Plus dd would copy all the unused sectors on the disk
On 2017-01-26 17:05, Eric Oyen wrote:
why not just use dd and a sufficiently large backup device connected
directly to the machine? [...] Basically, I just image the entire
device. It's easier to restore that way.
dd is usually not a good way to back things up because of speed. "dd if=/dev/mapper/vg-home of=/dev/disk/by-id/usb-123456 bs=1M" would take 90 minutes every time it ran because it's transferring 300ishG. "rsync -av --delete-after /home/ /mnt/backup1/home/" usually takes 2-5 minutes because it's only transferring the files that have changed, which is usually 150-500M or so.
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