Speeding up SCP copy operations
So you're quickly copying a ~12GB MKV file from your download server to your archive server and are only getting a paltry 25MB/s.... obviously it isn't the network or disk as you've tested the dual gig connection at around 80-90MB/s via samba. You can't be arsed using rsync so you use scp to copy it but it's pretty damn slow.
file.mkv 12% 1893MB 22.0MB/s 10:23 ETA
Sound familiar? Well, you'll need to change the encryption options and turn off compression.
You can either do this on the command line (scp -c arcfour). Arcfour is plain RC4 with a 128-bit key (RFC4253).
or your could change to ~./ssh/config file to something line this:
Host hal
Compression no
Ciphers arcfour
After these changes you should be getting around double to triple the SCP copy speed
100% 15GB 50.3MB/s 05:10
Please note this is for internal connections only. I wouldn't recommend this for external connections.
