Amazon Web Service S3(Simple Storage Service) which allows you to store data on what they call the internet cloud now has a Service Level Argreement. The SLA was announced on the AWS blog.
…we commit to 99.9% uptime, measured on a monthly basis. If an S3 call fails (by returning a ServiceUnavailable or InternalError result) this counts against the uptime. If the resulting uptime is less than 99%, you can apply for a service credit of 25% of your total S3 charges for the month. If the uptime is 99% but less than 99.9%, you can apply for a service credit of 10% of your S3 charges.
It's not 5 nines (99.999%) and it's not a lot of compensation if you lose important data, but at least it will provide AWS with the right incentives to keep the service up and running.
Good for Amazon. I hope they extend it to the Elastic Computing Cloud(EC2 is their virtual server service) as well.
Via TechMeme

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{ 2 comments… read them below or add one }
Nirvanix has had an SLA from the launch of the company,How long has Amazon S3 been around? Obvious move by Amazon to win back some customers.
I had not heard of Nirvanix before. I took a look and it looks like S3 but with higher prices. I used AWS because of the EC2 service and used S3 as a natural extension. What’s the benefit of using Nirvanix?