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The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

Terminal - The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)
rsync -aHAXxv --numeric-ids --delete --progress -e "ssh -T -c arcfour -o Compression=no -x" user@<source>:<source_dir> <dest_dir>
2012-12-26 13:46:23
User: somaddict
Functions: rsync
10
The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync::

(Everyone seems to like -z, but it is much slower for me)

-a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.

-H: preserves hard-links

-A: preserves ACLs

-X: preserves extended attributes

-x: don't cross file-system boundaries

-v: increase verbosity

--numeric-ds: don't map uid/gid values by user/group name

--delete: delete extraneous files from dest dirs (differential clean-up during sync)

--progress: show progress during transfer

ssh::

-T: turn off pseudo-tty to decrease cpu load on destination.

-c arcfour: use the weakest but fastest SSH encryption. Must specify "Ciphers arcfour" in sshd_config on destination.

-o Compression=no: Turn off SSH compression.

-x: turn off X forwarding if it is on by default.

Flip: rsync -aHAXxv --numeric-ids --delete --progress -e "ssh -T -c arcfour -o Compression=no -x" [source_dir] [dest_host:/dest_dir]

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

rsync: -aHAXxv: unknown option

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Today, I would be wary of enabling RC4 anywhere, but I think today's default preference of ChaCha20 should be just as fast.

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