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#1
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One possible solution to slow network backups
Hi guys,
I'm new to the Mac, and thusly new to SuperDuper!. Since installing the backup software, I've noticed extremely slow backup speed to my networked file server (i.e. 0.5 MB/s over 802.11g and 2.0 MB/s via gigabit ethernet). For reference: Notebook: 2.33 GHz Intel Core 2 Duo MacBook Pro OS: OS X 10.4.8 Networked File Server: Thecus N5200 RAID5 with three 400GB SATA drives Network: Wired gigabit + Linksys 802.11b/g router. (Wired gigabit network directly to file server.) I've been using SMB protocol for my network shared drives, and I think this is why I've been having some throughput slowdowns. The moment I activated the AFP protocol on the RAID server and connected via AFP, my wireless throughput jumped 4-5x. I haven't yet tried the wired connection, but I expect that I'll see some performance increase there, too. If you've been having agonizingly slow backup speeds and you have the ability to use AFP instead of/in addition to SMB, you may have better luck. I will post my wired throughput after I've had had a chance to give it a try. |
#2
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Different servers definitely have varied speeds depending on the protocol. Some are faster with AFP, some with SMB. The first backup is definitely going to be significantly slower than subsequent Smart Updates, though.
(Note that on Gig-E with an Infrant ReadyNAS, I get about 4-6MB/s to an initial image.)
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--Dave Nanian |
#3
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Now that I've had more of a chance to play with it, using Gig-E to my RAID server via AFP results in 5-6MB/s for an initial image.
For my server, AFP results in nearly an order of magnitude increase in speed when making an initial image. (Of course, all future updates to that image will appear much faster.) So if anyone is running into slow(er) than expected network backups, try changing protocols (AFP vs. SMB). Worked for me! |
#4
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Quote:
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#5
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By default, you'd get AFP (when you connect). To use SMB, you'd precede with smb://the-machine-name.
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--Dave Nanian |
#6
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Also, you may have to set up Samba (SMB) on your RAID server. My server has the option to enable/disable Samba. If it is enabled, then as Dave mentioned, you would just precede the server name with smb:// rather than afp://
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