On Fri, Jan 06, 2006 at 08:38:51PM +0000, Jenny Hopkins wrote:
Hullo there,
I've just moved my backup server offsite.
The server has an nfs mounted share on my server at work, and the work server runs dirvish backup (which uses rsync), backing up to this mounted directory. I'm using an openvpn tunnel, and have specified the nfs mount thus: rw,hard,wsize=1024,rsize=1024,tcp,addr=10.3.0.3.
Both tun0 have MTU=1500, and the network connection between work and home is broadband.
Anyway, it took me ages to get it all going and it finally works, but it seems ever so slooooow. Is there a handy way to check transfer rate, or a way to speed it up?
Remember that ADSL (if that's what you mean by 'broadband') is only 256kb/s in the 'up' direction. That's 256k *bits* per second. Thus at the absolute best you're only going to get 256k/8 bytes per second which is 32kbytes/sec. Thus it's going to take something like 30 seconds per magabyte transferred.
It's forty times slower than even 10Mb/s ethernet and four hundred times slower than your typical office 100Mb/s network.