Posted: Saturday 23rd of April 2011 09:55:56 AM By Rich Wolski

After reading about the AWS outage, it occurred to me that while much attention has been given to the effects, little discussion of the fundamental cloud principles at work has been offered. It seems to me that there are two important factors to consider when analyzing an event like the AWS outage:

• the tension between elasticity and fault isolation
• the rarity of rare events.

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