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 Post subject: Kurobox Mirror
PostPosted: Thu Sep 27, 2007 2:46 pm 
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Joined: Mon Aug 07, 2006 10:32 pm
Posts: 13
Lets say I have 2 Kurobox's, one is the main unit. I want the second unit to make a mirror of the main Kurobox, perhaps once a night the two will get back in synch. What's the best way of doing this? rsync? rcp? cp over NFS? rsync looks the best, but I'm afraid it will take more memory than the Kurobox has. Thanks for input.

PS - I don't need commentary on how if the primary system gets corrupted that I am basically mirroring the backup system. I have an incremental tape backup for that. This is in case the unit dies un-expectedly, there is a unit ready to go.

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 Post subject:
PostPosted: Thu Sep 27, 2007 10:35 pm 
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Joined: Thu Jun 07, 2007 11:42 am
Posts: 29
Rsync probably makes the most sense. I don't know what distro you are using but there is a good tutorial for debian here:
http://www.howtoforge.com/mirroring_with_rsync

Also there is a wiki page dedicated to rsync on the nas-central (the combined kuro/linkstation wiki)

http://www.nas-central.org/index.php/Rsync


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 Post subject:
PostPosted: Fri Sep 28, 2007 2:04 am 
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Joined: Fri Oct 29, 2004 6:00 am
Posts: 91
Location: UK
Another vote here for rsync.

I do a similar thing (but backup to a place on the internet - rsync.net, highly recommended). My Kuro does a ton of other stuff besides, and I've not noticed any performance problems...

Matthew


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 Post subject:
PostPosted: Fri Sep 28, 2007 9:27 am 
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Joined: Mon Aug 07, 2006 10:32 pm
Posts: 13
Thanks for your comments.

rsync is the best option. But I am backing up over 500,000 files - according to the manual rsync uses over 100bytes per file (and reports say it takes more than that) so at the very least I am going to use all RAM and swap on the drive if I rsync everything at once.

Does anyone have any scripts that perform rsync in chunks?

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 Post subject:
PostPosted: Fri Sep 28, 2007 2:05 pm 
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Joined: Sat Jul 15, 2006 8:49 am
Posts: 219
Location: Virginia
Would it be acceptable to just create a swap file or partition and let it go?


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