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Found 2 results

  1. Hi all, Would any of you be able to help me understand how to set up a diskless cluster? I have 4 mini-itx boards, a NAS box, and an Ubuntu 14.04 desktop. If possible, I'd like to operate the cluster from a VM (using VMM) on the desktop, and use the NAS for storing compute data. But a lot of the sites I've read have left me a little overwhelmed. I'm not asking for an idiots guide or anything. But if any of you would be able to explain how things should be configured in simple English, I'd be very grateful! I should note; the NAS box is currently in use. So, unfortunately, formatting the drives is not an option. So if there's a way to have the nodes use an existing share, that'd be really helpful, too. My current config is machines > physical switch > router > Internet. I just want to crunch cancer data, and toy around with multiple OSes from home. Many thanks in advance.
  2. Hello, I've looked these forums for answers but didn't find anything so decided to post a new thread. Here it goes. I'm looking to set up a Apache webserver (for me at home) that is completely redundant (through high-availability, load-balancing or just mirroring) For me, the ideal situation would be to have a virtual machine with Ubuntu 12.10 running Apache 2 and having a second virtual machine who is the exact copy of the first. Modifications made to one, are also made to the second, so if the first one goes down, the second one picks up immediately. (for this mirror synchronization, you will probably recommend rsync but i'm open to other suggestions too). I have googled this for hours and found a lot of info, but nothing really concrete (howtoforge has some nice tutorials, but for Ubuntu 8.04 or so with outdated tools). I did found http://www.howtoforge.com/installing-a-web-email-and-mysql-database-cluster-on-debian-6.0-with-ispconfig-3 and haven't tried it out honestly. Any of you had any experience with that? Basically, my questions are: - What do you recommend as web cluster? - How do web hosting companies do it? What kind of tools do they use to assure high availability? Thanks
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