How would you implement this?

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http://www.linuxquestions.org – Hello LQ, I am just looking for some Ideas on how you would achieve this setup and my question is: you need a live mirrored envioment, plus shared storage system capable of running on linux servers that you have in multiple datacentres. I have been looking into Glusterfs and using Raid 1 would my idea be suitable?. and how would you do it? J (HowTos)