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Amazon's cloud outage was followed by a pair of outages suffered by VMware's new open-source PaaS play, Cloud Foundry, which late last month suffered two separate incidents of prolonged downtime.
That same week, Yahoo Mail also suffered an outage that lasted several hours.
Last week's Microsoft BPOS cloud outage was also not the first for the Microsoft cloud service.
In January 2010, Microsoft Online Services users in North America were met with intermittent access to services, including BPOS. According to Microsoft, some users served by a North American data center were affected. In that instance, monitoring alerted Microsoft to a possible issue and troubleshooting found there was a problem with network infrastructure, resulting in intermittent access for customers. In response, Microsoft found the root cause and took the steps necessary to fix the issue. Microsoft also reached out to affected business customers and offered them a credit if they were impacted.
Microsoft BPOS suffered another string of cloud outages in August 2010 and September 2010, which prompted the software giant to launch an Online Service Health Dashboard, an online tool where customers can obtain up-to-date information on the status of BPOS apps as well as a 35-day status history of service performance and availability.
In the blog post last week, Microsoft's Thompson was apologetic for the Microsoft BPOS cloud outage and said Microsoft should have clued in customers and partners immediately after the first BPOS cloud outage was noticed.
"As a result of Tuesday's incident, we feel we could have communicated earlier and been more specific," Thompson wrote. "Effective today, we updated our communications procedures to be more extensive and timely. We understand that it is critical for our customers to be as fully informed as possible during service impacting events. We will continue to improve the timeliness and specificity of our communications."
The BPOS cloud issues only affected customers served from Microsoft's Americas data center, and Thompson said the incidents were specific to BPOS and unrelated to Microsoft Office 365 or any other Microsoft cloud services. Thompson said Microsoft will provide a full post mortem in coming days and will also offer updates on how its SLAs were impacted. Microsoft said it will issue a services credit to impacted customers.
"As I've said before, all of us in the BPOS team and at Microsoft appreciate the serious responsibility we have as a service provider to you, and we know that any issue with the service is a disruption to your business -- that's not acceptable," Thompson said. "I want to assure you that we are investing the time and resources required to ensure we are living up to your -- and our own -- expectations for a quality service experience every day."
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