Block copy disk over SSH with gzip

Software

We haven’t had a things you already know, unless you don’t installment since March. So many things have happened in the interim, not least the need to copy disks over a network.

$SOURCE

$ dd if=$SOURCE_DISK | gzip -1 - | pv | ssh $TARGET_SERVER "gunzip -1 - | dd of=$TARGET_DISK"

This will copy a block device across SSH to a remote server, compressing with gzip to remove empty space, and pv to show progress.

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Ruben Schade is a technical writer and IaaS engineer in Sydney, Australia who refers to himself in the third person in bios. Wait, not BIOS… my brain should be EFI by now.

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