[mirror-admin] Fastest way to copy data between two servers?

[Belanger, Brad]

-----Original Message-----
From: mirror-list-d-bounces at redhat.com
[mailto:mirror-list-d-bounces at redhat.com] On Behalf Of Scott Baker
Sent: Tuesday, November 22, 2011 11:10 AM
To: A private discussion group for official mirrors of ftp.redhat.com
Subject: Fastest way to copy data between two servers?

My old Fedora mirror is going to be retired and replaced newer hardware.
I need to copy data between the two and I'm wondering what the fastest
way is going to be? Usually I'd just rsync + SSH between them but that's
probably not the most efficient for 3TB of data. Then I started
thinking, what if I NFS mounted the old one and used rsync + NFS
instead.

I suppose the absolute fastest would NFS + "cp -a"?  That doesn't give
me any recovery if it crashes. The transfer is going to take a long
time, so I'm pretty sure I want rsync for recoverability. Any
suggestions on best practices to move a large amount of data like this?

-- 
Scott Baker - Canby Telcom
System Administrator - RHCE - 503.266.8253

--

If they are on the same network I've used rsync with a weaker cipher to
get better speeds. 

rsync -avHP -e 'ssh -c arcfour' /mirror/path/ newhost:/mirror/path/

brad

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