this" refers to, and it does at the expense of a bit of extra disk activity > and number crunching. Search for "Accurate" in the docs to find out more. > > James >
Following your hint, I found "Accurate" in http://www.bacula.org/3.0.x-manuals/en/install/install/Configuring_Director.html#accuratemode BEGIN_QUOTE Accurate = <yes|no> In accurate mode, FileDaemon known exactly which files were present after last backup. So it is able to handle deleted or renamed files. When restoring a fileset for a specified date (including "most recent"), Bacula is able to give you exactly the files and directories that existed at the time of the last backup prior to that date. In this mode, FileDaemon have to keep all files in memory. So you have to check that your memory and swap are sufficent. \begin{displaymath}memory = \sum_{i=1}^{n}(strlen(path_i + file_i) + sizeof(CurFile))\end{displaymath} For 500.000 files (typical desktop linux system), it will take around 64MB of RAM on your FileDaemon. END_QUOTE "FileDaemon have to keep all files in memory" ???? Maybe "file names"? Also the formula is not clear. 500.000 files is around 64 MB ???? It seams more about file names. Considering "file names" loaded in RAM, I still have doubts. For instance: 1) If Accurate=yes, and there is a new file but with old date than previous full/diff/inc backup, will it be backed up? Is this very old Windows Bacula client bug solved? 2) Why this complex solution? Why not just consider the modified date + Archive bit? I know that Bacula solution addressess the deleted/renamed files issue, which is common to all backup programs. But it is an expensive (more memory) solution to the Bacula-only Windows-only issue: risk of not backing up a new file with older date than previous backup. Anyway, if Accurate=yes is THE solution for Bacula client finally work correctly in Windows, it´s very, very welcome because it's time to consider Debian-testing and Bacula as a backup solution in my work (Windows Servers and Clients). Cheers. Júlio Maranhão ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
