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Old 02-11-2008, 08:01 PM   #1
brooky9999
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Distribution: Slackware 12.2
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Which is quicker - rsyncd or NFS?


Hi,

I have a quick question. I back-up my Slack 10.2 box using an rsync script to another linux server on a 100MB network running the rsync daemon.

Which would be quicker - continue to run it this way with the daemon, or to mount a folder on the server using NFS and run the rsync client without the daemon?

Anyone have any experience with this?


M.
 
Old 02-11-2008, 08:11 PM   #2
BrianK
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Quote:
Originally Posted by brooky9999 View Post
Anyone have any experience with this?
Only anecdotal. nfs is pretty light-weight & efficient. rsync can run through ssh or rsh - it will probably be slower over ssh assuming you're using a cipher, probably about the same over rsh.

If the computers are fast enough, you may be able to eek out a bit more performance from rsync because you can compress the data before it hits the pipe (-z option), especially over a slower network; but if they are slow[er] machines, then compressing the data will only slow things down on a 100Mb network.

I'd just keep on with the rsync method. rsync is nice in that you can always pick up where you left off.
 
Old 02-11-2008, 08:28 PM   #3
brooky9999
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Hi BrianK,

Thank you for your reply.

I think you're right - I'll continue to use the daemon.

However, I also backup to a BSD box running rsyncd over a VPN. I think I'll use the -z option for this.

The receiving box is quite slow though. Will this make a difference?


M.
 
Old 02-11-2008, 09:47 PM   #4
BrianK
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Quote:
Originally Posted by brooky9999 View Post
Hi BrianK,

Thank you for your reply.

I think you're right - I'll continue to use the daemon.

However, I also backup to a BSD box running rsyncd over a VPN. I think I'll use the -z option for this.

The receiving box is quite slow though. Will this make a difference?


M.
If you're going over a VPN, I would guess that means this is not a local connection, but over the internet? If that's the case, then -z will almost always be faster.
 
  


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