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<li><strong>File</strong>: "Full" file system archive to online storage before re-building a host (completely reformatting disks and partitions)</li>
<li><strong>System Image</strong>: A complete operating system image to allow either [[cloning]] to new hardware, or full system restoration</li>
<li><strong>Database</strong>: See [[Mysqldump]]
</ol>
== Example Use Cases ==
# and also on Linux, a SIGINFO signal to the process id of a dd process will show you the status, and then continue.
kill -USR1 $(pidof dd)
# a local copy is MUCH faster than a network copy -- getting 17 MB/s instead of ~400 kB/s
sudo dd if=/dev/sda5 bs=4096 conv=noerror of=/media/disk-a/backups/sheila-laptop/acer.image.5
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