Nice idea James! Kern
On 07/28/2012 04:31 PM, James Harper wrote: >> The sparse option is intended to work only for *real* sparse files, and you >> are trying to apply it to reduce or compress zeros in certain images. This >> could probably be better done through a plugin where one could tune it to >> do exactly what you want. >> > If your goal is simply to save space from sectors filled with 0's then you'd > be struggling to get better efficiency than gzip for the effort involved. > > For disk images though, a plugin that can skip unused space (which may not be > 0's in the source but wouldn't matter if it was 0's when restored) might be > useful. partimage (http://www.partimage.org) can do this for a good number of > modern filesystems (except ext4 and btrfs according to the main page), so you > might be able to use a pipe plugin to make it happen, although a better > solution would be something that could create a snapshot (if on lvm), a VSS > snapshot (for Windows) or otherwise pause the source machine, then invoke > partimage, and handle restores too. > > James > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Bacula-devel mailing list > Bacula-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-devel > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
