http://blog.virtualarchitect.nl/2009/09/history-of-a-high-availability-fault-tolerance-solution/ News, Thoughts and Experiences on Virtualization Mon, 14 Nov 2011 17:34:06 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://blog.virtualarchitect.nl/2009/09/history-of-a-high-availability-fault-tolerance-solution/comment-page-1/#comment-179 ken donoghue Wed, 16 Sep 2009 20:45:00 +0000 http://blog.virtualarchitect.nl/2009/09/history-of-a-high-availability-fault-tolerance-solution/#comment-179 Identical servers is just the beginning of what you'll need to implement VMware ft. VMware has a check list of about 25 non-trivial config requirements before FT can be used. And once you have it, you'll be limited to running applications on a single core per server because no software-based fault tolernant product can support SMP. Not too many true mission-critical apps can live with such a limitation. The SMP shortcoming will be overcome, and it won't be VMware bringing it to market. Identical servers is just the beginning of what you’ll need to implement VMware ft. VMware has a check list of about 25 non-trivial config requirements before FT can be used. And once you have it, you’ll be limited to running applications on a single core per server because no software-based fault tolernant product can support SMP. Not too many true mission-critical apps can live with such a limitation. The SMP shortcoming will be overcome, and it won’t be VMware bringing it to market.

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