Hi & thanks, On Wed, 2010-04-28 at 17:31 +0200, Florian Philipp wrote:
> > Can md use one internal and one external disk in a RAID 1 setup, with > > the external disk not always there? Any other suggestions? > > > > thanks :) > > md would be extremely slow because it has to rebuild/resync the complete > array. so every time you unplug and re-plug the external disk, it will essentially re-copy everything? Damn, there goes that fine idea! > If you can live with just one big partition as a backup (probably with > separate /boot), you should replace fstab and grub.conf on the backup > medium and blacklist them from the files which you want to back up. why wouldn't I backup fstab and grub.conf as well? If my internal disk dies, I assume I'll swap them over, meaning grub and fstab will have to be the same. > Concerning the backup tool, I would use `rsync --delete` plus all > relevant switches for permissions, times, acls, etc. If you use another > tool, just make sure it doesn't put some metadata onto the backup medium > and that it can delete files which no longer exist on the original medium. I was thinking of rsync, but I didn't want to do it in an hourly cron fashion, I was hoping for some "gamin" alteration-triggered idea. > With regard to your requirement to just 'pull the cord' without > umounting it: I wasn't thinking of pulling the chord without unmounting, I was thinking of the machine dying, hence leaving the disk in a non-shutdown state. thanks for the tips :) rsync will at least get me going quickly. Yesterday I tried iotop to with dd - some slowness but otherwise quite nice. -- Iain Buchanan <iaindb at netspace dot net dot au> Real computer scientists don't comment their code. The identifiers are so long they can't afford the disk space.
